CIE Biology Paper-3: Specimen Questions 44 - 50 of 230

Passage

Figure below shows dispersal method of plant.

Image of various dispersal methods like milkweed and dandelion

Image of various dispersal methods like milkweed and dandelion

Given Figure shows a type of dispersal method found in plants

Question number: 44 (1 of 2 Based on Passage) Show 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 number: 45 (2 of 2 Based on Passage) Show Passage

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Which type of dispersal method is this?

Explanation

Given picture shows Dispersal method by wind in plants.

Question number: 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

Graph represents changes in the population

Found the labeled part X in above graph, which represents changes in the population of the yeast during production of beer.

Question number: 47 (1 of 3 Based on Passage) Show Passage

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What is the scientific name of yeast?

Explanation

Saccharomyces cerevisiae

Question number: 48 (2 of 3 Based on Passage) Show Passage

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

Explanation

Glucose+OxygenCarbondioxide+Water+Energy

C6H12O6+6O26CO2+6H2O+2900kJ/mol

Question number: 49 (3 of 3 Based on Passage) Show Passage

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On Figure name the phase labelled X.

Explanation

Lag phase

Question number: 50

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By which process carbon is remove from atmosphere

Explanation

Photosynthesis

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