BIOLOGY HIGH SCHOOL

When light energy excites electrons in photosystem II, where do the electrons to replace them come from?

Answers

Answer 1
Answer: the electrons are already there in photosystem II, they are just in a cloud that is around the positive nucleus! 

Related Questions

Which method would allow you to study the behavior of a tiger in its native habitat in India?
Community interactions includea. predation. b. competition. c. symbiosis. d. all of the above.
What's the most vital function of earths magnetic field ?
Which of these valves prevents a backflow of blood into the left atrium?aortic valve tricuspid valve mitral valve
The United States Arctic National Wildlife Refuge is a large portion of Alaska that is protected from construction, which would affect the land and resources that are available to living things. Which term is used to describe all the species that live in the Arctic National Wildlife Refuge?

Which of the following statements is true of staphylococcal toxin? a. The toxin is produced by Salmonella. b. The toxin is heat resistant and remains hazardous even after heating. c. The toxin is present mainly in improperly canned food. d. The toxin is not hazardous to humans. e. The toxin only affects infants.

Answers

Answer: The correct answer is B

Explanation: There are many different types of this bacteria, all of which are heat resistant. Heat can kill the bacteria itself, but it does not kill the toxin which in return can still cause a sickness.

What happened to the number of aquatic species as a result of the restoration activities in sudbury?

Answers

The best answer to this biology and ecology question is that the number of aquatic species would increase as a result of the restoration activities in Sudbury. Restoration activities helps in cultivating and protecting marine animals, resulting to the increase in number.

These elements are best known for helping performers memorize an epic poem.A. supernatural elements and poetic language

B. detailed descriptions and informal language

C. rhyme, rhythm, and repetition of certain words

D.elevated language and lists of historical events

Answers

The elements which are best known for helping performers memorize an epic poem are rhyme, rhythm, and repetition of certain words. The answer to your question is C. I hope this is the answer that you are looking for and it comes to your help.

Answer;

-Rhyme, rhythm, and repetition of certain words

The elements that are best known for helping performers memorize an epic poem include rhyme, rhythm, and repetition of certain words.

Explanation;

-Rhyme is the repetition of the final sound or sounds of a word. It is used to create unity of sound and sense, and repetition to assist memory. Rhythm is important in making it easier to remember for recitation. These rhythms are especially enjoyable, because they reflect the natural movement of the human body

The arctic fox is blue-gray in the summer and white in the winter. What most likely influence(s) this change? A. codominant alleles B. dominant alleles C. the environment alone D. genes and the environment

Answers

D. Genes and the environment. The Arctic fox changes it's fur color for camouflage and protection purposes (Hunting prey and Hiding from predators).

Answer:

It is D. Genes and the environment.

Have a good day :)

Water is the most abundant molecule in the human body. what dies most abundant mean?

Answers

Abundant in this case would mean that water makes up most of the human body. In general, it would mean that there's a large quantity of something.
water. and most abundant, just means ratio wise what is the largest quantity.

Dr. Evil administers a toxin that disrupts ribosomal RNA (rRNA) synthesis in the cell above. Which labeled structure would be most negatively impacted by this toxin? 1) None of these labeled structures would be negatively impacted. 2) Structure B 3) Structure C 4) Structure D

Answers

Answer:

Well for this question it is necessary that you upload the image.

Although I would tell you that whenever mRNA is affected, protein synthesis is one of the most important and relevant causes in cell life.

Explanation:

Another fact to add is that according to the protein that is selected, determine the vitality or not of the cell.

In the inoculation of the toxin if the synthesis of a protein that makes up the membrane structure, or of the fundamental structures for vitality, is affected, the cell will go into apoptosis or die.

On the other hand, if the protein synthesis is referred to some enzyme, or a second protective messenger, the cell continues with its vitality.
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Which of the following is NOT a source of point-source pollution? a. trash dumping c. pesticide runoff b. sludge dumping d. oil spill
Which is the primary advantage of instincts, such as the tendency of a mother bear to attack anything between herself and her cubs?
When does the cell have to use active transport ?