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trasher [3.6K]
3 years ago
14

Which part of the cell cycle is disrupted when you get a sunburn?

Biology
1 answer:
sergey [27]3 years ago
7 0

Answer:

UV radiation basically damages skin by transferring energy to molecules in your skin, such as DNA, fat, proteins, etc. These molecules, which are already in their proper arrangement, absorb this energy. If the molecules absorb enough energy, the bonds holding them together can break, forming a new shape completely. For a cell that already has been chugging along smoothly thanks to specific molecules with specific shapes doing specific jobs, this is a big deal and causes serious problems.

Explanation:

UV radiation damage to DNA is a particular problem. DNA is a huge molecule and actually quite fragile. When a molecule of DNA is present in a cell, it resembles a zipper: it has two strands, with each strand tightly bound to corresponding molecules on the opposite side, called bases.

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HELP THIS IS URGENT PLEASE HELP
Vladimir [108]

Answer:

valence electrons

horizontal row on the periodic table

cation

anion

solid, ?

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Explanation:

7 0
2 years ago
Which part of the brain is responsible for autonomic functions such as ventilation, cardiac conduction, and vomiting?
romanna [79]

Medulla oblongata, the lowest part of the brain, is responsible for autonomic functions like ventilation, cardiac conduction, and vomiting.

The brain is a very complex organ that controls about every function of the body. It has three main sections:

1. Midbrain

2. Pons

3. Medulla oblongata or Medulla

The medulla oblongata is situated at the lowest portion of the brain. It connects to the pons on the upper side and the spinal cord on the posterior side. It is primarily responsible for controlling some autonomic functions, some of which are essential for human survival, such as ventilation ( pons work together with the medulla and produce rhythms for respiration) and cardiac function. Other functions involve controlling sneezing, hormonal balance, etc.

To know more about medulla oblongata, refer to the following link:

brainly.com/question/26723889

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4 0
2 years ago
What would happen to the concentrations of Pyruvate, NADH and intermembrane H+ if the ETC stopped working?
STatiana [176]

Answer:

"Proton decreases" would be the right approach.

Explanation:

  • The Kreb cycle or system plays a key role throughout a matrix of mitochondria. 3 NADH, 2 FADH2 as well as 1 ATP are synthesized.
  • Whenever the Kreb process has been halted, the acetyl CoA throughout the Kreb cycle has not been used. Pyruvate doesn't at all, disintegrate via acetyl CoA. Therefore in cells, pyruvate accumulates.
  • Unless the Kreb loop is halted, therefore the concentration of NADH and FADH2 declines.

Thus, they aren't used for the transportation chain of electrons. This is also why protons have not been discovered to be injected towards intermembrane space.

8 0
3 years ago
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sveticcg [70]
D. Plants break down the glucose they produced in photosynthesis, and animals get energy from eating other organisms.
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3 years ago
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A student does an experiment for a science fair to study whether temperature affects the timing of a cricket’s chirps. The stude
Ivan
The dependent variable in the experiment is the timing of a cricket's chirps. Thus, the answer is letter C. This variable is dependent on the temperature of the box in which the cricket was placed. The students want to know the relationship between this two variables. 
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3 years ago
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