Unit Test Animal Nutrition and Plant Nutrition

The following symptoms can be caused by a dietary deficiency:

● bone pain

● dental problems

● fragile bones

● skeletal deformities

A lack of which nutrient is most likely to cause these symptoms?

• iron

• protein

• vitamin C

• vitamin D

What is the purpose of chemical digestion?

• to absorb minerals such as calcium and iron

• to pass food out as faeces

• to break down large molecules of nutrients into smaller molecules

• to secrete enzymes

Which occurs during digestion?

• 
• 
• 
• 

Which word equation represents photosynthesis?

• carbon dioxide + water → sugar + oxygen

• oxygen + water → sugar + carbon dioxide

• sugar + carbon dioxide → water + oxygen

• sugar + oxygen → water + carbon dioxide

The diagram shows a section through part of a leaf as seen under a light microscope. What are the labelled parts?

• 1: Cuticle, 2: phloem

• 1: cuticle, 2: xylem

• 1: epidermis. 2: phloem

• 1: epidermis, 2: xylem

Which part of a leaf contains the pigment needed for photosynthesis?

• cuticle

• mesophyll cells

• phloem cells

• stomata

The diagram shows a cross-section through a leaf. What is the cell labelled X?

• epidermis

• guard cell

• palisade mesophyll

• spongy mesophyll

In plants, which ions are used to make amino acids?

• magnesium

• nitrates

• phosphates

• potassium

Which condition can be caused by a deficiency of vitamin C?

• constipation

• obesity

• scurvy

• anemia

The nutrient ions present in four different soils are shown.

Which soil would be best for growing healthy, green plants?

• soil A

• Soil B

• Soil C

• Soil D