Worksheet: Photosynthesis

In this worksheet, we will practice describing the process of photosynthesis, and explaining the importance of the products made.

Q1:

A plant requires energy for photosynthesis to occur.

Where does this energy come from?

  • AThe absorption of mineral ions from the soil
  • BArtificial or natural light
  • CHeat energy
  • DBackground radiation

Q2:

In plants, the glucose produced in photosynthesis can be converted into cellulose.

What subcellular structure in plants is cellulose used to make?

  • ACytoplasm
  • BCell membrane
  • CCell wall
  • DChlorophyll
  • ENucleus

Q3:

What is the green pigment contained within a chloroplast to absorb sunlight?

  • AChlorophene
  • BChromatin
  • CChlorophyll
  • DChlorine

Q4:

Plants use the glucose produced by photosynthesis in many ways.

In what biological process can the plants break glucose down to provide energy?

  • ARespiration
  • BReplication
  • CPhotosynthesis
  • DSynthesis
  • EMitosis

Q5:

What gas is a reactant in photosynthesis?

  • AOxygen
  • BCarbon oxide
  • CCarbon dioxide
  • DSulfur dioxide

Q6:

The glucose made in photosynthesis can be converted into multiple molecules for the plant. Which of the following is not a molecule that can be synthesized with the use of glucose?

  • AAmino acids
  • BStarch
  • CLipids
  • DCellulose
  • EChlorophyll

Q7:

For photosynthesis to occur, energy has to be taken in from the surroundings.

What type of chemical reaction is this?

  • AExothermic
  • BEndothermic

Q8:

Which of the following does not represent an adaptation of leaves for photosynthesis?

  • ALeaves have a large surface area to maximize the amount of sunlight they can take in.
  • BLeaves have hair cells that extend outward to increase the surface area for water uptake.
  • CLeaves have openings called stomata on their undersides that open to allow CO2 in.
  • DLeaves are thin, so diffusion pathways for gases are very short.
  • EPalisade cells in the leaves contain many chloroplasts to maximize photosynthesis.

Q9:

How do plants obtain the carbon dioxide required for photosynthesis?

  • AIt is actively transported from the soil into the root and moved up the plant to the leaves.
  • BIt diffuses from the soil into the stem and is transported up to the flowers.
  • CIt diffuses from the surrounding air into the plant through open stomata.
  • DIt is moved from the soil into the root by osmosis and transported up the plant to the leaves.

Q10:

Which of the following terms refers to organisms in the food chain that can photosynthesize to produce their own food?

  • ASecondary consumers
  • BPrimary consumers
  • CDetritivores
  • DProducers
  • EDecomposers

Q11:

Which of the following is the correct, balanced symbol equation for photosynthesis?

  • A6CO+CHO->6HO+6O
  • BCHO+6O->6CO+6HO
  • C6CO+6HO->CHO+6O
  • D6O+6HO->CHO+6CO

Q12:

When it is not required by the plant, glucose can be converted into different molecules for storage. What is the main molecule glucose is converted into for storage in plants?

  • AGlycogen
  • BChlorophyll
  • CAmino acids
  • DFructose
  • EStarch

Q13:

How do plants obtain the majority of the water they require for photosynthesis?

  • AIt diffuses from the soil to the stem and is transported up to the flowers.
  • BIt is moved from the soil to the root by osmosis and transported up the plant to the leaves.
  • CIt diffuses from the surrounding air into the plant through the open stomata.
  • DIt is actively transported from the soil to the root and moved up the plant to the leaves.

Q14:

The diagram shows part of the word equation for photosynthesis.

Complete the equation with the correct reactants and products.

  • A(Carbon dioxide + glucose) (water + oxygen)
  • B(Fatty acids + oxygen) (carbon dioxide + lipids)
  • C(Oxygen + water) (sucrose + carbon dioxide)
  • D(Carbon dioxide + water) (oxygen + glucose)

Q15:

The diagram shows the basic structure of a palisade cell.

What letter represents the organelle in which photosynthesis occurs?

  • AB
  • BC
  • CD
  • DA

What is this organelle called?

  • AChloroplast
  • BCell wall
  • CNucleus
  • DVacuole

Q16:

The given diagram shows a set of guard cells surrounding a stoma when it is open and when it is closed.

Fill in the blanks: Stomata will close at night because there is no light, so cannot occur and is not required.

  • Aphotosynthesis, oxygen
  • Bphotosynthesis, carbon dioxide
  • Crespiration, carbon dioxide
  • Drespiration, oxygen

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.