Question 1

Of the pathogenic organisms, which of the following are the most complex?

Accepted Answer

Tapeworms

Question 2

Negative-feedback mechanisms:
A. minimize changes in blood glucose levels. 
B. maintain homeostasis.
C. are responsible for an increased rate of sweating when air temperature is higher than body temperature. 
D. All of the above are correct.

Accepted Answer

D. All of the above are correct

Question 3

The normal reading or range of normal is called the:

Accepted Answer

set point.

Question 4

If the secretion of oxytocin during childbirth operated as a negative-feedback control loop, what effect would it have on uterine contractions?

Accepted Answer

Oxytocin would inhibit uterine contractions.

Question 5

Homeostasis can best be described as:

Accepted Answer

a state of relative constancy.

Question 6

Peptide bonds join together molecules of:

Accepted Answer

amino acids.

Question 7

All of the following substances are organic except:
A. lipids
B. electrolytes 
C. carbohydrates
D. Proteins

Accepted Answer

B. Electrolytes

Question 8

Which of the following is not one of the major groups of organic substances in the human body?

Accepted Answer

Salts

Question 9

Which of the following is not true of carbohydrates?
A. They include substances commonly called sugars. 
B. They are the body’s primary source of energy. 
C. They are a part of both DNA and RNA. 
D.  All of the above are true of carbohydrates.

Accepted Answer

D.  All of the above are true of carbohydrates.

Question 10

The alpha helix is an example of which level of protein structure?

Accepted Answer

Secondary

Question 11

The types of lipids found that form hormones, such as cortisone, estrogen, and testosterone are:

Accepted Answer

steroids.

Question 12

Materials can be moved from a low concentration to a high concentration through:

Accepted Answer

active transport.

Question 13

An individual’s entire set of DNA can be referred to as a:

Accepted Answer

genome.

Question 14

Which of the following is not true of RNA?

Accepted Answer

It contains deoxyribose sugar.

Question 15

Which of the following is not a characteristic of connective tissue?

Accepted Answer

Typically holds its cells together tightly by means of desmosomes

Question 16

Basement membrane is composed of molecules made by _____ tissue.

Accepted Answer

connective & epithelial

Question 17

Which cells electrically insulate axons to increase the speed of conduction?

Accepted Answer

Oligodendrocytes & Schwann cells

Question 18

Which is not a function of connective tissue?

Accepted Answer

Communication

Question 19

Which of the following is not a characteristic of smooth muscles?

Accepted Answer

Having intercalated disks

Question 20

A tissue is:

Accepted Answer

a group of similar cells that perform a common function.

Question 21

The hypodermis:

Accepted Answer

connects the dermis to underlying tissues.

Question 22

Of the five epidermal cell layers, the only one that can undergo mitosis is the stratum:

Accepted Answer

basale.

Question 23

In bone formation, the cells that produce the organic matrix are the:

Accepted Answer

osteoblasts.

Question 24

Bones grow in diameter by the combined action of which two of the three bone cell types?

Accepted Answer

osteoblasts and osteoclasts

Question 25

Which structures are unique to the fetal skull and provide additional space for molding the head shape as the baby passes through the birth canal?

Accepted Answer

fontanels

Question 26

The cell organelles that synthesize organic matrix substances in bone formation are:

Accepted Answer

endoplasmic reticulum and Golgi apparatus.

Question 27

The primary ossification center of a long bone is located:

Accepted Answer

in the diaphysis.

Question 28

Due to how the clavicle articulates with the scapula, all shoulder movements involve the sternoclavicular joint.

Accepted Answer

True

Question 29

Cross-bridges are also called:

Accepted Answer

myosin heads.

Question 30

Physiological muscle fatigue may be caused by:
A. a relative lack of ATP. 
B. high levels of lactate. 
C. failure of the sodium-potassium pumps. 
D. all of the above.

Accepted Answer

D. All of the above

Question 31

The ion necessary for cross-bridging is:

Accepted Answer

calcium.

Question 32

Which type of muscle does not have T-tubules?

Accepted Answer

Smooth

Question 33

The lactate produced by anaerobic respiration is converted back to glucose in the:

Accepted Answer

liver.

Question 34

The substance that attracts oxygen in the myoglobin molecule is:

Accepted Answer

iron.

Question 35

Which joint allows for the widest range of movement?

Accepted Answer

Ball and socket

Physiology Week 7

Physiology week 7 Assignment

Question	Answer
Of the pathogenic organisms, which of the following are the most complex?	Tapeworms
Negative-feedback mechanisms: A. minimize changes in blood glucose levels. B. maintain homeostasis. C. are responsible for an increased rate of sweating when air temperature is higher than body temperature. D. All of the above are correct.	D. All of the above are correct
The normal reading or range of normal is called the:	set point.
If the secretion of oxytocin during childbirth operated as a negative-feedback control loop, what effect would it have on uterine contractions?	Oxytocin would inhibit uterine contractions.
Homeostasis can best be described as:	a state of relative constancy.
Peptide bonds join together molecules of:	amino acids.
All of the following substances are organic except: A. lipids B. electrolytes C. carbohydrates D. Proteins	B. Electrolytes
Which of the following is not one of the major groups of organic substances in the human body?	Salts
Which of the following is not true of carbohydrates? A. They include substances commonly called sugars. B. They are the body’s primary source of energy. C. They are a part of both DNA and RNA. D. All of the above are true of carbohydrates.	D. All of the above are true of carbohydrates.
The alpha helix is an example of which level of protein structure?	Secondary
The types of lipids found that form hormones, such as cortisone, estrogen, and testosterone are:	steroids.
Materials can be moved from a low concentration to a high concentration through:	active transport.
An individual’s entire set of DNA can be referred to as a:	genome.
Which of the following is not true of RNA?	It contains deoxyribose sugar.
Which of the following is not a characteristic of connective tissue?	Typically holds its cells together tightly by means of desmosomes
Basement membrane is composed of molecules made by _____ tissue.	connective & epithelial
Which cells electrically insulate axons to increase the speed of conduction?	Oligodendrocytes & Schwann cells
Which is not a function of connective tissue?	Communication
Which of the following is not a characteristic of smooth muscles?	Having intercalated disks
A tissue is:	a group of similar cells that perform a common function.
The hypodermis:	connects the dermis to underlying tissues.
Of the five epidermal cell layers, the only one that can undergo mitosis is the stratum:	basale.
In bone formation, the cells that produce the organic matrix are the:	osteoblasts.
Bones grow in diameter by the combined action of which two of the three bone cell types?	osteoblasts and osteoclasts
Which structures are unique to the fetal skull and provide additional space for molding the head shape as the baby passes through the birth canal?	fontanels
The cell organelles that synthesize organic matrix substances in bone formation are:	endoplasmic reticulum and Golgi apparatus.
The primary ossification center of a long bone is located:	in the diaphysis.
Due to how the clavicle articulates with the scapula, all shoulder movements involve the sternoclavicular joint.	True
Cross-bridges are also called:	myosin heads.
Physiological muscle fatigue may be caused by: A. a relative lack of ATP. B. high levels of lactate. C. failure of the sodium-potassium pumps. D. all of the above.	D. All of the above
The ion necessary for cross-bridging is:	calcium.
Which type of muscle does not have T-tubules?	Smooth
The lactate produced by anaerobic respiration is converted back to glucose in the:	liver.
The substance that attracts oxygen in the myoglobin molecule is:	iron.
Which joint allows for the widest range of movement?	Ball and socket

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