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Describe an experiment to investigate photosynthesis.

If the temperature is increased what happens

to the rate of photosynthesis?

How do you check for What are two adaptions

starch in a leaf?

of a leaf?

If the CO2 concentration is decreased what

happens to the rate opt photosynthesis?

What ions are needed for amino acids?

If the light intensity is decreased what happens

to the rate of photosynthesis?

What ions are needed for chlorophyll?

If the temperature is decreased what happens

to the rate of photosynthesis?

What is the chemical equation for

photosynthesis?

1a

It will stop photosynthesising.

Put pondweed under water change the limiting factors (CO2: Baking Powder, Light: Light, Temperature: Temperature) and check the rate of photosynthesis through counting the oxygen bubbles or oxygen displacement.

1. Large Surface Area: More Sunlight.

2. Thin so gas exchange can happen easily.

Use Iodine Solution.

Nitrate ions

The rate of photosynthesis

decreases.

Magnesium ions

The rate of photosynthesis

decreases.

6CO2 + 6H2O -> 6O2 + It will stop working or

C6H12O6

decrease.

1b

What is the job of the Lower Epidermis?

What is the process of photosynthesis.

What is the job of the Palisade Mesophyll?

What is the worded equation for

photosynthesis?

What is the job of the Spongy Mesophyll?

Where can the Lower Epidermis be found?

What is the job of the Upper Epidermis?

Where can the Palisade Mesophyll be found?

What is the job of the Waxy Cuticle?

Where can the Spongy Mesophyll be found?

2a

1. Absorbing light energy in the chlorophyll 2. Then that energy is used to make CO2 and H2O into glucose 3. Glucose is used in Respiration 4. Oxygen is another product

To allow gases in and out. Closed at night to prevent water loss. Contains guard cells to open and close the

stomata.

Carbon Dioxide + Water -> sunlight ->

chlorophyll -> Oxygen + Glucose

Tightly packed and contain many

chloroplasts. Main job: to photosynthesise.

It can be found under the Spongy Mesophyll.

To allow gas exchange. Loosely arranged and have many airspaces.

It can be found under the Upper Epidermis.

Thin, flat and transparent (no chloroplasts) to maximise

photosynthesis through light intensity.

It can be found under the Palisade Mesophyll.

It's job is to stop microorganisms from entering the leaf and to stop water evaporating.

2b

Where can the upper epidermis be found? Where can the Waxy

Cuticle be found?

3a

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