BIOLOGY HIGH SCHOOL

Which event occurs in photosystem I? A. Water molecules are broken apart B. Light energy excites electrons C. Oxygen is released as waste D. Electrons are transferred to ferredoxin

Answers

Answer 1
Answer: I think the correct answer from the choices listed above is option D. The event that happens in photosystem I is that electrons are transferred to ferredoxin. This is a part of photosynthetic light reactions which makes use of light energy to transfer electrons from plastocyanin to ferredoxin.
Answer 2
Answer:

from the choices listed above is option D.

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DOES ANYONE KNOW THIS ANSWER PLEASE
A ridge of till located at the farthest point reached by a glacier is called a
Why is hydroquinone used in one of the experiments in the lab?

The most significant characteristic of sexual reproduction is _____.

Answers

hello, 
The most significant characteristic of sexual reproduction is the fact that the offspring's traits/ characteristics are not identical to the parents' traits. So, there is a variety of looks and traits passed down. 
Hope that this would help you! =)

Which is an example of pleiotropy?

Answers

phenylkefonuria, a human disease that affects multiple systems but is caused by one gene defect

Answer:

occurs when one gene influences two or more seemingly unrelated phenotypic traits.

Explanation:

thats just what i read so i hope this helps

Bats and hummingbirds are examples of

Answers

Both Hummingbirds and Bats are pollen collectors.
Hope this helped. :3

How many electrons are in the outer energy levels of the highlighted group of elements

Answers

Where is highlighted group?

btw, you can calculate that by the number of group, it would be equal to that...

where is the highlighted group?

Why is a uranium isotope often used rather the 14C in radiometric dating to determine the age of Earth?

Answers

because it gives a accurate age of rocks and other things found in the earth

Answer:

carbon 14 half life is in the thousands of years while uranium is many millions of years

Which of these processes is an example of hydrolysis? A) conversion of glucose units into starch B) conversion of fructose and glucose units to form sucrose C) conversion of cellulose into glucose units

Answers

Answer:

The correct answer will be option-C.

Explanation:

Hydrolysis is a type of chemical reaction where a water molecule is utilized or consumed to rupture the chemical bonds. In these reactions, water acts as a nucleophile and separate the larger molecules into its components.

In the given question, the process of cellulolysis or the breakdown of cellulose to smaller polysaccharide like cellodextrins or glucose units is a hydrolytic reaction.  This reaction requires an ionic solvent as cellulose molecules bind strongly to each other and cellulolysis Is difficult.

Thus, Option-C is the correct answer.

The processes is an example of hydrolysis is conversion of cellulose into glucose units. The answer is letter C. Conversion of glucose units into starch and conversion of fructose and glucose units to form sucrose are not processes of hydrolysis.
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How many and what type of chromosomes would be expected in a karyotype of a human male? (1 point) 22 pairs of autosomal chromosomes and 2 Y chromosomes 23 pairs of autosomal chromosomes and 2 Y chromosomes 22 pairs of autosomal chromosomes, 1 X chromosome, and 1 Y chromosome 23 pairs of autosomal chromosomes, 1 X chromosome, and 1 Y chromosome
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What type of pressure system is represented by the L on this map, and what kind of weather is a likely result?A. high pressure; cloudy or rainy weather B. high pressure; sunny weather C. low pressure; sunny weather D. low pressure; cloudy or rainy weather