The type of intercellular junction that consists of fused membranes is a(an)
A) ion channel. B) gap junction.
C) desmosome. D) tight junction.
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Question 2) The removal of wastes produced by metabolic reactions is
A) metabolism. B) assimilation. C) absorption. D) excretion.
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Question 3) The type of chemical bond formed when ions with opposite electrical charges
attract is a(n) ________ bond.
Fill in the blank(s) with correct word
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Question 4) The type of intercellular junction that forms tubular channels is
A) a desmosome. B) a tight junction.
C) found in the blood-brain barrier. D) a gap junction.
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Question 5) The ability of an organism to sense and react to changes in its body illustrates
A) responsiveness. B) absorption.
C) circulation. D) respiration.
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Question 6) The type of subatomic particle that does not have an electrical charge is a(n)
________.
Fill in the blank(s) with correct word
(
Question 7) The type of intercellular junction that functions as a rivet or spot weld is a(n)
A) gap junction. B) tight junction.
C) ion channel. D) desmosome.
(
Question 8) The parts of an atom that carry single negative electrical charges are called
________.
Fill in the blank(s) with correct word
(
Question 9) Assimilation is
A) an increase in body size without a change in overall shape.
B) eliminating waste from the body.
C) breaking down foods into nutrients that the body can absorb.
D) changing absorbed substances into different chemical forms.
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Question 10) An atom with 10 protons and which has lost 2 electrons is electrically neutral.
Indicate whether the statement is true or false
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