Photosynthesis

Question 0

Energy is stored in

Answer 0

ATP

Question 1

Energy is needed for

Answer 1

Active transport
Cell division
Movement
Protein production

Question 2

Photosynthesis

Answer 2

The process by which plants use energy from the sun, via the chloroplasts to produce sugars, oxygen

Question 3

Chlorophyll

Answer 3

The green pigment within chloroplast.

Question 4

Chloroplasts

Answer 4

Organelles in plant cells which capture sunlight and use it , along with carbon dioxide and water to manufacture sugars and oxygen

Question 5

Light dependent stage

Answer 5

The stage of photosynthesis which is powered by sunlight. During this process the plant makes energy which is used in the later stages of photosynthesis.

Question 6

Light independent stage

Answer 6

The stage of photosynthesis which is not dependent on sunlight. The energy storing compounds which were created in the light depended reactions are used to produce sugars, carbon dioxides, water

Question 7

Carbon fixation

Answer 7

Carbon dioxide taken from the atmosphere and incorporated into the plants structure

Question 8

Energy transformation

Answer 8

The changing of heat energy to chemical energy

Question 9

Light intensity

Answer 9

The strength of light

Question 10

Light quality

Answer 10

This refers to the wavelength of the light

Question 11

Carbon dioxide

Answer 11

A gas which makes up approximately 2.4% of the atmosphere. It is produced by respiration(breathing) and by burning fuels

Question 12

Chloroplast has membranes where are they

Answer 12

Outer

Inner membranes - thylakoid membrane

Question 13

What is the grana

Answer 13

Grana forms a stack of flattened disks

Question 14

What is stroma

Answer 14

Gel like liquid surrounding stroma

Question 15

What else is found in chloroplast

Answer 15

Enzymes
DNA
Ribosomes

Question 16

Photosynthesis is a reduction reaction because

Answer 16

It releases oxygen

Question 17

Equation of photosynthesis?

Answer 17

6co2 + 12 h20—> c6h12o6+6h20+602

Question 18

How do you test for starch ?

Answer 18

Feet arch the pants by placing then in a dark cupboard for less than 12 hrs.
Leave the leaves in the sun after that for a specified amount of time
Boil the leaf until it’s flaccid
Immerse 90% alcohol until it’s decolourised .

Then place in KI.

Question 19

Factors required for photosynthesis

Answer 19

Iight
Carbon dioxide
Water 
Chlorophyll 
Temperature

Question 20

How’d u test for the presence of co2?

Answer 20

Place one leaf in a flask
The flask must be filled with KI
other leaf flask in water
De starch both leaves

Question 21

Why do we test starch if we want to know that photosynthesis is happening ?

Answer 21

Glucose is stored as starch because glucose will make cells plasmolysis if they existed in the cell as they are

Question 22

What form co2 is used by aquatic plants

Answer 22

Hydrogen carbonate

Carbonic acid

Question 23

How do you test if light is a limiting factor of photosynthesis ?

Answer 23

Cover a de starched leaf with black paper for a small part . Then test the leaf with iodine for starch . A part of it would be blue while the other part will be blue

Question 24

Solid with low levels of magnesium and nitrogen would mean

Answer 24

There would be less of no chlorophyll in the chloroplasts of the plants growing on that soil. This is why leaves are sometimes yellow

Question 25

When the plant reaches its light compensation point what does that mean ?

Answer 25

Amount of oxygen produced in photosynthesis =amount of oxygen released in respiration

Amount of co2 released in AR=amount of CO2 absorbed in P

Amount of glucose produced =amount of glucose used

Question 26

Action spectrum

Answer 26

Shows the rate of photosynthesis

Question 27

Emission spectrum

Answer 27

Shows the amount of light being absorbed in each wavelength

Question 28

Which light passes easily in water

Answer 28

Red

Question 29

How do u measure how much if light is being absorbed by a plant

Answer 29

Apply blue