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NikAS [45]
3 years ago
15

Enzymes function most efficiently at the temperature of a typical cell, which is 37°C (98.6°F). Increases or decreases in temper

ature can significantly lower the reaction rate. What does this suggest about the importance of temperature-regulating mechanisms in organisms? Explain.​
Biology
1 answer:
Elodia [21]3 years ago
4 0

Answer:

Thermoregulation is very important for enzymes, since there are only very specific temperature ranges for enzymes to function optimally. If not met, enzymes might denature (or change in form) and not be useful for metabolism.

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kondaur [170]
You will some water vapour
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explain how an ocean current can affect the temperature and the amount of moisture of the air mass anove the current and above n
Anna [14]
It is all connected as current takes place moisture changes
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A roasted chicken multigrain sandwich contains 42 g protein, 7 g fat, and 34 g carbohydrates. How much energy does the sandwich
Andrei [34K]

1 -

Calories per gram of:

Fat = 9

Charbohydrates ≈ 4

Proteins ≈ 4

So, now we do the math:

34g of charbohydrates equals 34*4g of calories, therefore, 136.

7g of fat equals 7*9g of calories, therefore, 63.

42g of protein equals 42*4g of calories, therefore, 168

136 + 168 + 63 = 367 grams

Answer:

367 grams of calories in the chicken multigrain sandwhich.

2 -

First let's see what does indigestible mean:

Indigestible means that the body does not digest that substance, it is eaten, and released. No modification happens to it.

Which of the components below are indigestible:

The only indigestible food component mentioned in exercise 2 is fiber. Fiber, which provides from plants, is not digestibe by the body.

Answer:

Fiber.

3 -

This is not my area of expertise, but I must say, it's kind of obvious that the deficiency the patient suffers is vitamin C deficiency.

In a vitamin C deficiency, patients suffer from things such as the ones mentioned in the question.

Answer:

Vitamin C.

Image 1 -

During photosynthesis, protons build up in the thylakoid lumen/space. The left-overs of this building-up are then conduced to the stroma where they generate ATP.

Answer:

Thylakoid lumen.

Image 2 -

Just with the salmon fillet, he has already eaten enough vitamin B12, more than 100% of the recommended daily allowance. The amount of vitamin E of the salmon fillet was low, and the amount of vitamin C was null.

The boiled green beans gave him quite a lot of the vitamin C he needs, but not enough. The vitamin E that the boiled green beens provided was also not enough. The amount of vitamin B12 was null.

The sliced strawberries where enough to back up the lack of vitamin C of the boiled green beans, but not enough to back up the lack of vitamin E. The amount of vitamin B12 was null.

Math:

If we do the math needed, we see that Robert only had enough vitamin B12 and C, and that he needed way more vitamin E.

Answer:

B. - Vitamin B12 and C only.

Hope it helped,

BioTeacher101

5 0
3 years ago
Read 2 more answers
Describe how blood is pumped and circulated through the body. Include the roles of the various chambers of the heart, the major
Korvikt [17]

The heart is a pump, usually beating about 60 to 100 times per minute. With each heartbeat, the heart sends blood throughout our bodies, carrying oxygen to every cell. After delivering the oxygen, the blood returns to the heart. The heart then sends the blood to the lungs to pick up more oxygen. This cycle repeats over and over again.

The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart.

The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide. These roadways travel in one direction only, to keep things going where they should.

The heart has four chambers — two on top and two on bottom:

The two bottom chambers are the right ventricle and the left ventricle. These pump blood out of the heart. A wall called the interventricular septum is between the two ventricles.

The two top chambers are the right atrium and the left atrium. They receive the blood entering the heart. A wall called the interatrial septum is between the atria.

The atria are separated from the ventricles by the atrioventricular valves:

The tricuspid valve separates the right atrium from the right ventricle.

The mitral valve separates the left atrium from the left ventricle.

Two valves also separate the ventricles from the large blood vessels that carry blood leaving the heart:

The pulmonic valve is between the right ventricle and the pulmonary artery, which carries blood to the lungs.

The aortic valve is between the left ventricle and the aorta, which carries blood to the body.

What Are the Parts of the Circulatory System?

Two pathways come from the heart:

The pulmonary circulation is a short loop from the heart to the lungs and back again.

The systemic circulation carries blood from the heart to all the other parts of the body and back again.

In pulmonary circulation:

The pulmonary artery is a big artery that comes from the heart. It splits into two main branches, and brings blood from the heart to the lungs. At the lungs, the blood picks up oxygen and drops off carbon dioxide. The blood then returns to the heart through the pulmonary veins.

In systemic circulation:

Next, blood that returns to the heart has picked up lots of oxygen from the lungs. So it can now go out to the body. The aorta is a big artery that leaves the heart carrying this oxygenated blood. Branches off of the aorta send blood to the muscles of the heart itself, as well as all other parts of the body. Like a tree, the branches gets smaller and smaller as they get farther from the aorta.

At each body part, a network of tiny blood vessels called capillaries connects the very small artery branches to very small veins. The capillaries have very thin walls, and through them, nutrients and oxygen are delivered to the cells. Waste products are brought into the capillaries.

Capillaries then lead into small veins. Small veins lead to larger and larger veins as the blood approaches the heart. Valves in the veins keep blood flowing in the correct direction. Two large veins that lead into the heart are the superior vena cava and inferior vena cava. (The terms superior and inferior don't mean that one vein is better than the other, but that they're located above and below the heart.)

Once the blood is back in the heart, it needs to re-enter the pulmonary circulation and go back to the lungs to drop off the carbon dioxide and pick up more oxygen.

How Does the Heart Beat?

The heart gets messages from the body that tell it when to pump more or less blood depending on a person's needs. For example, when you're sleeping, it pumps just enough to provide for the lower amounts of oxygen needed by your body at rest. But when you're exercising, the heart pumps faster so that your muscles get more oxygen and can work harder.

How the heart beats is controlled by a system of electrical signals in the heart. The sinus (or sinoatrial) node is a small area of tissue in the wall of the right atrium. It sends out an electrical signal to start the contracting (pumping) of the heart muscle. This node is called the pacemaker of the heart because it sets the rate of the heartbeat and causes the rest of the heart to contract in its rhythm.

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3 years ago
14. When we are too cold, these trap a layer of air for insulation. *
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The answer is our hair
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