Question 1
3 / 3 pts
All enzymes are which type of organic molecule?
proteins
IncorrectQuestion 2
0 / 3 pts
The measure of the concentration of solutes in a solution is ____.
tonicity
osmosis
hydrostatic pressure
diffusion
facilitated diffusion
Question 3
3 / 3 pts
The production of ATP in the mitochondria requires ____.
oxygen
IncorrectQuestion 4
0 / 3 pts
The term substrate is synonymous to the term ____.
enzyme
end product
reactant
intermediate
active site
IncorrectQuestion 5
0 / 3 pts
What type of microscope uses magnetic lenses to bend beams of electrons?
scanning electron microscope
Question 6
3 / 3 pts
What major factor limits cell size?
The surface area to volume ratio
Question 7
3 / 3 pts
The plasma membrane is composed of ____.
primarily phospholipids
IncorrectQuestion 8
0 / 3 pts
The organelle that converts harmful hydrogen peroxide to water and oxygen is the ____.
peroxisome
Question 9
3 / 3 pts
Which statement is NOT true of diffusion?
The process requires ATP.
Question 10
3 / 3 pts
The diffusion of water across a membrane is known as ____.
osmosis
Question 11
3 / 3 pts
What type of tissue covers body surfaces or lines cavities?
muscle
nerve
endocrine
epithelial
Question 12
3 / 3 pts
The integument consists of all of the following EXCEPT ____.
endocrine glands
Question 13
3 / 3 pts
Which type of cell produces proteins that form the tough, water-insoluble layer in the skin?
keratinocytes
Question 14
3 / 3 pts
A severe sunburn would result in damage to which membrane?
cutaneous
Question 15
3 / 3 pts
What type of fiber allows tissue to easily stretch and recoil?
elastic
Question 16
3 / 3 pts
Membranes that occur in paired sheets are classified as ____.
serous
Question 17
3 / 3 pts
Which system functions to maintain blood volume and composition?
urinary
Question 18
3 / 3 pts
Which system defends against infections and cancer?
lymphatic
Question 19
3 / 3 pts
Which membrane reduces friction between the lungs and chest wall during breathing?
serous
Question 20
3 / 3 pts
Melanocytes are located in the ____.
epidermis
Question 21
3 / 3 pts
Which layer of the integument contains stratified squamous cells?
epidermis
Question 22
3 / 3 pts
In places where the public sanitation is poor, people run the risk of getting ____.
cholera
Question 23
3 / 3 pts
Phagocytosis is a form of ____.
endocytosis
IncorrectQuestion 24
0 / 3 pts
Above 41o C, ____.
enzymes denature
Question 25
3 / 3 pts
What type of tissue consisting of a single layer of cells containing cilia lines the throat and nasal
passages?
pseudostratified epithelium
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