BIOL 133|Exam 1 - Chapters 1-6| With complete solution| Rated A+ | Updated| 100% correct| American Public University

Exam 1 - Chapters 1-6

Part 1 of 1 -

Question 1 of 40
2.5/ 2.5 Points

Which statements describe sodium atoms? Select all that apply.

A. has 2 electrons in the first energy level
B. forms cations
D. contains 1 valence electron
E. can lose one electron easily
G. closest to the left side of the periodic table

Question 2 of 40
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If an integrin protein is mutated what cell function might be affected?

A. communication between cytoskeleton and proteglycan



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Question 3 of 40
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You and your roommate are grocery shopping. “I don’t get it,” she says. “My doctor said I
should buy this special milk because I don’t digest it well. But this brand says ‘lactose-free’
and this brand says ‘lactase added’ – which do I want?”
You reply: “The
_______________ is a sugar in milk that you have trouble digesting, and
_________________ is an enzyme that will digest it for you.

B. lactose,lactase



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, Question 4 of 40
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Which of the following is an example of an aliphatic hydrocarbon?

D. Methane



Question 5 of 40
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The equation below represents a(n)____________________.
2NO2 ↔ N2O4

B. reversible reaction



Question 6 of 40
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The shape of the cell is predominantly maintained by the

C. cytoplasm


Feedback: Learning Objective: Recognize the relationship between the endomembrane system
and its functions

Question 7 of 40
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What molecule(s) could diffuse across the plasma membrane?

D. CH4



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Question 8 of 40
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Which molecule(s) would dissolve in water based on polarity? Select all that apply.