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Misha Larkins [42]
3 years ago
9

At which part of the respiratory system does oxygen enter the bloodstream

Biology
1 answer:
zalisa [80]3 years ago
4 0
<span>from the alveoli. it is a little sac in the lungs.</span>
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Why does darkness affect the light-independent reactions of photosynthesis?
notsponge [240]

Answer:

The correct answer would be Light independent reactions require the energy gathered in the thylakoids.

Photosynthesis can divided into two sub-processes or reactions:

Light-dependent reaction: It converts solar energy into chemical energy that is, ATP (adenosine triphosphate) and NADPH with the help of photolysisis of water. It takes place in thyllakoid membrane of the chloroplast.

Light-independent reaction: It fixes carbon obtained from carbon dioxide into the food or glucose with the help of enzyme RuBisCO (Ribulose-1,5-bisphosphate carboxylase/oxygenase).

It takes place in the stroma of the chloroplast and does not require the involvement of light however, it requires the products (ATP and NADPH) of the light reaction.

Fixation of 1 molecule of glucose requires 6 molecules of carbon dioxide, 9 molecules of ATP and 6 molecules of NADPH.

So, darkness indirectly affects the light-independent reaction.

5 0
3 years ago
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Electrons spin in shells around the nucleus. The closest shell (n = 1) can contain a maximum of____
ankoles [38]

Answer: 2 electrons

Explanation:

The inner shell (1st shell) can hold 2 electrons, the next shell can hold 8 electrons and the third shell can hold 18 electrons.

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3 years ago
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Which of the following are independent
sesenic [268]
The second and third one I believe
3 0
3 years ago
Which phase of the cell cycle is typically the longest phase?
vova2212 [387]
The longest phase of the cell cycle would be interphase
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Determine the number greater than 19 and less than 34 that is divisible by 6 and 10. (1 point)
aev [14]

Answer:

30

Explanation:

Its 30 because 30 is divisible by 10 and 6.

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6 0
1 year ago
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