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Vitek1552 [10]
1 year ago
15

Why do the polypeptides made in prokaryotes always contain formyl methionine as the first amino acid?

Biology
1 answer:
slega [8]1 year ago
3 0

Answer:

The initiator tRNA adds formyl methionine first.

Explanation:

i just took the quiz and it was right :)

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Members of which phylum establish a successful symbiotic relationship with the roots of trees?
Alchen [17]

Answer:

The correct answer is Glomeromycota

Explanation:

Arbuscular mycorrhizae are characterized by the formation of unique structures, arbuscles, coils and vesicles of fungi of the phylum Glomeromycota. They are a type of endomicorrhiza in which the fungus penetrates the cortical cells of the roots of a vascular plant.

In this symbiotic association, the fungus helps the plant to capture nutrients such as phosphorus, sulfur, nitrogen and soil micronutrients. It is believed that the development of symbiosis with arbuscular mycorrhizae played a crucial role in the initial colonization of the earth by plants and in the evolution of vascular plants.

This symbiosis is a highly evolved mutualistic relationship found between fungi and plants.

8 0
3 years ago
Convert 10,095m/s to miles/s
klemol [59]
It gives me 22581.872
5 0
2 years ago
I REALLY NEED HELP ASAP. PLEASE BE SERIOUS AND SO NOT JUST TAKE THE POINTS. I WORKED HARD FOR THEM AND FOR ONCE I HAVE A QUESTIO
GaryK [48]

Answer:

1-pacific plate

2-south America plate

3-nouth America plate

4-eurasian plate

8-juan de fuca plate

11- Caribbean plate

14-philipine plate

Explanation:

8 0
3 years ago
A scientist is using a species of green algae to study the electron transport chain in photosynthesis. He uses a laser to inacti
jeka94

Answer:

D) In case 1, both PS I and PS II completely lose function; in case 2, a proton gradient is still produced.

Explanation:

The light dependent reaction of photosynthesis, which produces the ATP and NADPH needed in the light independent stage of the process, includes complexes of proteins and pigments called PHOTOSYSTEMS. These photosystems (I and II) are key to the functionality of the light dependent reactions in the thylakoid.

The major pigment present in both photosystems is CHLOROPHYLL A, which absorbs light energy and transfers electrons to the reaction center. Chlorophyll B is only an accessory pigment meaning it can be done without. Hence, if all of the chlorophyll A is inactivated in the algae but leaves chlorophyll B intact as in case 1, both PS I and PS II will lose their function because Chlorophyll A is the major pigment that absorbs light energy in both photosystems.

In case 2, if PS I is inhibited and PS II is unaffected, a PROTON GRADIENT WILL STILL BE PRODUCED because the splitting of water into protons (H+) and electrons (e-) occurs in PSII. Hence, H+ ions can still be pumped into the inner membrane of the thylakoid in order to build a proton gradient even without the occurrence of PS I.

3 0
3 years ago
What three human systems interact when you are exercising?
ale4655 [162]

Answer: The respiratory system, the circulatory system, and the muscular system

Hope this helps :)

4 0
2 years ago
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