AnswersBasic Biology S2Cellular Respiration

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The diagram illustrates photosynthesis.

Question illustration
A
Carbon dioxide enters the stem through xylem.
B
Oxygen enters the stem through stomata.
C
Water is carried to the leaves by stomata.
D
Water is carried to the leaves by xylem.
3

What role do glucose and oxygen play in cellular respiration?

A
They are reactants because they are present before the reaction.
B
They are reactants because they are present after the reaction.
C
They are products because they are present before the reaction.
D
They are products because they are present after the reaction.
4

Laaj made a Venn diagram to compare the two stages of cellular respiration.

Question illustration
A
Energy is released.
B
Oxygen is used up.
C
Glucose is broken down.
D
Carbon dioxide is used up.
5

Where in an equation for photosynthesis does oxygen belong?

A
on the left side, because it is a product
B
on the right side, because it is a product
C
on the right side, because it is a reactant
D
on the left side, because it is a reactant
6

Which is a function of the cell wall?

A
to transport materials within the cell
B
to prevent cells from taking in too much water and bursting
C
to make DNA in the nucleus
D
to make glucose from carbon dioxide, water, and sunlight
8

What is one structure of a plant cell that is not found in animal cells?

A
mitochondria
B
chloroplast
C
cell membrane
D
cytoplasm
11

Study the diagram.

Question illustration
A
DNA doubles and the cell gets ready to divide.
B
DNA lines up in the center of the cell.
C
DNA is pulled apart to opposite ends of the cell.
D
The cell membrane pinches inward, and the cell splits into two.
12

dioxidesoxygenproductsreactants

A
dioxides
B
oxygen
C
products
D
reactants
13

What role does blood play before cellular respiration can occur?

A
Blood releases energy from very small molecules.
B
Blood carries energy from cytoplasm to a mitochondrion.
C
Blood delivers oxygen and glucose to cells.
D
Blood delivers carbon dioxide and water to cells.

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