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23 questions
Tropisms are...
Plant responses to stimuli
Types of neurone
Types of plant hormone
Types of plant
If a tropism is positive...
The plant moves towards the stimulus
The plant moves away from the stimulus
If a tropism is negative...
The plant moves towards the stimulus
The plant moves away from the stimulus
In shoots, auxin...
makes cells elongate
inhibits elongation
In roots, auxin...
makes cells elongate
inhibits elongation
In shoots, auxin accumulates...
on the lit side
on the shaded side
Where is auxin produced?
Root tips
Shoot tips
xylem
phloem
How does auxin move through the plant?
Diffusion
Osmosis
Active transport
Where is the auxin produced in this shoot tip?
A
B
C
Where will auxin accumulate and make the cells elongate?
A
B
C
The shoot tip on the left has light shining only from position 1. After a week, what will its growth response look like?
A
B
C
The shoot tip on the left has light shining only from position 2. After a week, what will its growth response look like?
A
B
C
The shoot tip on the left has light shining only from position 3. After a week, what will its growth response look like?
A
B
C
The black bar is a mica barrier that blocks auxin.
Which shoot tips will grow towards the light on the right?
A
B
C
D
Where is auxin produced in this root?
A
B
C
Where will auxin accumulate in this root?
A
B
C
Where will cell elongation be inhibited in this root?
A
B
C
Which are positively phototropic?
Roots
Shoots
Which are positively geotropic?
Roots
Shoots
Which are negatively geotropic?
Roots
Shoots
Which are negatively phototropic?
Roots
Shoots
A student mounts a germinating seed on a klinostat. The klinostat is NOT turning. Which way will the shoot grow?
A
B
C
D
A student mounts a germinating seed on a klinostat. The klinostat is turning. Which way will the shoot grow?
A
B
C
D
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