IGCSE Biology Paper-3: Specimen Questions with Answers 247 - 249 of 358
Passage
A typical leaf contains different types of cells.
Represents a typical leaf.
Question 247 (2 of 2 Based on Passage)
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Short Answer▾State the name of the thin, transparent layer of wax which covers the surface of most leaves.
Explanation
Each leaf bears upper and lower epidermis. Each of them consists of single layer of compactly arranged parenchymatous cells. Exception – multilayered upper epidermis is found in Ficus elastica, Piper. Cuticle is present on both surfaces but cuticle of upper epidermis is thicker.
Passage
shows a diagram of the heart.
Question 248 (1 of 4 Based on Passage)
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Short Answer▾State one function of the liver and one function of the small intestine.
Function of the liver …
Function of the small intestine …
Explanation
Function of Liver
Production of bile, which helps carry away waste and break down fats in the small intestine during digestion. Production of certain proteins for blood plasma. Production of cholesterol and special proteins to help carry fats through the body.
Function of Small Intestine
The small intestine is chiefly involved in the digestion and absorption of nutrients. It receives pancreatic secretions and bile through the hepatopancreatic duct which aid with its functions.
Question 249 (2 of 4 Based on Passage)
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Short Answer▾Describe how the protein in food is digested in the alimentary canal.
Explanation
