Grade 10: Assessment Test Paper 1

Which enzyme breaks down fat?

• amylase

• carbohydrase

• lipase

• protease

Which factor below is NOT necessary for photosynthesis to occur?

• carbon dioxide

• chlorophyll

• oxygen

• water

Which organelle in plant cells contains the pigment that makes leaves green?

• cell wall

• chloroplast

• mitochondria

• vacuole

Which gas always ENTERS a leaf?

• carbon dioxide

• nitrogen

• oxygen

• water vapour

What us the total number of teeth in the mouth of an adult male?

• 16

• 26

• 32

• 38

Which process pushes a bolus of food down the esophagus?

• absorption

• assimilation

• chemical digestion

• peristalsis

Sunlight and chlorophyll are needed for photosynthesis. What compounds are needed for this reaction to occur?

• carbon dioxide and water

• glucose and water

• oxygen and water

• oxygen and carbon dioxide

In the digestive system, which structure produces enzymes that act upon carbohydrates, fats and proteins?

• esophagus

• pancreas

• stomach

• liver

Which of the products of digestion are absorbed into the part labelled Number 4?

• amino acids and glucose

• amino acids and fatty acids

• fatty acids and glycerol

• glucose and glycerol

If plant cells are placed in distilled water, they will swell up and become turgid. What term describes the process by which water moves into the cell?

• active transport

• osmosis

• plasmolysis

• transpiration