Most of the carbohydrate (e.g., for a rested, well-fed athlete) used as a substrate during high-intensity exercise comes from
Answers
During high-intensity exercise, the primary source of carbohydrates used as a substrate is muscle glycogen.
Muscle glycogen is the storage form of glucose found in the muscles. It serves as a readily available source of energy during intense physical activity. When the body is at rest and well-fed, the muscles store glycogen to ensure a sufficient supply of energy for exercise. During high-intensity exercise, the body relies on the anaerobic energy system, which does not require oxygen. This system provides quick bursts of energy but is limited in duration. Carbohydrates, in the form of muscle glycogen, are the preferred fuel source for this anaerobic energy system.
As exercise intensity increases, the demand for energy rapidly rises. The body breaks down muscle glycogen into glucose through a process called glycogenolysis. The glucose is then converted into ATP (adenosine triphosphate), which is the molecule that provides energy for muscle contractions.
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Related Questions
Which of the following are classified as
moderately-restricted?
A. National Historic Sites
B. National Wildlife Refuges
C. National Monuments
D. National Mall
Answers
What are some examples of organisms that are difficult to classify or have been reclassified based on new evidence?
Answers
Some examples of organisms that are difficult to classify or have been reclassified based on new evidence are given below-
What is organisms?Organisms are living things that are made up of cells, and have the ability to respond to their environment, grow, reproduce, and maintain homeostasis. They range from single-celled bacteria to complex multicellular organisms such as humans. All organisms need energy, nutrients, and a suitable environment in order to survive. Organisms can be classified into different groups based on their characteristics, such as animals, plants, and fungi.
1. Horseshoe Crabs: These organisms were originally classified as arachnids, but recent evidence has revealed that they are more closely related to arthropods.
2. Coelacanths: These ancient fish were believed to have gone extinct millions of years ago, but in 1938 a living specimen was discovered off the coast of South Africa, reclassifying them as living organisms.
3. Green Sea Turtles: These turtles were originally classified as reptiles, but new evidence suggests they are more closely related to birds.
4. Humpback Whales: Although they look similar to dolphins, recent genetic testing has revealed that they are more closely related to baleen whales.
5. Homo sapiens: Although humans were long considered a separate species, recent evidence has revealed that they are more closely related to Neanderthals and other extinct hominid species.
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Recommend TWO ways on how you would adapt your reading skills to respond effectively to examination questions? In EACH answer indicate how that could improve your ability to gain maximum marks for a question.
Answers
Reading skills are the abilities that pertain to an individual's capacity to read, comprehend, interpret and decode written language and texts.
What are the ways of effective reading skills?Two ways you can adapt your reading skills to respond effectively to examination questions are:
Skimming and scanning the text are useful techniques that can help to quickly identify key information in passage. Skimming involves quickly reading through passage to get an overall understanding of the main idea and structure whereas scanning involves searching for specific information, such as keywords or phrases, that are relevant to question.
Active and critical reading involves engaging with text by asking questions, making connections and evaluating author's arguments and evidence. When reading an examination passage, ask yourself questions like: What is the main argument or thesis?
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What happens to macromolecules from food during digestion?
What atoms make up sugar molecules, amino acids, and fatty acids?
What do you notice about the atoms that make up these molecules?
How are these atoms used to make new molecules? What types of molecules are
made?
Where does the energy come from to produce these new molecules?
If there is not enough carbohydrate intake, how does the body form glucose?
If there is a glucose shortage, how does the body produce energy?
Answers
Answer:
Explanation:
. Chemical digestion is the biochemical process in which macromolecules in food are changed into smaller molecules that can be absorbed into body fluids and transported to cells throughout the body. Substances in food that must be chemically digested include carbohydrates, proteins, lipids, and nucleic acids.
2.A fat molecule, such as a triglyceride, consists of two main components—glycerol and fatty acids. Glycerol is an organic compound with three carbon atoms, five hydrogen atoms, and three hydroxyl (–OH) groups.
3. If it's in the table, it's an element! Atoms can join together - they form bonds together - to make MOLECULES. For example, two atoms of hydrogen hook together to form a molecule of hydrogen, H2 for short.
4. When atoms join together to form molecules, they are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons between the atoms. It is only the electrons in the outermost shell that ever get involved in bonding.
A compound is a molecule made of atoms from different elements. There are two main types of chemical bonds that hold atoms together: covalent and ionic/electrovalent bonds. Atoms that share electrons in a chemical bond have covalent bonds. An oxygen molecule (O2) is a good example of a molecule with a covalent bond.
5.Beginning with energy sources obtained from their environment in the form of sunlight and organic food molecules, eukaryotic cells make energy-rich molecules like ATP and NADH via energy pathways including photosynthesis, glycolysis, the citric acid cycle, and oxidative phosphorylation.
which phrase best defines biotechnology? responses the practice of using technology in science experiments the practice of using technology in science experiments the science that involves using living organisms to produce needed materials the science that involves using living organisms to produce needed materials the use of technology to solve medical problems in living organisms
Answers
Biotechnology defined the responses of the practice by using technology in science experiments the practice of using technology in science that involves using living organisms to produce needed materials and technology to solve medical problems in living organisms.
An example of a biotechnology is brewing and baking bread by using this technology that utilizes living organisms, biological systems or parts of this to create or develop different products. In order to achieve the application of organisms, cells and molecular analogues for products and services that referred to the integeration of natural science.
Biotechnology is used for the potential for vaccines, drugs, to create novel diagnostics and other medical countermeasures needed to detect and prevent or treat infectious diseases.Team work and communication skills, Complex problem solving innovative thinking skills are needed for biotechnology.
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Write a paragraph about cells (5 sentences)
Answers
Answer:
prokaryotic: A prokaryote is a single celled organism that does not have a nucleus or membrane bound organelled and its dna is in the cytoplasm. They also cant undergo mitosis because they dont have a nucleus. they are most likely to be unicellular
examples: archea and bacteria
eukaryotic:
A eukaryotic cell is an organism made up of cell that contain their dna in a nucleus. Eukaryotic cells contain membrane bound organelles as well as ribosomes.not all of them are the same though. mst of them are multicellular and go through mitosis
examples: fungi, plants, animals
d) Based on your above answers, do all substitutions cause a change in the amino acid sequence of a
protein? Explain
Answers
Answer:
No, they do not all cause a change in amino acid sequence of a protein.
Explanation:
Substitution mutation is the type of mutation that results when the nucleotide base of a gene is replaced by another base in the sequence. A substitution mutation can result into three different types of mutation namely; silent mutation, missense mutation, and nonsense mutation.
- In silent mutation, the nucleotide base that gets replaced by another still forms a codon that encodes the same amino acid as in the original sequence. e.g if guanine replaces adenine in the sequence, TTA to form a mutated sequence, TTG. This mutated codon (TTG) still encodes LEUCINE amino acid just as TTA does. Hence, there is no effect on the resulting amino acid sequence. This portrays that NOT ALL SUBSTITUTIONS cause a change in amino acid sequence of a protein.
Which of the following occurs when the evolutionary effects of genetic drift is the greatest?
The population size is small
The population size is large
$exual selection occurs
Intraspecific competition is weak
Answers
Answer:
The population size is small
Explanation:
Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error). Genetic drift occurs in all populations of non-infinite size, but its effects are strongest in small populations.
Answer:
The population size is small.
Explanation:
true or false: oxygenated blood (blood high in oxygen) and deoxygenated blood (blood low in oxygen) mix together in the heart. the heart then pumps this blood throughout the body.
Answers
Oxygenated blood (blood high in oxygen) and deoxygenated blood (blood low in oxygen) mix together in the heart. the heart then pumps this blood throughout the body. This statement is true for fishes but false for humans.
False. Oxygenated blood and deoxygenated blood do not mix together in the heart. Instead, they are kept separate in a circulatory system that is divided into two distinct pathways: the pulmonary circulation and the systemic circulation.
Oxygenated blood is carried from the lungs to the heart via the pulmonary veins and enters the left atrium. From there, it is pumped into the left ventricle and then into the systemic circulation, where it is carried to the rest of the body to deliver oxygen to the tissues.
Deoxygenated blood, on the other hand, is carried from the body to the heart via the systemic veins and enters the right atrium. From there, it is pumped into the right ventricle and then into the pulmonary circulation, where it is carried to the lungs to be re-oxygenated.
The separation of oxygenated and deoxygenated blood in the heart ensures that the body's tissues receive a constant supply of oxygen-rich blood, while deoxygenated blood is quickly transported back to the lungs for re-oxygenation.
True. In most fish, oxygenated and deoxygenated blood do mix together in the heart and are then pumped throughout the body. This is because fish have a single circulatory system, as opposed to the double circulatory system found in mammals, birds, and reptiles.
In a single circulatory system, the heart pumps a mixture of oxygenated and deoxygenated blood to the rest of the body. This type of circulatory system is efficient in fish, as they have lower metabolic demands than other animals and do not require a separate pathway for oxygenated and deoxygenated blood.
However, some species of fish, such as some species of lampreys and cartilaginous fish, have a two-chambered heart and a partially divided circulatory system, which provides a higher degree of separation of oxygenated and deoxygenated blood. This is an intermediate stage between the single circulatory system found in most fish and the double circulatory system found in mammals, birds, and reptiles.
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Which characteristic of life best describes the life cycle of a frog? having cells using energy responding to the environment growing and developing
Answers
Answer:
The correct answer is - growing and developing.
Explanation:
Al the given characteristics are the characteristics of a living organism including made up of cells, utilizing energy, response according to the environment, growth, and development, and others.
The life cycle of the frog can be described best by Growing and Developing as it grows from a tadpole to an adult frog by growing and developing. It is called metamorphosis which is an essential characteristic of frogs.
growing and developing.
All of the mentioned features are those of a living thing, such as the fact that it is made up of cells, that it uses energy, that it responds to the environment, that it grows and develops, and so on.Growing and Developing is the best way to define the frog's life cycle, since it grows from a tadpole to an adult frog by growing and developing. It's called metamorphosis, and it's a crucial feature of frogs.For more information:
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How can a father's habits affect the health of an unborn child during prenatal development?
A) father's use of crack cocaine causes sperm mutations, such that two sperm are capable of fertilizing a single ovum.
B) father's nicotine intake produces DNA changes that are passed to the fetus on chromosome 23.
C) father's use of barbiturates interacts with a mother's use of marijuana, resulting in missing chromosomes on a child's 8th pair.
D) father's use of alcohol or illegal drugs can affect his sperm, which in turn may lead to chromosomal damage that affects the fetus.
Answers
However, father's use of barbiturates interacts with a mother's use of marijuana, resulting in missing chromosomes on a child's 8th pair. This statement is not true, which makes option C incorrect.Father's use of crack cocaine causes sperm mutations, such that two sperm are capable of fertilizing a single ovum.
The father's use of alcohol or illegal drugs can affect his sperm, which in turn may lead to chromosomal damage that affects the fetus. This is how a father's habits can affect the health of an unborn child during prenatal development. It is important to note that the consumption of drugs, including alcohol, by expectant fathers poses significant risks to the developing fetus. Maternal alcohol or drug use, such as marijuana or cocaine, has long been known to have detrimental effects on the developing fetus, however, the negative effects of paternal alcohol or drug use on the fetus have only recently come to light. Nicotine intake does not produce DNA changes that are passed to the fetus on chromosome 23. Therefore, option B is incorrect . Barbiturates are a class of drugs that are used to treat a range of conditions, including anxiety and sleep disorders. They can be dangerous when taken improperly, leading to dependence and addiction. However, father's use of barbiturates interacts with a mother's use of marijuana, resulting in missing chromosomes on a child's 8th pair.
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Someone plz help me :(
Answers
Answer:
C
Explanation:
Chemical energy stored in muscles transform to kinetic and heat energy
Answer:
C
Explanation:
Our body contains chemical energy, which later, when we r running or cycling gets transformed into kinetic and thermal energy
Describe the process of photosynthesis by including:
– where it occurs
– its energy source
– any energy transformations that occur
Answers
Answer:
Photosynthesis is the process of transforming sunlight into chemical energy by storing it in the bonds of glucose or sugar.
This process occurs in plants, bacteria and some protists, or algae to produce sugar as food. The chlorophyll present in leaves of photosynthetic plants captures energy from sunlight and converts it to carbohydrates. Photosynthesis uses carbon dioxide (CO2) and water as raw material to produce sugar and release oxygen as a byproduct.
This process uses solar energy to convert carbon dioxide and water into energy in the form of carbohydrates. It is a two-part process. ... Plants, algae and some bacteria use photosynthesis to create energy used for growth, maintenance and reproduction.
Read the Craft and Structure notes, then read the poems in Collection 3. Following the directions listed on page 401 under "Writing to Sources" I want you to write a narrative and a lyric poem about an admirable person. Yes, I want both a narrative and a lyric poem about the same person. Do not forget to include the paragraph comparing your topic and style to one of the poems in the collection .
Answers
Answer:
Read the Craft and Structure notes, then read the poems in Collection 3. Following the directions listed on page 401 under "Writing to Sources" I want you to write a narrative and a lyric poem about an admirable person. Yes, I want both a narrative and a lyric poem about the same person. Do not forget to include the paragraph comparing your topic and style to one of the poems in the collection -- you can choose to examine either your narrative or lyric poem for this portion, but you do not have to do both.
This assignment is due by 3 p.m. Monday.
Explanation:
Give True Brainliest.
A Low frequency will have a ___________wave length.
Answers
Answer:
long wave length
Explanation:
Answer:
Longer
Explanation:
Because it's slow
What will happen to a cell placed in a hypertonic solution?
Answers
Answer:
Explanation:
lose water and shrink
a strain of mycobacterium tuberculosis that is deficient in nonhomologous end joining repair should be more sensitive to damage by
Answers
A strain of mycobacterium tuberculosis that is deficient in nonhomologous end joining repair should be more sensitive to damage by X rays.
What are the uses of X-rays?The majority of bodily parts can be examined with X-rays. They primarily serve to examine the bones and joints, though they can also occasionally be used to identify issues with soft tissue, such as internal organs. Bone breaks and fractures can be found during an X-ray, among other issues.
Mycobacterium tuberculosis is the bacteria that causes tuberculosis (TB). The kidney, spine, and brain are just a few of the bodily parts that the TB germs can infect in addition to the lungs, which is where they usually cause harm. Not always does the TB virus make people sick.
The bacterial infection tuberculosis, which can be acute or chronic, is most usually seen in the lungs (TB). Similar to a cold, TB is mostly spread through airborne droplets that an infected person exhales into the surroundings. Tubercles, which are tiny tissue nodules, are produced by the bacteria.
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Task 2:
The sizes of boiled eggs were measured before and after they were placed in two
different solutions. Egg A was 125 mm in diameter before being placed in pure
water. It swelled up and increased in size to 180 mm. Egg B shrank from 130 mm
to 100 mm after being placed in a salty solution.
(12 marks)
You must put this information in a table with detailed headings.
Answers
Data tables are used to summarize data recorded during an experiment.
The information provided here involves the type of egg, difference in size before and after being placed in the solution, the type of solution, and how the egg size changed. The table is attached.
What is a data table?
Data tables are representations of data collected during an experiment.
Tables are organized in rows and columns, which resume significant information, making them easy to understand and interpret.
Together graphs and charts are used to express the results of different experiments, to make them more comprehensive to the lector.
In the exposed example, data includes
Egg (A and B)Measure before and after being placed in the solution Solution ( pure water and salty solution)Change (swell - shrank)You will find the table in the attached files
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The diagram summarizes the light-dependent reactions of photosynthesis.
What is the input of the light-dependent reactions, labeled X?
A) CO2, H2O, O2, and light
B) CO2, H2O, and light
C) CO2 and H2O
D) H2O and light
Answers
Answer:
d. H2O and light
Explanation:
Overgrazing in the sahel is limiting sustainable development in africa because —.
Answers
Answer:
Areas of savanna are turning into desert.
Explanation:
Which of the following is the recommended duration of exercise for a beginner hypertensive client? A. О 20-30 mins a day, 2 days per week B.O 45-60 mins a day, 2 days per week C. 20-30 mins a day, 4 days per week D. O 45-60 mins a day, 4 days per week
Answers
The recommended duration of exercise for a beginner hypertensive client is option C, which is 20-30 mins a day, 4 days per week.
Hypertension, or high blood pressure, is a chronic condition that can be improved with regular physical activity. For beginners, it's important to start with low to moderate intensity exercise and gradually increase the duration and intensity over time. Option C provides a good starting point of 20-30 minutes of exercise per day, 4 days per week. As the client progresses, they can gradually increase the duration and intensity of their exercise routine. It's also important to consult with a healthcare provider before starting any new exercise program, especially if the client has hypertension.
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Do you think different sources of carbs (sugars) would affect
the rate of fermentation in yeast? Why or why not?
Answers
Yeast can use oxygen to release the energy from sugar (like you can) in the process called "respiration". So, the more sugar there is, the more active the yeast will be and the faster its growth (up to a certain point - even yeast cannot grow in very strong sugar - such as honey).
However, if oxygen is short (like in the middle of a ball of dough), then yeast can still release energy from sugar, but in these conditions, its byproducts are alcohol and carbon dioxide. It is this carbon dioxide gas which makes the bubbles in dough (and therefore in bread), causing the dough to rise.
Alcohol is a poison (for yeast as well as for people) and so the yeast is not able to grow when the alcohol content gets too high. This is why wine is never more than about 12% alcohol.
What unit of measurement do we use when measuring with a metric ruler?
Answers
Answer:
meter
Explanation:
If you want to view live fruit flies, what type of microscope would be best suited for this purpose?
a) Compound light microscope
b) Dissecting light microscope
c) Transmission electron microscope
d) Scanning electron microscope.
Answers
b) Dissecting light microscope is used to view live fruit flies, what type of microscope.
The stereo, stereoscopic, or dissecting microscope is a type of optical microscope created for close examination of samples at low magnification. It typically employs light that is reflected from the surface of the item rather than light that is transmitted through it. The device uses two distinct optical pathways, two objectives, and two eyepieces to provide the left and right eyes slightly different viewing angles. This configuration creates a three-dimensional image of the sample under investigation. When filming and evaluating solid materials with complicated surface topography, stereomicroscopy overlaps macrophotography because a three-dimensional perspective is required to analyze the intricacy.
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WARM-UP
Look at the two skulls on the right. Use the drop-
down menus below to decide whether certain
components of the human and chimpanzee skull
are similar or different.
Overall skull shape:
Teeth:
Nose shape:
Parts of jaw:
Skull size:
Answers
Answer:
overall skull shape- similar
nose shape- different
teeth- different
parts of jaw- similar
skull size- similar
Explanation:
correct on edge:)
The correct match of the components of the human and chimpanzee skull is:
overall skull shape- similarnose shape- differentteeth- differentparts of jaw- similarskull size- similarWhat is the difference between the skull of humans and chimpanzees?Chimp skulls have prominent brow ridges that extend considerably in front of the cranium. In contrast, the human skull's forehead rises immediately from the brows. A prominent nasal bone in the human skull between the eyes contrasts sharply with the flat curvature that leads to the chimp nasal hole.
In comparison to human cranial anatomy, apes have a more projecting face, a larger brow ridge, a longer face, and larger teeth in the front than in the back.
Therefore, the correct match is
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The information in this rectangular codon chart could be represented in a different way (ex: circular codon chart).
CIRCLE ONE:
TRUE
FALSE
Answers
true i believe fix if im wrong
In addition to loss of muscle mass, which is a symptom of inadequate calorie intake?
Answers
In addition to loss of muscle mass, inadequate calorie intake can lead to loss of bone density and an increased risk of fatigue, illness, injuries and poor recovery.
Why is it important to consume adequate calories?When your consumption of calories is not adequate, your body will not get all the necessary nutrients.It slows down the metabolism so as to conserve energyCalorie restriction can lead to reduce in leptin, a hormone that regulates appetite.Lower levels of leptin can lead to increase in hunger thus a person overeats. This results in increase in body weight.Low-calorie dieting increases stress and results in the release of the stress hormone (cortisol). Due to response to stress, the body conserves energy and the metabolism slows to combat the risk of starvation. Therefore, it is important to consume appropriate amount of calories and nutrients.Learn more about calorie intake here:
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Which of the following choices evaluates - 2x + 4x, when x = -2?
A8
B-8
C-16
D. None of these choices are correct.
Answers
Answer:
D. none of these choices are correct
Explanation:
substituting -2 as x into the expression,
-2x + 4x
-2(-2) + 4(-2)
4 + (-8)
4 - 8
-4
the answer should be -4
Fungi a. typically reproduce sexually when environmental conditions are poOr: b. typically reproduce sexually when environmental conditions are good. c. always reproduce sexually: d. always reproduce asexually
Answers
Fungi typically reproduce sexually when environmental conditions are poor. Sexual reproduction is frequently observed in fungus in response to poor environmental circumstances.
There are two sorts of mating. When two forms of mating are present in the same mycelium, it is referred to be homothallic, or self-fertile. To reproduce sexually, heterothallic mycelia require two distinct yet compatible mycelia.
However, historical accumulations of fungal spores are an important component of palynological records that are otherwise dominated by spores produced by seedless plants and pollen from seed plants.
Changes in the proportions of different types of fungal spores can reveal important details about the biological communities and climatic conditions that supported these fungi.
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Why is it a good idea to substitute transitions for visual elements in a text?
Answers
Answer:
Transitions can be communicated more easily when reading than a visual element can.
Explanation:
i just did it