Investigating Photosynthesis

Presentation

•

Science

•

9th Grade

•

Practice Problem

•

Hard

Ben Humphreys

Used 16+ times

FREE Resource

20 Slides • 24 Questions

Investigating Photosynthesis

How can we measure the rate of photosynthesis? What can impact photosynthesis?

Multiple Choice

Which structure carries out photosynthesis?

chloroplast

mitochondria

cytoplasm

vacuole

Multiple Choice

The pore on the underside of a leaf are called?

Palisade cells

Spongy mesophyll

stomata

lower epidermis

Multiple Choice

Why do leaves have a waxy cuticle?

to stop carbon dioxide entering

to increase water lose

to reduce water lose

to look nice

Multiple Choice

What are chlorophyll?

the blue pigment in plants which absorb light

the green pigment in plants which absorb carbon dioxide

the green pigment in plants which absorbs light

the structure which carries out respiration

Multiple Choice

True or False -Sunlight is absorbed by chlorophyll, a green pigment within the chloroplast.

True

False

Multiple Choice

True or False -Water enters a plant through its roots by diffusion and then travels to the leaves through tubes called phloem vessels.

True

False

Multiple Choice

True or False - Carbon Dioxide diffuses into leaves through stomata

True

False

Multiple Choice

True or False - Guard cells control the size of the stomata depending on the amount of oxygen received.

True

False

Multiple Choice

True or False - Photosynthesis takes place in the mitochondria. Light energy is used to convert water and carbon dioxide into glucose and oxygen.

True

False

Multiple Choice

True or False - Oxygen is a by product of photosynthesis, leaves the plant through the stomata.

True

False

Multiple Choice

What is an independent variable?

the variable that is altered during a scientific experiment.

the variable being tested or measured during a scientific experiment.

a variable that is kept the same during a scientific experiment

Multiple Choice

What is an dependent variable?

the variable that is altered during a scientific experiment.

the variable being tested or measured during a scientific experiment.

a variable that is kept the same during a scientific experiment

Multiple Choice

What is a control variable?

the variable that is altered during a scientific experiment.

the variable being tested or measured during a scientific experiment.

a variable that is kept the same during a scientific experiment

Fill in the Blanks

State what the independent variable is during the practical in the image.

Type answer...

Fill in the Blanks

State what the dependent variable is during the practical in the image.

Type answer...

Fill in the Blanks

State what the control variable is during the practical in the image.

Type answer...

Multiple Choice

When will the rate of photosynthesis be at it highest.

closest to the light

furthest away from the light

at half way point

non of the above.

Open Ended

Suggest why using a LED light bulb would be better.

Type response here

Open Ended

How could they improve the reliable or validity of the experiment.

Type response here

Fill in the Blanks

1.What factors affect the rate of photosynthesis?

Type answer...

Fill in the Blanks

2.Which factor is being tested in these pictures?

Type answer...

Fill in the Blanks

3.How would you change this factor reaching the plant?

Type answer...

Open Ended

4.Why is the top method not accurate as the bottom?

Type response here

Open Ended

5.Why would you use a thermometer?

Type response here

Investigating Photosynthesis

How can we measure the rate of photosynthesis? What can impact photosynthesis?

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