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MAVERICK [17]
3 years ago
13

in photosynthesis, electrons that travel through the electron transport chain in the thylakoid membrane come from ?

Biology
1 answer:
Masja [62]3 years ago
5 0

Answer:

water molecules

Explanation:

In photosynthesis, electrons that travel through the electron transport chain in the thylakoid membrane come from water molecules.

Water molecules supply electrons for electron transport in photosynthesis.

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What would be the expected result if a competitive, nonhydrolyzable analog of ATP were applied to the cytoplasmic side of a plas
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Answer:

The cell interior would experience higher than normal Na+ concentrations and lower than normal K+ concentrations.

Explanation:

Na+/K+ ATPase exists in two forms: Its phosphorylated form has a high affinity for K+ and low affinity for Na+. ATP hydrolysis and phosphorylation of the Na+/K+ pump favor the release of Na+ outside the cell and binding of K+ ions from the outside of the cell. Dephosphorylation of the pump increases its affinity for Na+ and reduces that for K+ ions resulting in the release of K+ ions inside the cells and binding to the Na+ from the cells.  

The presence of ATP analog would not allow the pump to obtain its phosphorylated form. Therefore, Na+ ions would not be released outside the cells. This would increase the Na+ concentration inside the cell above the normal. Similarly, the pump would not be able to pick the K+ from the outside of the cell resulting in reduced cellular K+ concentration below the normal range.  

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What kinds of organisms require telomerase?
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saveliy_v [14]

Ferromagnesian minerals are minerals that have iron or magnesium in their structure. The greater specific gravity is between 3.2 and 3.6. Some examples are pyroxene, biotite, garnet, and olvine.

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3 0
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What is the layer of stem cells that constantly divide to renew the epidermis?
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