According to the endosymbiont theory, what benefit was gained when the ancestor of the eukaryotic cell incorporated a photosynthetic prokaryote? ANSWER Unselected The rate of cellular respiration was greatly accelerated. Unselected The cell became more effective in warding off predators. Unselected The newcomer provided nourishment to its host. Unselected Organic molecules could be used to provide energy. Unselected The cell acquired membrane-bound organelles. Unselected I DON'T KNOW YET

Answers

Answer 1

When the ancestor of the eukaryotic cell incorporated a photosynthetic prokaryote, the main benefit gained was that the cell acquired the ability to harness light energy and perform photosynthesis.

According to the endosymbiont theory, the incorporation of a photosynthetic prokaryote by the ancestor of the eukaryotic cell led to the development of chloroplasts, which are responsible for photosynthesis in eukaryotes. This event occurred through an endosymbiotic relationship, where the prokaryote was engulfed by the ancestral eukaryotic cell but instead of being digested, it established a mutualistic association.

By incorporating the photosynthetic prokaryote, the eukaryotic cell gained the ability to use light energy to produce organic molecules through photosynthesis. This allowed the cell to synthesize its own nutrients, specifically glucose, using carbon dioxide and water in the presence of light and chlorophyll. Photosynthesis is an essential process that provides energy and organic compounds for the cell's metabolic needs.

Therefore, the main benefit gained from incorporating a photosynthetic prokaryote was the ability to perform photosynthesis and produce organic molecules, which served as a valuable source of nourishment and energy for the host eukaryotic cell.

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Related Questions

Which best describes an experiment?
In a lab a scientist measures the height of roses that received different fertilizers.
A scientist measures the speed at which a cheetah travels while it is hunting.
A scientist measures the rate at which a population of wild geese reproduces.
A scientist measures the width of a certain type of maple leaf throughout a forest.

Answers

A: In a lab a scientist measures the height of roses that received different fertilizers.

An experiment must include variables. The other three are just measurements, but since the scientist is varying the types of fertilizers used, this better describes an experiment. It is also done in a controlled environment (in a lab) which helps to eliminate other uncertainties.

do robots respond to their enviroment?

Answers

Answer: Yes

Explanation: Yessss

The villi of the small intestine Group of answer choices provide an enormous surface area that facilitates absorption. store fat-soluble vitamins. continuously push food through the small intestine to the colon. inactivate enzymes consumed with food.

Answers

Answer:

Provide an enormous surface area that facilitates absorption.

Explanation:

The villi of the small intestine provides an enormous surface area that facilitates absorption of nutrients from the small intestine. The cells present on the villi are packed full of tiny hair-like structures called microvilli. It performs the same function as villi perform in the small intestine i.e. absorb nutrients. Villi are surrounded with cells that help in the absorption of nutrients from the food that passes through it.

for each of the following, state whether it is an organelle , a cell , a tissue , an organ , an organ system, or an organism a) heart b) trachea c) onion epidermis d) onion bulb e) onion plant f) human being g) lung

Answers

b heart because it is connected to the organelles

Will give brainest!!!!
Why were some researchers known as Gestalt psychologists?
a) They only studied one part of the brain, the part where our ideas originate.
b) They studied perceptual processes by which we organize things into wholes.
c) They were taught by a German psychiatrist, Professor Wilhelm Gestalt.
d) They studied perceptual illusions and how they influenced development.

Answers

Answer:

Explanation:

some researchers known as Gestalt psychologists because they studied perceptual illusions and how they influenced development under the principle of Gestalt psychology. Thus option D is correct.

what is Gestalt psychology?

Gestalt psychology is a thought process which is based on human mind and behavior, make a sense of the world around us and it suggests that we should not simply focus on every small component.

Gestalt psychology is holism, the school of psychology which has played a major role in the development of the study of human sensation and perception.

It helped to introduce the idea that human perception and heavily influenced by our motivations and expectations. Thus option D is correct.

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what contributes most of the biomass of the plants?
a) producers
b) herbivores
c) omnivores
d) carnivores

Answers

Producers, also known as autotrophs, are organisms that can produce their own food through photosynthesis or chemosynthesis.The correct answer is (a) producers.

In the case of plants, they use sunlight, water, and carbon dioxide to produce organic compounds such as glucose, which serves as their source of energy. This process allows plants to convert solar energy into chemical energy, forming the basis of the food chain.

Herbivores (b) are animals that primarily feed on plants, while omnivores (c) consume both plants and animals. Carnivores (d) are organisms that primarily feed on other animals. While herbivores, omnivores, and carnivores play important roles in ecosystems, they rely on producers for their energy and biomass.

Producers, such as plants and algae, are the primary source of biomass in most ecosystems, as they convert energy from the sun into organic matter that can be utilized by other organisms. The correct answer is (a) producers.

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Proteins in the plasma membrane are often the target of medicines. discuss why you think this is the case.

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Targeting the proteins in the plasma membrane does not require the drug taken up into the cell.

The cell membrane or plasma membrane is the outer covering of the cell. It is selectively permeable which does not allow every molecule to pass through it. It only allows some selective organic molecules to enter or exit through it. It, therefore, does not allow medications to pass thorough it or alter its chemical composition. Rather the medications target the proteins there to allow their functioning.

Plasma membrane proteins transmit the signals into the cell and catalyze reactions. The chemical composition of a drug is altered by the plasma membrane and a more acceptable form is produced to facilitate absorption by the desired organ. It also performs the distribution of drugs to various organs to produce the desired therapeutic effect.

Because not all drugs or medications are natural or organic molecules, they can't enter the cell. Therefore, any medication or drug targets the proteins in the plasma membrane.

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researchers established a number of cultured cell lines derived from different tumors. how might they determine which ones are malignant?
A) identify the ones with aberrant chromosome number of stucture
B) identify the ones with elongated cell cycles
C) identify the ones with elevated rates of apopotosis
D) identify the ones that grow in single layer in culture

Answers

The correct option is C; Identify the ones with elevated rates of apoptosis . The Differences Between Cancer and Normal Cells Cancer cells, for example, proliferate in the lack of signals urging them to.

Normal cells only develop in response to such signals. disregard signals that typically instruct cells to cease dividing or die (a process known as programmed cell death, or apoptosis). The clonal origin of cancer cells in a specific tumour is supported by observations showing all malignant cells have the same type of mutation, whether chromosomal or otherwise.

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How do you think our understanding of organisms would be different without the contribution and development or our current classification system? Do you think we would use this information about different organisms that we do now? Explain your reasoning.

Answers

Answer:

It is important to have a standardized system of classification so people can easily identify different things. It allows scientists to identify, name and group different organisms. It is important so scientists are able to easily communicate about different organisms without confusion.

It is necessary to classify organisms because: It helps in the identification of living organisms as well as in understanding the diversity of living organisms. Classification helps us to learn about different kinds of plants and animals, their features, similarities and differences

if Linnaeus had not developed the taxonomy system there would be no organized way of naming or categorizing new organisms in the scientific community and around the world. Instead, all organisms would be categorized differently in every part of the world, with different names.if Linnaeus had not developed the taxonomy system there would be no organized way of naming or categorizing new organisms in the scientific community and around the world. Instead, all organisms would be categorized differently in every part of the world, with different names.

Explanation:

Is the following statement true or false? The unfertilized human egg has half the number of chromosomes of that of the body cells.

Answers

Answer:

true

Explanation:

because it only has half chromosomes that body cells I know this we studied it in school.

A football team lost 14 yards on their first play then lost another 7 yards on the next play. what internet represents the total change in yards for the two plays?

Answers

Answer:

-21

Explanation:

Guessing autocorrect took "integer" and put in "internet"?

- 14 yards -7 yards = -21 yards

The Lubber grasshopper is a very large grasshopper, and is black in color with stripes. The color of the stripes exhibit incomplete dominance. Red stripes or yellow stripes may be expressed; however, when alleles are mixed, orange stripes are expressed. What will be the genotypic and phenotypic ratios be for the offspring of two parents that both have orange stripes.

Genotype: ______________________________
Phenotype: _____________________________

Answers

Explanation:

Let R be the allele for red stripes.

Let r be the allele for yellow stripes.

Parental phenotypes:

Orange stripes * Orange stripes

Parental genotypes:

Rr * Rr

Gametes:

(R)(r) * (R)(r)

Using a Punnett's Square, we get

F1 generation genotypes:

RR : Rr : rr = 1 : 2 : 1

F1 generation phenotypes:

Red : Orange : Yellow = 1 : 2 : 1.

which of the statements do you think best describes the way that base pairing stabilizes the double helix of dna?A., Shapes of complementary bases fit together like lock and key.
B., The arrangement of atoms allows precise hydrogen bonding.
C., Bases can pair as long as there are enough electronegative atoms.
D., Bases can pair as long as there are enough hydrogen atoms.

Answers

Option(B). is the statements describes the way that base pairing stabilizes the double helix of dna.

The phrase that best captures how base pairing stabilises the double helix of DNA is that the arrangement of atoms allows precise hydrogen bonding. Due to exact hydrogen bonds between particular base atoms (guanine and cytosine and adenine and thymine), the complementary base pairs (adenine and thymine) fit together. The two strands of the double helix are held together by hydrogen bonds that develop between the nitrogenous bases, specifically between the hydrogen atoms connected to the nitrogen atoms and the electronegative atoms (oxygen or nitrogen) in the complementary base. Although the lock and key metaphor from statement A can be a helpful approach to consider how the bases complement one another, it falls short of capturing the true nature of hydrogen bonding, which stabilises the double helix helix. Statements C and D are incorrect as they do not accurately describe the specific chemical interactions that occur between the complementary bases.

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see hint which of the following proteins are encoded by a typical bacteroides pul? choose all that apply. choose one or more: a. cytoplasmic enzymes for xyloglucan breakdown b. periplasmic enzymes to digest xyloglucan oligosaccharides c. xyloglucan binding proteins d. outer membrane oligosaccharide transporters e. outer membrane hydrolases that convert xyloglucans into oligosaccharides f. inner membrane xyloglucan transporters

Answers

All of the options mentioned (A, B, C, D, E, and F) could potentially be encoded by a typical Bacteroides PUL.

Bacteroides are a type of bacteria commonly found in the human gut that play an important role in breaking down complex carbohydrates, such as xyloglucans, which are commonly found in plant cell walls.

The breakdown of xyloglucans requires the action of a range of enzymes and proteins, including cytoplasmic enzymes for initial breakdown, periplasmic enzymes for further digestion, and outer membrane transporters and hydrolases for import and conversion of the oligosaccharides.

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Full Question: Feedback Which of the following proteins are encoded by a typical Bacteroides PUL? Choose all that apply Choose one or more:

A. outer membrane hydrolases that convert xyloglucans into oligosaccharides

B. periplasmic enzymes to digest xyloglucan oligosaccharides

C. cytoplasmic enzymes for xyloglucan breakdown

D. inner membrane xyloglucan transporters

E. xyloglucan binding proteins

F. outer membrane oligosaccharide transporters

what is the function of polar bodies in oogenesis

Answers

The main function of polar bodies is to provide a way for the egg cell to dispose of excess genetic material.

Polar bodies are small cells that are produced during the process of oogenesis, which is the formation of an egg cell in the female reproductive system. In this process, the egg cell goes through multiple rounds of division, leading to the formation of multiple cells, including the egg cell and polar bodies.

During the process of oogenesis, the egg cell undergoes a series of cell divisions called meiosis, which results in the reduction of the number of chromosomes in the cell by half. The first two polar bodies are formed during the first two meiotic divisions, and they contain the extra chromosomes that are not needed in the egg cell.

The polar bodies do not contribute to the development of the embryo, and they do not have the potential to develop into a full-fledged organism. Instead, they serve as a way to ensure that the egg cell has the right number of chromosomes and is capable of successfully fertilizing with a sperm cell to form a viable embryo.

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For a certain gene in a diploid organism, eight units of a particular protein product are needed for normal function and a normal phenotype. Each wild-type allele produces five units. If a mutation creates a null allele, will it be recessive or dominant to the wild-type allele

Answers

Due to the heterozygote's distinct phenotype from the wildtype homozygote, the mutation is not recessive to the wildtype allele.

The distinction between homozygotes and heterozygotes:

Homozygote: "an organism with identical pairs of genes with respect to any given pair of hereditary characters, and therefore breeding true for that character," is what it means to be a homozygote. To put it another way, it refers to an organism that possesses two copies of the same allele for a specific trait. indicating that it is certain to impart that quality to its offspring.

Homozygous: The term "relating to a cell that has two identical alleles for a particular gene at corresponding positions on homologous chromosomes" refers to both homozygous and its less common variant, homozygotic.

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We will amplify the LDHA cDNA (LDH-A protein coding sequence) from a cDNA library. Such a library is a large collection of DNA molecules representing the protein coding (mRNA) sequences of (theoretically) all genes significantly expressed in an organism/tissue of choice. How is a cDNA library made

Answers

A cDNA library is made by isolating mRNA molecules from a tissue or organism of interest and converting them into complementary DNA (cDNA) using an enzyme called reverse transcriptase.

The resulting cDNA represents the protein coding sequences of the genes expressed in the tissue or organism. The cDNA molecules are then cloned into a vector, which is a carrier molecule that allows for the replication and expression of the cDNA. The vector is introduced into bacterial or yeast cells, which are grown in culture to generate a large number of copies of the cDNA library. The resulting library contains millions of cDNA molecules, each representing a different mRNA transcript. The cDNA library can then be screened for specific genes of interest, such as the LDHA gene, by using a probe that hybridizes to the cDNA sequence.

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Photosynthesis takes in the __________ specifically in a green pigment called _________. In this process ______ gas is consumed along with ________ using __________ as an energy source; producing then a big molecule called ______________ and __________ gas as waste products.

Answers

Answer:

sunlight, chlorophyll,carbindioxide, water, sunlight, oxygen and glucose.

Answer:

sunlight, chlorophyll,carbindioxide, water, sunlight, oxygen and glucose.

Explanation:

Hope this helps

Which ion is a found in a glass of water

Answers

In a glass of water, the most common ion found is the hydroxide ion (OH-) and the hydrogen ion (H+).

These ions are formed when water molecules dissociate through a process called self-ionization or autoionization.

In a glass of water, several ions can be found, originating from the dissociation of water molecules. The main ions present are hydrogen ions (H+) and hydroxide ions (OH-), resulting from the self-ionization of water.

Water molecules can break apart spontaneously into equal concentrations of H+ and OH- ions through a process called autoionization. This occurs when a water molecule donates a proton (H+) to another water molecule, forming H3O+ (hydronium ion) and OH-.

Additionally, other ions might be present in a glass of water depending on its source. For example, tap water can contain various dissolved ions like calcium (Ca2+), magnesium (Mg2+), sodium (Na+), chloride (Cl-), and bicarbonate (HCO3-). These ions come from minerals and other substances present in the water source, such as groundwater or surface water.

It's worth noting that the specific ion composition of water can vary depending on factors like location, treatment processes, and water source. However, the fundamental ions present in water are H+ and OH- resulting from the autoionization of water molecules.

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Question
A statistical sample is part of a population taken to estimate a parameter or characteristic of the
entire population.
true or false ?

Answers

It would be true. Statistical sampling is drawing a set of observations randomly from a population distribution.

why does the alligator need water

Answers

Answer:

Water helps alligators in many ways but the big reason why they need water is it helps regulate their body temperature.

Answer:

they use water to hunt considering they can travel more quickly in the water and they are primarily freshwater animals

Explanation:

in modern systematics, species are organized into monophyletic groups based on their evolutionary relationships; that is, they are organized into blank . multiple choice question.

Answers

In modern systematics, species are organized into monophyletic groups based on their evolutionary relationships; that is, they are organized into clades.

Systematics is a branch of biology that deals with classification of organisms based on their species, genus or taxa, which represents their evolutionary relationships. A monophyletic group consists of members having common ancestral origin and all the descendants of that most recent common ancestor. It is same as cladistic grouping. It also has descendants of common ancestors. Identification of evolutionary relationships helps in understanding the anatomy of the extinct organisms, their development over time and how their features evolved to survive in the changing nature/ environmental conditions. Evolutionary biology seeks to explain the diversity of life and interpret the adaptations among the species. With time, the most fit species survived by the process of natural selection of best evolved species.

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Which of the following are pieces of evidence showing common ancestry among species?

Answers

Answer:

1. The pieces of evidence that support the theory of evolution include the following:

a. Fossil records/evidence

b. DNA of the organisms

c. Comparative anatomy

2. Whales have features that are similar to land mammals, such as the presence of hip bones and the need to breathe air. In this case, the whale fossils indicate that the modern whales that we see today have evolved from the land-dwelling mammals that existed 50 to 70 million years ago.

3. According to Darwin’s theory of evolution through the process of natural selection, the presence of a trait that is observed throughout the timeline of divergence of species is used as evidence that supports the idea that certain organisms share common ancestors.

In this case, comparative anatomy can provide the scientists the evidence that the organisms which share anatomical or structural similarities have common ancestry; hence, supporting the theory of evolution.

Explanation:

If a portion of the pancreas is surgically removed from a rat and the rat subsequently loses its appetite, one explanation is that the removed portion contains cells that secrete a chemical signal that somehow stimulates appetite. Given this scenario, what type of chemical signaling is occurring?.

Answers

The endocrine system is the proper reaction because it regulates the synthesis of insulin. The stomach surrounds the pancreas, a small, pear-shaped gland in the abdomen.

The pancreas is a tiny, pear-shaped gland in the belly that is encircled by the stomach. The pancreas is an endocrine organ that secretes the hormones glucagon and insulin as well as serves as an exocrine organ (secretes digestive enzymes). In the example question, the removal of the pancreatic part causes the rat to lose its appetite because the body's inability to produce insulin causes blood sugar levels to climb uncontrollably. This results in the body losing water through the urine, which reduces appetite.

Since the endocrine system controls the production of insulin, we can conclude that the Option endocrine is the appropriate response.

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Your question is incomplete. Please find the complete question below.

A) autocrine

B) paracrine

C) endocrine

D) neuroendocrine

A comparison of sexual and asexual reproduction is made by a group of students. Which statements accurately
support the argument that sexual reproduction is advantageous over asexual reproduction in many species? Select
all that apply.
A)
Sexual reproduction leads to greater mutation rate than asexual
reproduction
B)
C)
Sexual reproduction has a greater level of cell division than
asexual reproduction.
Sexual reproduction produces greater numbers of offspring than
asexual reproduction.
Sexual reproduction involves two parents which contribute
equally to the offspring's genetics.
Sexual reproduction involves meiosis and fertilization which
leads to increased genetic variation in the offspring.
D)
E)
Heredity and Reproduction

Answers

Answer:

D and E

Explanation:

Because two parents are involved, the rate of reproduction is lower in sexual reproduction, but it is beneficial to have increased genetic diversity in the offspring since the level of adaptations in phenotypes will be higher.

Hope it helped

The statements which accurately support the argument that procreation is advantageous over propagation in many species are given below:

Procreation involves two parents which contribute equally to the offspring's genetics.Procreation involves meiosis and fertilization which leads to increased genetic variation in the offspring.

What do you mean by Species?

Species may be defined as a group of organisms that can reproduce naturally with one another and create fertile offspring.

Due to the involvement of two parents, procreation increases the genetic diversity among organisms.

In procreation, clutch size is low but parental care is high. It means that this type of reproduction does not produce a large number of offspring.

Therefore, it is well described above.

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Gel electrophoresis separate the DNA passed on what

Answers

Gel electrophoresis separates the DNA passed on an electrical current (pole negative to pole positive).

What is electrophoresis?

Electrophoresis is a specific technique used in molecular biology laboratories to separate biomolecules.

In electrophoresis, these biomolecules (e.g. DNA) are separate according to their electrical charges.

In conclusion, gel electrophoresis separates the DNA passed on an electrical current (pole negative to pole positive).

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during the second half of glycolysis, what occurs?

Answers

Answer:

Glucose becomes fructose. ATP is made during the second half of glycolysis . ;)

Explanation:

The purpose of learning about cell transport is to understand how cells *

a) move things into the cell

b) move things out of the cell

c) respond to stimuli

d) maintain homeostasis

:)

Answers

Answer:

The first cultures in New Mexico ___________________.

developed a series of ancient roads.

were hunters and gatherers.

built multistoried houses from adobe.

were primarily farmers.