1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
belka [17]
3 years ago
10

According to the theory of endosymbiosis How did cells acquirenhow did cells acquire chloroplast

Biology
1 answer:
stira [4]3 years ago
7 0

According to endosymbiotic theory, the chloroplast evolved as a result of engulfment and assimilation of a Cyanobacteria by an eukaryotic cell.

Explanation:

  • Endosymbiotic theory supports the view that ceratain organelles of the eukaryotic cell evolved as a result of engulfment of single celled organism.
  • Evidences  that support this theory is the presence of organellar DNA.
  • It is assumed that Mitochondria evolved as a result of engulfment and assimilation of an aerobic prokaryote while Chloroplast evolved due to engulfment and assimilation of a photosythetic prokaryote by an Eukaryote.
  • After the engulfment ,these organisms however escaped the phagocytosis and began to benefit the eukaryotic Host.
  • Soon it lost many of its Genes to the eukaryotic nucleus and became dependent on the Host.
  • Thus a symbiotic association was established between the prokaryote and the host.Giving rise to cell organelles.
You might be interested in
does a cross bridge in a sarcomere of a fast fiber produce the same amount of forces as a cross bridge in a sarcomere of a slow
Zolol [24]

Answer:

Cross bridge in a sarcomere of a fast fiber produce higher amounts of force as compared to a cross bridge in a sarcomere of a slow fiber

Explanation:

When a muscle contracts, a cross bridge is formed between actin and myosin. The sarcomere shortens when a muscle contracts by reforming cross bridge. In general a muscle fiber is of three types – a) slow, b) Fast and c) intermediate.  

The sarcomere of fast fiber generates high force but for a short period of time. On the other hand, sarcomere of slow fiber generate lower amounts of force but this force lasts for a longer period of time. Due to this difference, fast fibers are the predominant fibers in the body

5 0
3 years ago
Circle the letter of each sentence that is true about carbohydrates.
irina [24]
A, b , and c are true. The monomer of sugar polymers is monosaccharides
7 0
2 years ago
Explain why you can see the Moon.<br><br><br> Science
Ghella [55]

Answer:We see the Moon because sunlight reflects back to us from its surface. During the course of a month, the Moon circles once around the Earth. If we could magically look down on our solar system, we would see that the half of the Moon facing the Sun is always lit. But the lit side does not always face the Earth. As the Moon circles the Earth, the amount of the lit side we see changes. These changes are known as the phases of the Moon and it repeats in a certain way over and over.

Explanation:

3 0
3 years ago
How would you expect mr helms vital signs and respiratory and kidney functions to change after valve replacement surgery?
vovangra [49]
I’m going on ia oi oo one of y’all day I is
7 0
3 years ago
Which of the following is an organic molecule?
Ymorist [56]

Answer:

H2O

Explanation:

H2O is water. Water is organic, but I'm not 100 percent sure this is right.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which are the characteristics of a maritime polar air mass?
    12·1 answer
  • Help with these five questions anyone it would be very helpful?
    7·1 answer
  • Paralysis is a term used to describe the loss of muscle function. if tetrodotoxin's effect is on neurons, why did dr. westwood e
    15·1 answer
  • Which of the following resources is nonrenewable?
    10·2 answers
  • Which of the following is a characteristic that could be applied to both living and nonliving things
    14·1 answer
  • All of the cells in this potato plant have the same DNA. Which of these would best describe why the cells differentiate into dif
    13·2 answers
  • What are the three types of energy transfer that happen in the atmosphere of the earth? Mark all that apply.
    10·2 answers
  • HELP!! Which of the definitions below best defines anthropogenic?
    6·1 answer
  • which of the following is not a condition that must be made for hardy-weinberg equilibrium 1.no mutation 2.no migration 3.domuna
    5·1 answer
  • Architecture and Construction Workplaces and Tasks Multimedia Presentation Instructions Click the links to open the resources be
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!