Florida Science Grade 7

Chapter 13: Plant Processes

Plant Processes

1
Positive phototropism can cause plant leaves to change growing patterns and __________.
A)grow towards a light source
B)become day-neutral plants
C)grow towards a touch stimulus
D)stop making new cells
2
__________ is the process that breaks down food molecules and releases energy.
A)Photosynthesis
B)Meiosis
C)Photoperiodism
D)Respiration
3
A geranium gets the water needed to survive through its __________.
A)stomata
B)roots
C)leaves
D)chlorophyll
4
You are traveling in Costa Rica and see many lettuce plants growing in fields. You conclude that lettuce is __________.
A)a long-day plant
B)a nonvascular plant
C)a perennial plant
D)a short-day plant
5
The reason most plant leaves look green is because of __________ in their cells.
A)chloroplasts
B)water
C)oxygen
D)sugar
6
Auxin is a hormone that causes plants to respond to __________.
A)positive phototropism
B)positive gravitropism
C)negative phototropism
D)negative gravitropism
7
Carbon dioxide enters a plant through its __________.
A)roots
B)trunk
C)leaves
D)flowers
8
Carbon dioxide is involved in __________.
A)light-dependent reactions
B)light-independent reactions
C)thigmotropism
D)photoperiods
9
Photosynthesis is a plant process used to __________.
A)copy chromosomes
B)produce offspring
C)release energy
D)store energy
10
You are outside admiring the flowers on a rose bush. Looking at the green leaves, the green light is __________ from chlorophyll.
A)mutated
B)filtered
C)reflected
D)dissolved
11
A plant's response to touch is called __________.
A)photoperiodism
B)thigmotropism
C)respiration
D)light-independence
12
Plant photosynthesis helps humans because __________.
A)the process adds oxygen to the atmosphere
B)the process adds carbon dioxide to the atmosphere
C)the process adds nitrogen to the atmosphere
D)the process removes oxygen from the atmosphere
13
The hormone that promotes faster cell division in plants is called __________.
A)stomata
B)cytokinins
C)chloroplasts
D)tropism
14
The process where light energy is trapped in a plant's chlorophyll and produces sugars is called __________.
A)acceleration
B)photosynthesis
C)mitosis
D)respiration
15
Spinach is a plant that needs short nights to flower. It is a __________ plant.
A)long-day
B)nonvascular
C)day-neutral
D)short-day
16
Which of these is NOT a hormone that affects plant growth?
A)cytokinins
B)mitochondrion
C)auxin
D)ethylene
17
The outer layer of a leaf is called the __________.
A)trunk
B)muscle
C)seed
D)epidermis
18
Respiration is important to most organisms because __________.
A)it is an external stimulant
B)carbon dioxide is removed from the atmosphere
C)food energy is converted into a form for cell use
D)oxygen is removed from the atmosphere
19
Small openings on the epidermis of plant leaves are called __________.
A)vapor
B)waste
C)stomata
D)bark
20
You duck your head when a baseball is thrown toward your face. You are responding to __________.
A)an external stimulus
B)hormones
C)pigments
D)an internal stimulus
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Policy before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.