Print › IGCSE Biology Photosynthesis | Quizlet | Quizlet

Describe an experiment

to investigate

photosynthesis.

If the temperature is

increased what happens

to the rate of

photosynthesis?

How do you check for

starch in a leaf?

What are two adaptions

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 +

C6H12O6

It will stop working or

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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