DA Biology Unit 1 Photosynthesis Key Terms

What is the green coloured chemical in chloroplasts that helps absorb light energy during photosynthesis?

• Chlorophyll

• Chloroplast

• Cuticle

• Stomata

What is the structure in the cytoplasm of plant cells that contains chlorophyll and carries out photosynthesis?

• Epidermis

• Chloroplast

• Palisade mesophyll

• Spongy mesophyll

What is the term for when the rates of photosynthesis and respiration in a plant are equal, resulting in no net gas exchange?

• Limiting factor

• Compensation point

• Gas exchange

• Destarch

What is the waxy layer on the outside surface of a plant epidermis that allows light through and reduces water loss?

• Cuticle

• Stomata

• Chlorophyll

• Epidermis

What is the procedure called that removes starch from plant leaves?

• Destarch

• Gas exchange

• Photosynthesis

• Limiting factor

What is the outer layer of cells in a plant called?

• Palisade mesophyll

• Spongy mesophyll

• Epidermis

• Chloroplast

What is the movement of gases between an organism and its surroundings called?

• Photosynthesis

• Gas exchange

• Destarch

• Limiting factor

What is any factor called that is at a level less than its optimum and slows or limits a process like photosynthesis?

• Compensation point

• Limiting factor

• Cuticle

• Stomata

What is the upper layer of mesophyll cells in the centre of a leaf that contains many chloroplasts and is the main site of photosynthesis?

• Spongy mesophyll

• Palisade mesophyll

• Epidermis

• Cuticle

What is the chemical process in green plants that uses light energy to convert carbon dioxide and water into sugars and oxygen?

• Gas exchange

• Photosynthesis

• Destarch

• Limiting factor