Week 4-Grade 7 (Photosynthesis and cellular respiration)

Define the term 'Photosynthesis'.

• The process by which plants use sunlight to synthesize foods with the help of chlorophyll.

• The process of breaking down food to release energy.

• The process of converting water into oxygen.

• The process of absorbing nutrients from the soil.

What is a 'Chloroplast'?

• A type of animal cell

• A structure in plant cells responsible for photosynthesis

• A component of the human nervous system

• A type of bacteria

What is a 'Chemical Equation'?

• A representation of a chemical reaction using symbols of the elements.

• A mathematical equation involving chemical elements.

• A diagram showing the structure of a molecule.

• A list of chemical elements in alphabetical order.

Plants are considered producers because they:

• Consume other organisms for energy

• Produce their own food through photosynthesis

• Rely on animals for nutrients

• Decompose organic matter

How do plants make their food?

• Through photosynthesis

• By absorbing nutrients from the soil

• By consuming other organisms

• Through respiration

Name the plant part and organelle where photosynthesis takes place.

• Root and mitochondria

• Leaf and chloroplast

• Stem and nucleus

• Flower and ribosome

Identify the starting and ending materials of photosynthesis.

• Carbon dioxide and water; Glucose and oxygen

• Oxygen and glucose; Carbon dioxide and water

• Nitrogen and water; Glucose and oxygen

• Glucose and oxygen; Nitrogen and water

What is photosynthesis?

Photosynthesis takes place in the ________.

• chloroplast.

• mitochondria.

• nucleus.

• ribosome.

Which of the following is used by plants to make food molecules during photosynthesis?

• Oxygen

• Sunlight

• Nitrogen

• Water