answer.
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
pychu [463]
1 year ago
6

With the endosymbiotic hypothesis in mind, what structure within modern-day chloroplasts is likely derived from the cytoplasm of

an ancestral cyanobacterium that took up residence within a eukaryotic cell?
Biology
1 answer:
777dan777 [17]1 year ago
4 0

Inner membrane of the chloroplasts

Explanation:

The present day eukayrotes are all considered to be derived from its original ancestor – the cyanobacteria.

Earlier, photosynthesis by the first photoautotrophs took place utilizing hydrogen sulphide as the electron donor. However, it was later when the cyanobacteria, which were originally residing in the mitochondria of an eukaryotic cell under an endosymbiotic relationship, developed into true chloroplasts, the use of water as electron donor to perform photosynthesis began.  

The cyanobacteria were aerobic in nature and required oxygen to survive. They evolved the chloroplasts covered with an external protective membrane and an internal membrane. It is the internal membrane which contains all the necessary organelles or components necessary for photosynthesis like thyllakoids, stroma etc which helped them to utilize water as an electron donor during photosynthesis like all the eukaryotes.  

You might be interested in
The broadest way to classify the nervous system is to differentiate between the ______ nervous systems.
ankoles [38]

Answer:

Central and Peripheral

Explanation:

The nervous system is divided into two parts: the central nervous system and the peripheral nervous system. The central nervous system includes the brain and spinal cord.

On the other hand the peripheral nervous system includes all of the nerves that branch out from the brain and spinal cord and extend to other parts of the body including muscles and organs. Each part of the system plays a vital role in how information is communicated throughout the body.

The below diagram provides a schematic view of the role of each sub-division  of the Nervous System.

4 0
2 years ago
What are similarities and differences between the organization and structure of DNA in bacterial cells and in human cells?
Ilia_Sergeevich [38]
Both human and bacteria cells contain DNA and both have a outer membrane that controls how materials come into and leave the cell.

Predominantly multicellular not in bacteria but in human body

*Cell contains a nucleus and other membrane bound organelles not in bacteria but in human body..

*DNA occurs in a circular form* in bacteria only..

* Ribosomes size in bacteria 70s and in human body 80s

*Capable of growth at temperatures greater than 80 C only in bacteria

*His tone proteins present in cell only in human body cells

* Operons present in DNA only in bacteria..
5 0
1 year ago
you go out to dinner with your best friend. during dinner you consume the following meal: spinach green with sunflower seeds, a
Georgia [21]

Answer:

The biology Molecules that will.be present in what she consumed are Carbohydrates from unbuttered bread, vitamins green spinach, Fat and oil or lipids from sunflower seeds, proteins...

The Carbohydrates is processed into glucose, proteins is processed into amino acids, lipids is processed into fatty acids and glycerol.

Explanation:

From the food consumed, The biology Molecules that will.be present in what she consumed are Carbohydrates from unbuttered bread, green spinach contains vitamins like vitamin K, vitamin A, vitamin C, vitamin B12 , minerals like magnesium, iron, Fat and oil or lipids from sunflower seeds, proteins...

The Carbohydrates is processed into glucose after enzymes like salivary amylase acts on it from the chewing and in the stomach which produces glucose which makes it easily absorbable , proteins is processed into amino acids by the activity of hydrochloric acids and protease that processed it into amino acids, lipids is processed into fatty acids and glycerol by the activities of the enzymes lipase.

The minerals and vitamins present are in a way they can be absorbed.

8 0
2 years ago
When potatoes are in the ground, do they swell when it rains?
NemiM [27]
Potatoes do not swell when it rains. When it rains the potatoes absorbs water mostly through its roots. 
7 0
2 years ago
Read 2 more answers
Which of the following is true concerning the number and type of permanent teeth? Which of the following is true concerning the
jarptica [38.1K]

Answer:

There are 32 permanent teeth, and the wisdom teeth are the last to emerge.

3 0
2 years ago
Other questions:
  • identify the missing numbers below to show the result of multiplying the numbers. (3.5 × 1016)(2.2 × 1010) = a × 10b
    11·2 answers
  • In which macromolecule will she use the black, red, and purple balls in a ratio of 1:2:1? carbohydrates lipids nucleic acids pro
    11·2 answers
  • To test how fertilizer affects aquatic animals, a student prepared four identical containers with water fleas. The student then
    13·2 answers
  • In humans, sperm can survive _____ within the female reproductive tract.view available hint(s)in humans, sperm can survive _____
    6·1 answer
  • Ions can travel directly from the cytoplasm of one animal cell to the cytoplasm of an adjacent cell through _____.
    5·1 answer
  • What acts as a source of heat in the mantle and results in mantle convection?
    7·2 answers
  • What three conditions did the earliest bacteria need for energy production?
    11·2 answers
  • DNA polymerases are capable of editing and error correction, whereas the capacity for error correction in RNA polymerases appear
    9·1 answer
  • Why is the average annual high temperature in Cape Hatteras, NC higher than the average annual high temperature in Monterey, CA?
    12·2 answers
  • Think of an example from your own life such as school, sports, or an extracurricular activity. Develop an analogy to explain why
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!