Question 1

Pieces of cells found in blood plasma that can collect and block blood flow are called ____________________.

Accepted Answer

The answer of Pieces of cells found in blood plasma...

Question 2

The figure below illustrates body size and diffusion time. 
Which of the following examples represents the quickest diffusion time?

Accepted Answer

The figure shows that diffusion time decreases as distance across decreases. Cells have a very short distance across, so diffusion occurs quickly. The other options are not supported by the figure or are based on incorrect assumptions.

Question 3

Bubbles form in a glass of water because it contains dissolved ____________________.

Accepted Answer

The answer of Bubbles form in a glass of water...

Question 4

Unlike aquatic organisms, humans have their gas exchange surfaces on the inside rather than the outside. This adaptation evolved to

Accepted Answer

Unlike aquatic organisms, land organisms like humans face the challenge of losing water during gas exchange due to the dry atmosphere. To reduce water loss and maintain proper gas exchange, humans adapted to have their gas exchange surfaces, such as the lungs, on the inside of their bodies.

Question 5

The ____________________ contracts in order to pump blood through the systemic circuit.

Accepted Answer

The answer of The ____________________ contracts in order to pump...

Question 6

Why do many large animals rely on internal transport systems (like the circulatory system)to distribute oxygen?

Accepted Answer

Diffusion is very slow over all but the shortest distances, so oxygen must be delivered to cells to speed up the process. Larger animals have more cells and thus require a more efficient transport system than diffusion alone. The circulatory system allows for the rapid delivery of oxygen to all parts of the body, including those that are farther away from the external environment.

Question 7

The ____________________ that aquatic animals use for gas exchange have evolved several times, but they are always structured to provide the maximum surface area for gas exchange.

Accepted Answer

The answer of The ____________________ that aquatic animals use for...

Question 8

While observing goldfish, you notice that gill flaps move up and down in a constant rhythm. This movement

Accepted Answer

The movement of the gill flaps helps to ensure that the gas exchange organs of the fish (the gills) are constantly surrounded by oxygen-rich water. This allows for efficient oxygen uptake and carbon dioxide removal from the fish's bloodstream.

Question 9

Gases move from an area of ____________________ concentration to an area of ____________________ concentration.

Accepted Answer

The answer of Gases move from an area of ____________________...

Question 10

____________________ is the process of expelling carbon dioxide from the lungs and taking oxygen into the lungs.

Accepted Answer

The answer of ____________________ is the process of expelling carbon...

Question 11

A complication of an athlete injecting erythropoietin (EPO)could be

Accepted Answer

Erythropoietin (EPO) is a hormone that stimulates the production of red blood cells. Injecting EPO can lead to an increased risk of blood clot formation, which in turn can lead to a heart attack or stroke. Other potential complications of EPO use may include dehydration, heat exhaustion, and decreased muscle mass, but these are less directly related to the use of EPO.

Question 12

The human ____________________ system is used for the internal transport of oxygen and carbon dioxide.

Accepted Answer

The answer of The human ____________________ system is used for...

Question 13

Human red blood cells contain the red pigment ____________________.

Accepted Answer

The answer of Human red blood cells contain the red...

Question 14

The figure below illustrates the inhalation step of gas exchange in humans.
  
In this figure, the diaphragm and the muscles of the rib cage are ____________________ [relaxed or contracted].

Accepted Answer

The answer of The figure below illustrates the inhalation step...

Question 15

More gas will diffuse through a ____________________ surface area than a ____________________ surface area.

Accepted Answer

The answer of More gas will diffuse through a ____________________...

Question 16

Where would you expect hemoglobin to release oxygen?

Accepted Answer

Hemoglobin releases oxygen at the terminal ends of bronchioles and near body cells that are undergoing cellular respiration. Alveoli are where oxygen diffuses into the bloodstream, and red blood cells undergoing cellular respiration would not require oxygen to be released from hemoglobin.

Question 17

In humans and many other animals gases are transported in ____________________, which travels rapidly in a circulatory system.

Accepted Answer

The answer of In humans and many other animals gases...

Question 18

In the figure of veins below, the blood clot could move to the lungs and cause a ____________________.

Accepted Answer

The answer of In the figure of veins below, the...

Question 19

The lungs of organism A have a surface area of 10 square cm. The lungs of organism B have a surface area of 5 square cm. Based on this information, the rate of gas exchange must be higher in organism ____________________.

Accepted Answer

The answer of The lungs of organism A have a...

Question 20

Although blood plasma carries many electrolytes, nutrients, and other components, the vast majority of plasma is made of ____________________.

Accepted Answer

The answer of Although blood plasma carries many electrolytes, nutrients,...

Quiz 28: Circulation and Gas Exchange