IGCSE Biology Paper-3: Specimen Questions with Answers 43 - 47 of 358

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Question 43

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Metabolism is the main characteristic of life. Describe two other traits which are found in living organism

Explanation

(i) Cellular structure- It is a defining property of living beings. Each living being is made up of one or more cells.

(ii) Growth- it is an irreversible increase in the mass of on individual.

Passage

Figure below shows dispersal method of plant.

Various Dispersal Methods like Milkweed and Dandelion

Question 44 (1 of 2 Based on Passage)

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Which type of dispersal method is this?

Explanation

Given picture shows Dispersal method by wind in plants.

Question 45 (2 of 2 Based on Passage)

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What is the mechanism of fruit and seed dispersal by animals?

Explanation

Some animals digest only juicy parts of the fruit and pips are pass by animal՚s digestive system. After excretion, it may form a new plant. Birds are also useful for dispersal method by their droppings. Some plant seeds have hook, which can easily transfer by animal՚s fur.

Question 46

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What are the main types of asexual reproduction?

Explanation

Binary Fission

  • Budding
  • Vegetative reproduction
  • Spore
  • Fragmentation

Passage

Figure shows changes in the population of yeast during the production of beer.

Graph Represents Changes in the Population

Question 47 (1 of 3 Based on Passage)

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Write an equation, in either words or chemical symbols, for aerobic respiration.

Explanation

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