SECOND TERM IGCSE YEAR 10 BIOLOGY OBJECTIVES EXAM

Which of the following is the largest gland in an adult man?

• Thymus

• Liver

• Thyroid

• Pancreas

What enzyme is found in saliva that starts digesting carbohydrates?

• amylase

• chyme

• pepsin

• bile

What TWO process take place in the mouth?

• The adding of saliva

• Tongue breaks down food

• Chewing to break down food

• Acid is added

Which part of the digestive system is number 5?

• esophagus
• large intestine
• small intestine
• liver

In the intestine, food materials are absorbed through

• villi

• subtentacular cells

• sub-mucosa

• gastric glands

uptake of small nutrient molecules; the third stage of food processing 

• nutrition 
• ingestion 
• digestion 
• absorption 

• A

• B

• C

• D

Which are the vascular tissues in plants that are responsible for transporting substance around the plant? Select all that apply.

• Leaves

• Xylem

• Roots

• Phloem

Which are examples of autotrophs? Select all that apply.

• Bacteria

• Humans

• Plants

• Algae

The equation for photosynthesis is

• oxygen + water --> glucose + carbon dioxide
• oxygen + glucose --> carbon dioxide + water
• carbon dioxide + water --> glucose + oxygen
• carbon dioxide + glucose --> oxygen + water