AnswersBiology HB1416 Macromolecules Catalysts Week 5Diagnostic PreTest

Diagnostic PostTest Answers

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Which best describes stem cells?

A
Differentiation produces specialized cells from stem cells.
B
Self-renewal produces specialized cells from differentiated cells.
C
Self-renewal produces differentiated cells from stem cells.
D
Differentiation produces stem cells from specialized cells.
22
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Look at the picture below.What macromolecules make up most of the structure that is shown?

Question illustration
A
carbohydrates
B
lipids
C
nucleic acids
D
proteins
23

Which process occurs within the mitochondria?

A
lactic acid fermentation
B
alcohol fermentation
C
glycolysis
D
Krebs cycle
24

What is the end result of the eukaryotic cell cycle?

A
no parent cells and two daughter cells
B
one parent cell and two daughter cells
C
two parent cells and one daughter cell
D
one parent cell and one daughter cell
25

Which argument supports the idea that viruses are alive?

A
Viruses have a cell membrane.
B
Viruses contain unique genetic information.
C
Viruses replicate in a host.
D
Viruses do not produce proteins.
26

Sebastian wants to make ball-and-stick models of the four macromolecules. He has colored balls for each of the elements in these molecules, including the following. red: hydrogen black: carbon purple: oxygen green: nitrogenWhich molecule could he make that consists of long chains of red and black colored balls?

A
carbohydrates
B
lipids
C
nucleic acids
D
proteins
27

Chloroplasts have a complex internal structure, as shown in the model below.In which location is glucose formed?

Question illustration
A
Location A
B
Location B
C
Location C
D
Location D
28

How does interphase prepare cells for mitosis?

A
rest prior to cell division
B
growth of cell and replication of DNA
C
dissolution of nucleus and cell membrane
D
division of cytoplasm
29

Which statement best describes how a catalyst can speed up a chemical reaction?

A
The catalyst decreases the activation energy needed.
B
The catalyst increases the concentration of products.
C
The catalyst binds to enzymes to release substrates.
D
The catalyst increases the concentration of reactants.

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