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Chapter Assessment Lesson 2.2
Learning Key Terms and Concepts
Charged particles can only enter or leave a cell via _____.
Glycoproteins are proteins with _____ groups attached.
Located near the nucleus, the _____ help to guide the movement and separation of chromosomes during cell division.
Because of their great need for energy to power muscle contractions, cardiac muscle cells have a high number of _____.
The breakdown of a glucose molecule into two pyruvate molecules is called _____.
Because it carries the basic information that will be used to make a protein, an RNA strand is often called _____.
A. +RNA
B. rRNA
C. mRNA
D. none of the above
The cytoskeleton does
not
include _____.
A. cytofilaments
B. intermediate filaments
C. microfilaments
D. microtubules
Which of the following is a set of membranous discs in the cytoplasm?
A. ATP
B. endoplasmic reticulum
C. Golgi apparatus
D. vesicles
Which of the following does
not
describe a ribosome?
A. It is a very large enzyme.
B. It is found in the nucleus.
C. It makes polypeptides.
D. It includes a large and a small subunit.
The enzyme that unzips DNA to produce an RNA molecule is called _____.
A. adenine
B. transfer RNA
C. adipocyte
D. RNA polymerase
Describe the differing functions of the rough and smooth endoplasmic reticulum.
Instructions: For questions 25-32, write the letter of the name of the cell structure on your answer sheet next to the corresponding number.
Mitochondrion
Ribosomes
Golgi apparatus
Cytoskeleton
Centrosome
Nucleus
Plasma membrane
Cytoplasm
Thinking Critically
Compare and contrast microvilli and cilia.
Investigate the physical and chemical processes that contribute to homeostasis, including equilibrium, temperature, pH balance, chemical reactions, active and passive transport, and biofeedback. In an oral presentation, describe how these processes are integrated.
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