# How do you measure the rate of photosynthesis GCSE?

## How do you measure the rate of photosynthesis GCSE?

In the table below, the Rate of photosynthesis = Number of bubbles produced per minute….Scientific calculations.

Distance Rate
20 cm 30
25 cm 17
30 cm 13

How do you investigate the effect of light intensity on the rate of photosynthesis?

Light will be provided by a lamp and its light intensity can be controlled by moving the light source further away from the pondweed and following the inverse square law. For a given light intensity, the rate of photosynthesis will be measured by measuring the volume of gas displaced in a set amount of time.

How does pondweed photosynthesis?

Like other green plants, pond weed can make sugar from carbon dioxide and water. Red light is more easily used by the pond weed than most other colours. This process of making sugar and oxygen is called photosynthesis. Pond weed uses the carbon dioxide which is dissolved in the water it is in.

### What is photosynthesis GCSE?

Photosynthesis is an endothermic reaction as it requires light energy to react carbon dioxide and water to produce glucose and oxygen. The light energy required is absorbed by a green pigment called chlorophyll in the leaves. Chlorophyll is located in chloroplasts in plant cells .

Why is pondweed used for photosynthesis experiments?

Bright light provides more energy than dim light. Red light is more easily used by the pond weed than most other colours. This process of making sugar and oxygen is called photosynthesis. Pond weed uses the carbon dioxide which is dissolved in the water it is in.

How do you change the intensity of light reaching the pondweed?

Method

1. Set up the apparatus as in the diagram.
2. Leave for five minutes for the pondweed to acclimatise to the new light intensity.
3. Count the number of bubbles given off in one minute.
4. Move the light 10 cm further back.
5. Leave for five minutes for the pondweed to acclimatise again.

## What is the correct formula for photosynthesis?

Identify the type of reactant and product.…

• Write the chemical formula for each of the reactants and products.…
• Count the number of each type of atom in reactants and products.…
• Balance the equation.
• Which is the correct equation for photosynthesis?

which of the following is the correct equation for photosynthesis || Answer:CO₂ + light + H₂O –> O₂ + glucoseGeneral Formulas and Concepts:Photosynthesis is for plants and they use water, carbon dioxide, and energy to make oxygen and sugar.Explanation:The general formula for photosynthesis is always:6CO₂ …

What are the steps in the process of photosynthesis?

Key Plant Process – Photosynthesis (6 steps) Terms in this set (6) Photosynthesis Step 1. Chloroplasts in the leaf traps sunlight/ light energy (plants will grow towards the light energy) Photosynthesis Step 2. Water and minerals absorbed by the roots from the soil, flow up through the stem and enter the leaf.

### What is the overall equation for photosynthesis?

Lavender. The scent of lavender is well known for being relaxing.

• (Sansevieria) Snake Plant. Air quality is another factor that might be affecting your ability to sleep easily and through the night.
• Peace Lily.
• Aloe.
• English Ivy.