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Musya8 [376]
3 years ago
5

In cellular respiration, where do the high-energy electrons that move through the electron transport chain originate?

Biology
2 answers:
Scorpion4ik [409]3 years ago
8 0

Answer: The correct answer is -

B) NADH and FADH2.

NADH and FADH2 are electron carriers that provide electrons, which move across four protein complex (Complex I to complex IV) in the inner mitochondrial membrane.

These are high energy electrons and ultimately help in the generation of large amount of energy in the form of ATP.

The flow of electrons across protein complex leads to change in shape their shapes, due to which protons are pumped across the inner membrane ( that is from mitochondrial matrix to the intermembrane space).

As a result, a concentration gradient of Hydrogen ions is formed across the membrane.

By diffusion, the hydrogen ions travel back through a special channel called ATP sythase. This channel utilizes the energy of the flow of the Hydrogen ions to form ATP.

ELEN [110]3 years ago
7 0
B) NADH & FADH2 are the high-energy carries, by which hydrogens were transferred through the process of ETC.
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The true statement about the relationship between true moss sporophytes and gametophytes is: (d) Sporophytes are parasites of gametophytes.

Sporophyte is the part of the life cycle in plants where the plants are asexual and in diploid phase of their life. The plants produce spores during this stage. In vascular plants sporophyte is the dominant stage of life.

Parasites are the organisms that live inside or outside an organism and depend upon that organism for their food as well. Apart from extracting food, the parasites also provide some kind of harm to the host they live in. Sporophytes are called parasites because they directly developed from the fertilized egg in archegonia.

The given question is incomplete, the complete question is:

Considering that the mature sporophytes of true mosses get their nutrition from the gametophytes on which they grow, and considering these generations as individual plants, what is true of the relationship between true moss sporophytes and gametophytes?

a. Sporophytes are endosymbionts of gametophytes.

b. Sporophytes are mutualists of gametophytes.

c. Sporophytes are commensalist of gametophytes.

d. Sporophytes are parasites of gametophytes.

To know more about sporophyte, here

brainly.com/question/14704196

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Which ecosystem is more healthy, tundra, grassland, or desert? why?
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Canis represents the genus   :D

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Vapor is your answer my friend

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