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Marianna [84]
3 years ago
8

How do electrons gain energy in photosystem 1?

Biology
2 answers:
irina1246 [14]3 years ago
6 0
They absorb photons from sunlight
Roman55 [17]3 years ago
5 0

Answer:

They  absorb photons

Explanation:

You might be interested in
Which defense mechanism underlies all other defense mechanism? rationalization. repression. reaction formation. regression.
timurjin [86]

Answer:

Repression

Explanation:

Repression, which is keeping to ones self disturbing thoughts.  It is a form of defence mechanism that underlies all other defence mechanisms

3 0
3 years ago
Suppose i needed to measure exactly 15.0 mL of water for an experiment. Which graduated cylinder would be the best one to use, a
attashe74 [19]

Answer:

A test tube would be used

Explanation:

The test tube refers to a laboratory device that is made of graduated glass for which cylinder used to measure small quantities of liquids that is from 5 mL to 2 L. The most suitable type of specimen must be chosen for measuring the liquid volume, in this situation that is a 15 mL. The specimen is shutdown to lower and has a support base.

Therefore the correct answer is a test tube.

7 0
3 years ago
1.) Arteries and Veins colored red carry what type of blood? (Oxygen Rich/ Oxygen Poor)
Luden [163]
Hemoglobin is a molecule with a central iron atom responsible for carrying oxygen in your blood cells, as a result, when an oxygen atom bonds to the iron atom, hemoglobin causes the blood to appear bright red (think of it like iron rusting due to exposure to oxygen).

Veins appear blue due to how light reflects off of the various tissues but our blood is NOT blue when it isn't exposed to oxygen.

Arteries have oxygen-rich blood and veins have oxygen-poor blood. Veins carry blood toward the heart and arteries carry blood away from the heart. You can remember this easily because our cells need oxygen and, because arteries carry oxygen-rich blood, they are responsible for carrying blood away from the heart to the different parts of our bodies.

Veins carry the oxygen-depleted blood back toward the heart so it can become oxygen-rich again.
3 0
3 years ago
Genetic codes contain____ (Select all that apply.)
Yuki888 [10]

Answer:

- complex info; detailed instructions

genetic codes contain complex information; detailed instructions

Explanation:

The genetic code is a set of rules by which information encoded in the genetic material (DNA or RNA sequences) is translated into proteins (amino acid sequences) by living cells.

-The genetic code consists of 64 triplets of nucleotides. these triplets are called codons. With three exceptions, each codon and codes for one of the 20 amino acids used in the synthesis of proteins. that produces some redundancy in the code: MuscleTech amino acids being encoded by more than one codon.

8 0
4 years ago
How could something as complex as the human eye or the octopus eye have evolved by natural selection?
Fudgin [204]
Do you know , human eye and octopus eye are example of convergent evolution ! origin of both are different way but both works the same way, function of both are same !
4 0
4 years ago
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