BSCS Biology: A Molecular Approach

Chapter 7: Transport Systems

Chapter Test

1.
Why are mosses found only in damp areas?
A)They require both carbon dioxide and oxygen for photosynthesis.
B)Transport tissues did not evolve in mosses.
C)They adapted to life on land later than vascular plants.
D)They adapted by developing only an aerial system of leaves.
2.
What hypothesis explains the likely mechanism by which water travels from the roots to the top of the plant?
A)cohesion-adhesion hypothesis
B)plant transport hypothesis
C)cohesion-tension hypothesis
D)adhesion-transpiration hypothesis
3.
How are nutrients transported throughout plants?
A)by vessel elements
B)by companion cells
C)by tracheids
D)by phloem cells
4.
Which of the following is an example of an animal with an open circulatory system?
A)a hydra
B)a paramecium
C)a grasshopper
D)a roundworm
5.
The greatest amount of oxygen is found in which of the blood vessels?
A)capillaries
B)veins
C)Oxygen is found in equal amounts throughout the circulatory system.
D)arteries
6.
What type of vertebrate circulatory system is represented by this figure?

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A)fish
B)mammals
C)amphibians
D)birds
7.
What action is occurring during ventricular systole?
A)The ventricle is relaxing and pressure is rising.
B)The ventricle is contracting and pressure is falling.
C)The ventricle is relaxing and pressure is falling.
D)The ventricle is contracting and pressure is rising.
8.
What controls the rate of the heart's beats?
A)the heart muscle
B)nerves outside the heart
C)specialized muscle tissues cells high in the inner wall of the right atrium
D)the AV valve's opening and shutting
9.
Which organ or tissue shows the greatest change in blood flow between resting and exercising?
A)skeletal muscle
B)heart
C)brain
D)bone
10.
Where do erythrocytes, which transport oxygen in the blood, reproduce?
A)in cardiac muscle
B)in the bloodstream
C)in marrow
D)in the brain
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