Glencoe Life Science

Chapter 11: Plant Processes

Standardized Test Practice

1
In which layer of a leaf is most of a plant's food made?

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A)lower epidermis
B)spongy
C)upper epidermis
D)palisade
2
When are stomata usually open?
A)at night
B)during the day
C)when a plant is losing too much water
D)when food making slows down
3
The plant in the diagram is showing a positive tropism for

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A)gravity.
B)touch.
C)light.
D)water.
4
The plant in the diagram has auxin concentrated

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A)on the side facing the light.
B)in its roots.
C)on its tip.
D)on the shaded side.
5
A stem growing up a chain-link fence or a trellis is growing in response to
A)gravity.
B)touch.
C)light.
D)water.
6
Which plant hormone stimulates ripening?
A)abscisic acid
B)cytokinin
C)ethylene
D)gibberellin
7
In which cell structure does photosynthesis take place?
A)cell wall
B)mitochondrion
C)vacuole
D)chloroplast
8
Which of these substances is produced during photosynthesis?
A)cabon dioxide
B)chlorophyll
C)oxygen
D)water
9
What is the structure indicated by the letter F? [432_STP Questions_ta2]
A)upper epidermis
B)cuticle
C)lower epidermis
D)stoma
10
Long-day plants usually flower
A)in late fall.
B)in mid-winter.
C)in early summer.
D)any time there is more than 12 hours of darkness.
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