Although scientists do not know the exact origin of eukaryotic cells, the ______ theory does explain the origin of the mitochondria and chloroplasts.

Answers

Answer 1
Answer: The Endosymbiotic theory

Explanation:

The Endosymbiotic Theory states that the mitochondria and chloroplast in eukaryotic cells were once aerobic bacteria (prokaryote) that were ingested by a large anaerobic bacteria (prokaryote). This theory explains the origin of eukaryotic cells.


Related Questions

what do the letters in the acronym pmat stand for?

Answers

PMAT may refer to:
Four phases of mitosis: prophase, metaphase, anaphase, and telophase

PMAT acronym stand for four phases of mitosis prophase, metaphase, anaphase, and telophase.

What is PMAT?

PMAT has been known as an acronym that is used for a transporter protein Plasma membrane monoamine transporter as well as the four stages of the mitosis cell cycle. On the basis of the reference given in the form of an image, it is most like the four stages of mitosis are Prophase, Metaphase, Anaphase, and Telophase.

Prophase is the first stage of mitosis and followed by the metaphase, anaphase, and ends with telophase. Telophase is followed by cytokinesis. On the basis of the reference given in the form of an image, it is most like the four stages of mitosis are Prophase, Metaphase, Anaphase, and Telophase.

Therefore, PMAT acronym stand for four phases of mitosis prophase, metaphase, anaphase, and telophase.

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a student is investigating cellular transport. what will most likely occur when the student places a cell that is 95% water inside of a solution that is 100% water?

Answers

Cellular transport refers to the flow of substances into or out of the cell across the cell membrane.

When the student places a cell that is 95% water inside of a solution that is 100% water, the cell will achieve net movement and if water continues to enter, it swells up and burst.

When a cell is placed in a hypotonic solution, water flows into the cells and the cell gains volume until it achieves equilibrium. But if water continues to flow in afterwards, it swells up and burst.

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Earth is a ____ system, so the amount of carbon stays relatively constant over time.

Answers

Answer:

Carbon

Explanation:

What is the first indication of a Tsunami?

Answers

GROUND SHAKING, a LOUD OCEAN ROAR, or the WATER RECEDING UNUSUALLY FAR exposing the sea floor are all nature's warnings that a tsunami may be coming.

Answer:

Ground shaking or loud ocean roar

predict the average number of different trna molecules that can be recognized by a single type of aminoacyl trna synthetase.

Answers

Answer: Each tRNA is charged with a particular amino acid at its 3' end. Although there are 61 codons in the universal genetic code that specify amino acids, most organisms posess fewer than 45 different tRNAs.

Explanation:

Homeostasis is necessary for a cell to survive. What is the definition of homeostasis

Answers

Answer:

Homeostasis is the process of maintaining a constant internal environment suitable sustaining life.

Homeostasis continues to maintain ideal environment for enzyme action and all cell functions throughout the body.

Why homeostasis is necessary?

It is the preservation of a constant internal environment in the face of changing internal and external conditions. These include blood glucose concentration control in the human body.

A series of control mechanisms at the organ, tissue, or cellular level maintain homeostasis.

Substrate supply, activation or inhibition of individual enzymes and receptors, enzyme synthesis and degradation, and compartmentalization are examples of control mechanisms.

The liver, pancreas, kidneys, and brain (hypothalamus, autonomic nervous system, and endocrine system) all contribute to homeostasis.

The liver is in charge of metabolizing toxic substances and maintaining carbohydrate metabolism with pancreatic signaling.

Thus, homeostasis is necessary for a cell to survive.

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if you have been to a beach for a whole day, then you have seen tides roll in and out. What causes
Earth's high tides?

Answers

Answer:

The Moon

Explanation:

High tides and low tides are caused by the moon. The moon's gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the moon and the side farthest from the moon. These bulges of water are high tides.

Answer:

it's caused by the gravitational  forces from the moon.

Explanation:

grew up at the beach

hope this helps

there are many kinds of organisms in kingdom protista. which organism is in kingdom protista?

Answers

Protist contains eukaryotic organisms wIth unicellular and simple multicellular organisms. These are mostly aquatic. This kingdom contains diverse group of organisms Eg: Animal like protist called protozoa i.e amoeba, Plant like protists called algae i.e euglena, and fungi like protists i.e slime molds

Please help will give brainly

Answers

Answer:

4 meters

Explanation:

Which reactanat makes cellular respiration more efficient than fermentation when making ATP?

a
Oxygen
b
Glucose
c
Water
d
Carbon Dioxide

Answers

Answer: glucose I think?

Explanation: I’m not sure but it should be more efficient.

people who have come back from being legally declared dead. what was your experience

Answers

my friend told me that one his friend uncles was in a car crash not in a bad one but it did send his uncle flying it hit his head and there was alot of blood people thought he was dead but after like a few hours in the doctor he just opened his eyes but still couldnt move

What are three organs that could be part of a mollusk respiratory system?

Answers

1. Gills or ctenidia
2. Mantle cavity
3. Pulmonary sac

7. Where do the light-dependent reactions take place?

Answers

Answer:

in the chloroplasts I think that's how u spell it

List two diseases that are the result of a viral
attack on the human nervous system.

Answers

Answer:

rabies , Tick-borne encephalitis

Explanation:

Answer:

look at the bottom

Explanation:

Acute - the most common diseases caused by acute viral infections are encephalitis, flaccid paralysis, aseptic meningitis, post infectious and encephalomyelitis.

Most of the aerobic respiration of a cell takes place in which structure?
A chloroplast
B lysosome
C vacuole
D mitochondria

Answers

I believe it’s A in the question

Question 1 (1 point)
Which of the following explains how density dependent factors can
slow population growth?
There are more births in the population.
There are more deaths in the population.
There are more births and deaths in the population.
There are fewer births and deaths in the population.

Answers

More deaths the second one is the right answer good luck

I really need helppppp

Answers

Mitochondria - multicellular
Cytoplasm - eukaryotic cell
Organism - unicellular
The “”Mitochondria”” is the powerhouse of the cell

The relatively large number of new mutations that occur in the human genome in each generation is tolerable because: ______________

a. humans have excellent protein repair mechanisms.
b. compared to other organisms, changes in human proteins have relatively small effects on their cells' structures and functions.
c. humans have excellent DNA repair mechanisms.
d. most of the human genome is noncoding DNA, so few mutations affect human proteins.
e. most of the mutations occur in somatic cells, not germ cells.

Answers

Answer:

The believe the correct answer is option E.

The relatively large number of new mutations that occur in the human genome in each generation is tolerable because: most of the human genome is noncoding DNA, so few mutations affect human proteins. Therefore, the correct option is D.

What is a human genome?

A human genome refers to the complete set of sequences of the nucleic acids that are present in the humans. The human genome contains a relatively large amount of noncoding DNA, which does not code for proteins and is therefore less subject to selective pressures.

Option A, humans have excellent protein repair mechanisms, and Option C, humans have excellent DNA repair mechanisms, are partially true, but do not fully account for the tolerability of new mutations in the human genome.

Option B and E are also not true, as changes in human proteins have relatively small effects on their cells' structures and functions, is not entirely true. Therefore, the correct option is D.

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Which Kingdom does not contain a cell wall?

help me pleasee

Answers

Answer:

Protista Protists

Explanation:

Protista. Protists are single-celled and usually move by cilia, flagella, or by amoeboid mechanisms. There is usually no cell wall, although some forms may have a cell wall.

I ACCIDENTLEY SCREAMED PRETTY GAY

Answers

Answer:

.

Explanation:

Answer:hahahahah really why thats so funny

Explanation:

Define photosynthesis?​

Answers

Answer:

PROCESS BY WHICH PLANTS MAKE THEIR OWN FOOD WITH THE HELP OF WATER, MINERAL , CHLOROPHYLL CARBON DIOXIDE IN THE PRESENCE OF SUNLIGHT IS CALLED PHOTOSYNTHESIS.

I HOPE IT IS HELPFUL

The lipid that makes up most of the lipids in our body is: Group of answer choices lecithin triglyceride phospholipid cholesterol

Answers

Answer:

triglyceride

Explanation:

the most common lipid.

what would happen if cells with mutated dna replicated

Answers

Answer: Incorrectly paired nucleotides that still remain following mismatch repair become permanent mutations after the next cell division.

Explanation: If they replicated than the entire thing would copy that and would be permanent.

The enzyme that builds the complimentary strand during replication.
helicase
replicase
polymerase
synthase

Answers

Answer:

polymerase

Explanation:

It wraps itself around a polynucleotide strand and attaches new nucleotides to the exposed nitrogenous bases

Name 3 things that come from decayed plants, are fossil fuels, and release carbon dioxide when they are burned.

Answers

Answer:

carbon cycle, neutral, and decomposition

Carbon cycle , neutral , decomposition

Compare the four types of cells animal, plant, protest, bacteria, what structures do they have in common

Answers

Answer:

They all have cytoplasm and cell membrane

That's all that I could find

How do gravity work?

Answers

Answer:

Gravity makes the Earth constantly pull us down. ... The force of gravity depends on the mass (weight) of each object. The force with which two objects attract each other is proportional to their mass and decreases rapidly the moment we separate them.

Explanation:

hi i'm mexican long live mexico

Answer:

the closer objects are to each other, the stronger their gravitational pull is. Earth's gravity comes from all its mass. All its mass makes a combined gravitational pull on all the mass in your body.

Explanation:

The light-dependent reactions change _____ in to the molecules _____ and _____.

Answers

light energy i think?????

Which is mixed with proteins to break them into amino acids?

Answers

Answer:

enzymes can breakdown proteins into amino acids

Answer: hydrochloric acid and enzymes called proteases break it down into smaller chains of amino acids

Explanation:

When you sit in a chair, it exerts_____

against you.

Answers

Answer:

When you sit in your chair, your body exerts a downward force on the chair and the chair exerts an upward force on your body. There are two forces resulting from this interaction - a force on the chair and a force on your body.

Explanation:

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