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Topic 9: Plant Biology

Authored by Katherine Johnson

Biology

12th Grade

Used 19+ times

Topic 9: Plant Biology
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10 questions

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1.

LABELLING QUESTION

3 mins • 1 pt

Plants have widespread influences, from food chains to climate change.

Draw a labelled diagram of the internal structure of a seed.

a
c
b
d

Testa (Seed Coat)

Cotelydon

Plumule

Radicle

Answer explanation

Look at the 9.4 Notes. This goes over the internal parts of a seed. We also used this in our seed dissection.

2.

OPEN ENDED QUESTION

3 mins • 1 pt

Media Image

A student designed an experiment to study the transpiration through the leaves of a tomato plant (Solanum lycopersicum). Measurements were taken in the initial conditions with five leaves on a tomato shoot and then again after each of the five leaves was removed.

Question: Describe the trend in the data.

Evaluate responses using AI:

OFF

Answer explanation

This is the trend you see in terms of correlations. So is there a positive or negative correlation, or no correlation at all.

3.

OPEN ENDED QUESTION

3 mins • 1 pt

Media Image

A student designed an experiment to study the transpiration through the leaves of a tomato plant (Solanum lycopersicum). Measurements were taken in the initial conditions with five leaves on a tomato shoot and then again after each of the five leaves was removed.

Question: Transpiration continued after the fifth leaf had been removed. Suggest what can be concluded.

Evaluate responses using AI:

OFF

Answer explanation

This is suggesting there are no leaves now, but still has gone through transpiration. So we know transpiration still occurred without leaves meaning it occurs also in the stem.

4.

OPEN ENDED QUESTION

3 mins • 1 pt

Media Image

A student designed an experiment to study the transpiration through the leaves of a tomato plant (Solanum lycopersicum). Measurements were taken in the initial conditions with five leaves on a tomato shoot and then again after each of the five leaves was removed.

Question: State the independent variable of the experiment.

Evaluate responses using AI:

OFF

Answer explanation

This is the variable that was physically changed.

5.

REORDER QUESTION

1 min • 1 pt

Reorder the following to show the process of water uptake and transport by plants.

adhesion of water to «leaf» cell walls/cellulose creates tension «forces»

solute concentration inside the root is higher/water potential is lower «than in the soil»; due to active transport of ions/minerals into the root

transport of water in xylem vessels; cohesion/hydrogen bonds between water molecules «allows water to be pulled up in xylem»

evaporation of water from «leaf» cell walls; water begins movement in xylem due to transpiration pull

roots/root hairs absorb water; water is absorbed by osmosis

Answer explanation

Goes from soil to roots. But first evaporation must occur to create the suction from the roots to the xylem. Then water travels up the xylem through cohesion, and stays in the leaves through adhesion.

6.

MATCH QUESTION

1 min • 3 pts

Match the following

Movement of roots of a plant toward gravity

Phototropism

Movement of a plant in response to touch

Thigmotropism

Movement of a plant toward light

Geotropism

Answer explanation

9.3 Notes on tropisms. 1 is not covered, but the other 2 are.

7.

LABELLING QUESTION

1 min • 1 pt

Label a diagram of a dicotyledonous flower.

g
h
a
b
c
d
e
f
i

Ovule

Sepal

Anther

Stamen

Petal

Pistil

Style

Filament

Stigma

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