Question 1

If one is unable to move, even if the tissue is directly stimulated, the first tissue to check would be

Accepted Answer

Muscle tissue is responsible for movement, so if an individual is unable to move even when their tissue is directly stimulated, muscle tissue is the first tissue to check. Epithelial tissue is primarily involved in covering and protecting the body's surfaces. Connective tissue provides structural support and connects different tissues and organs together. Nervous tissue is responsible for transmitting nerve impulses and coordinating body functions. While nerve damage could also result in an inability to move, muscle tissue is still the first tissue to investigate.

Question 2

Select the molecule from the options below.

Accepted Answer

H₂O and O₂ are molecules, while N is an atom and O₂ is an element.

Question 3

Which of the following situations would most likely have the greatest increase in catabolic reactions compared to anabolic reactions occurring in the body?

Accepted Answer

During a hunger strike, the body is not receiving enough nutrients from food and must rely on breaking down stored energy sources, such as glycogen and fat, through catabolic reactions. This results in a greater increase in catabolism compared to anabolism. In contrast, during pre-season conditioning or maintaining a healthy eating and exercise plan, the body is likely in a state of equilibrium between anabolic and catabolic reactions, with anabolism slightly outweighing catabolism. While a child going through a growth spurt will have increased anabolic reactions to support tissue growth, catabolism may also increase due to increased energy demands. However, it is less likely to have a greater increase in catabolism compared to anabolism than in a person on a hunger strike.

Question 4

A skeleton has been found that appears to be human in origin. What features would you expect it to have?

Accepted Answer

Human skeletons are characterized by an erect posture and a large skull, which houses our relatively large brain. While we do use two limbs for movement, that is not a defining feature of the skeleton, unlike the erect posture and large skull. Therefore, B and D are both incorrect. A small skull would not be expected for a human skeleton, as our brain size is one of our unique features, so A is also incorrect.

Question 5

Integration between the ____ systems allows the body to maintain pH homeostasis.

Accepted Answer

The respiratory and urinary systems work together to maintain pH homeostasis by regulating the levels of carbon dioxide and bicarbonate ions in the body. The respiratory system controls the levels of carbon dioxide through breathing, while the urinary system controls the levels of bicarbonate ions through the excretion and reabsorption of ions in the kidneys. The endocrine and cardiovascular systems play a role in pH regulation by controlling the levels of hormones and electrolytes in the body, but they do not directly work together to maintain pH balance. The immune and lymphatic systems work together to protect the body from infections and diseases, but they do not have a direct role in pH homeostasis. The integumentary system and immune system work together to protect the body from harmful substances, but they do not have a direct role in pH regulation.

Question 6

Place the levels of organization in order from MOST to LEAST complex.

Accepted Answer

This is the correct sequence of levels of organization from most complex to least complex. Atoms form molecules, which make up cells. Cells form tissues, which make up organs. Organs work together in systems, which make up the organism as a whole.

Question 7

Skin is an example of ___ tissue.

Accepted Answer

The answer of Skin is an example of ___ tissue....

Question 8

We consider movement to have been observed if it occurs at the ____ level.

Accepted Answer

Movement can be observed at various levels of biological organization, including intracellular (within cells), organismal (the whole organism), and organ level. Each of these levels can exhibit movement, whether it's the movement of organelles within cells, the movement of the entire organism, or the movement of specific organs (e.g., the heart beating or lungs expanding and contracting).

Question 9

Proteins and RNA are examples of atoms.

Accepted Answer

Proteins and RNA are not atoms, but rather they are made up of atoms. Proteins are composed of long chains of amino acids, which are made up of atoms such as carbon, hydrogen, nitrogen, and oxygen. RNA is composed of nucleotides, which are made up of atoms such as carbon, hydrogen, oxygen, nitrogen, and phosphorus.

Question 10

Select the correct relationship between growth and reproduction.

Accepted Answer

Growth and reproduction both involve an increase in the total number of cells, whether it be through cell division or the joining of gametes to form a new organism. Option A is incorrect because growth and reproduction can involve the increase in size of individual cells, but this is not a defining characteristic. Option C is incorrect because some types of reproduction, such as asexual reproduction, can occur without the merging of half-cells. Option D is incorrect because growth and reproduction do not necessarily require an increase in the substances around the cells.

Question 11

Someone who studies the kidneys would be a/an ____ physiologist.

Accepted Answer

The answer of Someone who studies the kidneys would be...

Question 12

All of the following statements are true according to cell theory EXCEPT

Accepted Answer

Cell theory states that all living organisms are made up of one or more cells, that the cell is the basic unit of life, and that all cells arise from pre-existing cells. However, it does not state that organs are made up of a single type of cell. In fact, organs are made up of multiple types of cells working together to perform specific functions.

Question 13

Many compounds in our body are regulated to maintain homeostatic levels. Which of the following would NOT be maintained in homeostasis?

Accepted Answer

All of the choices listed (oxygen, glucose, temperature, and carbon dioxide) are indeed maintained within specific ranges in the body to ensure proper physiological functioning, which is a fundamental aspect of homeostasis.

Question 14

Which is an incorrect pairing of a structure-function relationship?

Accepted Answer

A thick layer of cells in an organ would impede exchange, not facilitate it. Thin layers of cells are more efficient for exchange.

Question 15

Which of the following is a defining feature of organs?

Accepted Answer

Organs are composed of two or more different tissues, which work together to perform specific functions in the body. While A, B, and C all refer to combinations of different components, it is the specific combination of multiple tissues that distinguishes organs from other structures in the body.

Question 16

Which would be an example of physiology?

Accepted Answer

Physiology is the study of how organisms, organs, and cells function. Explaining how a neuron conducts a signal falls under the category of understanding the function of cells and their communication within the nervous system. A, B, and C involve more anatomy, which is the study of body structures.

Question 17

Fluids are not circulating around the body, so the problem is most likely due to the ____ systems.

Accepted Answer

Circulation of fluids around the body is primarily the responsibility of the cardiovascular and lymphatic systems. The muscular system is responsible for movement, the endocrine system for hormone regulation, the immune system for defense against pathogens, and the skeletal system for support and protection. The respiratory and digestive systems are also important for overall health, but they do not directly influence fluid circulation.

Question 18

You are watching a cooking show when your stomach suddenly rumbles. This is an example of the life process of

Accepted Answer

The sensation of hunger and the subsequent rumbling of the stomach is a response to a stimulus (in this case, the sight and smell of the food being cooked on the show). This is an example of the life process of responsiveness. Movement, differentiation, and reproduction do not apply to this situation.

Question 19

The gonads, epididymis, vas deferens, uterus, and vagina are all organs that are part of the _____ system, the main function of which is _____.

Accepted Answer

The organs listed are all part of the reproductive system, which is responsible for the formation of a new organism through the process of sexual reproduction.

Question 20

An emergent property of the ____ system is physical breakdown and absorption of nutrients.

Accepted Answer

The answer of An emergent property of the ____ system...

Quiz 1: An Introduction to Physiology