Question 1

What product(s)of cellular respiration does blood carry?

Accepted Answer

Blood carries carbon dioxide and other metabolic wastes away from cells as products of cellular respiration.

Question 2

Fish oxygenate their blood in their gills.Which of the following describes the movement of blood through the gills?

Accepted Answer

All of the above occur. The movement of blood through the gills must slow down and blood pressure must decrease for oxygen to diffuse from water to blood. This diffusion takes place through capillaries present in the gills. Thus, A, B, and C are all correct statements.

Question 3

Blood contains ____________,which are involved in many aspects of the immune response.

Accepted Answer

Leukocytes or white blood cells are the immune cells present in blood that play various roles in the immune response such as identifying and destroying pathogens, producing antibodies, and regulating immune responses. Erythrocytes, platelets, and plasma do not have a direct role in immune responses. Red blood cells and erythrocytes are the same thing.

Question 4

Foods high in saturated fats contribute to which of the following?

Accepted Answer

Foods high in saturated fats contribute to high levels of LDL in the blood.

Question 5

Blood contains ____________,which do not have a nucleus.

Accepted Answer

Erythrocytes, also known as red blood cells, do not have a nucleus. Leukocytes and platelets, which are types of white blood cells, do have a nucleus. Plasma is a fluid component of blood that does not contain cells.

Question 6

Beyond the cellular components of blood and the nutrients and proteins carried in plasma,why is a blood draw such a representative snapshot of our environmental exposures?

Accepted Answer

The answer of Beyond the cellular components of blood and...

Question 7

List at least four major components found in blood and provide the major function of each.

Accepted Answer

The answer of List at least four major components found...

Question 8

The composition of blood contains cells in a liquid known as what?

Accepted Answer

Blood is composed of cells and plasma. Plasma is the liquid in which cells are suspended.

Question 9

Blood contains ____________,which carries the nutrients and signaling molecules necessary for the proper functioning of the body.

Accepted Answer

Plasma is the liquid component of blood that carries nutrients, hormones, and other signaling molecules throughout the body. Leukocytes, erythrocytes, platelets, and white blood cells are all components found within the blood but do not carry nutrients and signaling molecules in the same way that plasma does.

Question 10

One severe form of atherosclerosis is the formation of plaques typically found in which of the following blood vessels?

Accepted Answer

Atherosclerosis is the hardening and narrowing of the arteries due to the buildup of plaques, which are made up of cholesterol, fat, and other substances, in the artery walls. Therefore, plaques are typically found in arteries. Veins and capillaries are not typically affected by atherosclerosis in this way.

Question 11

Single cellular organisms can rely on diffusion to move gases,nutrients,and wastes across their single membrane.What feature of the cardiovascular system overcomes this problem for multicellular organisms?

Accepted Answer

The capillary blood vessels found throughout the body of multicellular organisms allow for the even distribution and diffusion of gases, nutrients, and wastes, overcoming the reliance on diffusion across a single membrane that is used by single-cell organisms. The cardiovascular system also plays a role in this by transporting blood to and from the capillaries through the heart and circulatory system. However, options A, C, and D are not entirely accurate or complete explanations of how the cardiovascular system overcomes the problem of diffusion for multicellular organisms. Option B is also incorrect, as diffusion still occurs in multicellular organisms but is enhanced by the cardiovascular system.

Question 12

How do veins prevent backflow of the low-pressure blood they carry?

Accepted Answer

The answer of How do veins prevent backflow of the...

Question 13

Low-pressure vessels are referred to as what?

Accepted Answer

Low-pressure vessels are veins, as they transport blood back to the heart at lower pressures than arterial vessels.

Question 14

Explain the difference between how LDL and HDL affect cholesterol.Which one of the two is disadvantageous to humans?

Accepted Answer

The answer of Explain the difference between how LDL and...

Question 15

Blood contains ____________,which are actually cell fragments.

Accepted Answer

Platelets are cell fragments that are involved in blood clotting.

Question 16

The "blood" in mollusks is pumped in an open circulatory system.It is referred to as what?

Accepted Answer

Hemolymph is the fluid that acts as the "blood" in mollusks and other invertebrates with open circulatory systems. It is pumped by a heart-like organ and circulates freely throughout the body cavity, bathing the organs and tissues directly. unlike human blood, it does not contain specialized cells like erythrocytes, leukocytes or platelets.

Question 17

What are considered normal blood pressure measurements and how are they expressed?

Accepted Answer

The answer of What are considered normal blood pressure measurements...

Question 18

Why do LDL and HDL have to accompany cholesterol in the blood?

Accepted Answer

The answer of Why do LDL and HDL have to...

Question 19

Explain how carbon dioxide moves into capillaries,and how oxygen moves into tissues.

Accepted Answer

The answer of Explain how carbon dioxide moves into capillaries,and...

Question 20

Which of the following allow red blood cells to flow through one cell at a time?

Accepted Answer

Capillaries are the smallest blood vessels in the body and allow red blood cells to flow through one cell at a time. This allows for efficient exchange of gases, nutrients, and waste products between the blood and surrounding tissues. Arteries, ventricles, aortas, and atria are all larger blood vessels that do not have this same level of specificity for red blood cell flow.

Quiz 27: B: Cardiovascular System Death in Bogalusa

What product(s) of cellular respiration does blood carry?