New York Science Grade 7

Section 2: Plant Responses

Section Quizzes - English

1
You duck your head when a baseball is thrown toward your face. You are responding to __________.
A)an internal stimulus
B)an external stimulus
C)hormones
D)pigments
2
A plant's response to touch is called __________.
A)respiration
B)light-independence
C)photoperiodism
D)thigmotropism
3
A vine growing up the wall outside your classroom is an example of a response to __________.
A)thigmotropism
B)positive phototropism
C)aerobic respiration
D)negative gravitropism
4
Positive phototropism can cause plant leaves to change growing patterns and __________.
A)grow towards a touch stimulus
B)stop making new cells
C)become day-neutral plants
D)grow towards a light source
5
Which of these is NOT a hormone that affects plant growth?
A)ethylene
B)mitochondrion
C)cytokinins
D)auxin
6
Auxin is a hormone that causes plants to respond to __________.
A)negative gravitropism
B)negative phototropism
C)positive phototropism
D)positive gravitropism
7
The hormone that promotes faster cell division in plants is called __________.
A)chloroplasts
B)cytokinins
C)tropism
D)stomata
8
The hormone that helps plants conserve water is __________.
A)ascorbic acid
B)hydrochloric acid
C)abscisic acid
D)antacid
9
Spinach is a plant that needs short nights to flower. It is a __________ plant.
A)day-neutral
B)long-day
C)short-day
D)nonvascular
10
You are traveling in Costa Rica and see many lettuce plants growing in fields. You conclude that lettuce is __________.
A)a perennial plant
B)a nonvascular plant
C)a short-day plant
D)a long-day plant
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