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Ann [662]
4 years ago
12

SOMEONE PLEASE HELP ME!!!!!!

Biology
1 answer:
goblinko [34]4 years ago
7 0
8. Arteries carry oxygenated blood from the heart to the rest of the body, while veins carry deoxygenated blood from the body, back to the heart. Arteries are thick and muscular, while veins aren't as thick, and they have valves.
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Help!!!!! Please answer all of them, no explanation needed!!! <3
Maksim231197 [3]
I believe it’s all true
3 0
3 years ago
What process releases the least ATP per molecule of glucose for immediate cell use?
Nataliya [291]

Answer:

Anaerobic respiration

Explanation:

Anaerobic respiration occurs releasing the ATP per molecule of glucose for immediate use by the cell. Anaerobic respiration is carried out in absence of oxygen. There are two forms of fermentation, alcoholic and lactic acid fermentation. In humans, lactic acid fermentation occurs in muscle cells during intense muscular activity.

C6H12O6    →     2C3H6O3 + 150 kJ

5 0
3 years ago
In the cell, energy that drives endergonic reactions is often obtained from
IRISSAK [1]

Answer: B) energy released from exergonic reactions.  

Explanation:

Cell metabolism is the set of reactions that occur in the cellular environment to synthesize or degrade biomolecules to produce energy. Synthesis metabolism of biomolecules is known as anabolic (anabolism) and catabolic degradation (catabolism).

Endergonic reaction (product has more energy than reagents) and requires energy to occur. Anabolism occurs when the cell has sufficient energy or substrate. Catabolism, in turn, occurs in situations in which the body needs energy, such as between meals and fasting.

The reactions of anabolism and catabolism are opposite but occur in an articulated manner, allowing the maximization of available energy. Thus, while catabolism occurs spontaneously, an exergonic reaction with ATP production, anabolism is non-spontaneous, or endergonic, requiring energy to occur. In other words energy that drives endergonic reactions is often obtained from B) energy released from exergonic reactions.

5 0
3 years ago
Which of the following are matched correctly?
kogti [31]

Answer:

<u>1. type IV hypersensitivity: delayed-type hypersensitivity.  </u>

<u>2. type I hypersensitivity: IgE  </u>

<u>3. type II hypersensitivity: IgG  </u>

<u>4. type III hypersensitivity: immune complexes </u>

Explanation:

Type IV hypersensitivity is cell mediated hypersensitivity rather than antibodies as in all other types of hypersensitivities. It is also known as delayed type hypersensitivity because it usually respond in 2-3 days via T-Lymphocytes rather than antibodies like IgE or IgG. So we can say that in option 5 is mismatched as it relates type IV to IgG antibodies.

4 0
3 years ago
Describe the structure of a typical bone
Paladinen [302]

Answer:

The outside of the bone consists of a layer of connective tissue called the periosteum. Additionally, the outer shell of the long bone is compact bone, then a deeper layer of cancellous bone (spongy bone) which contains in the medullary cavity the bone marrow.

7 0
3 years ago
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