Jeffrey Piggott
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Revision quiz for 0654 IGCSE Coordinated Sciences Topic B1, B2 & B3.

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Jeffrey Piggott
Criado por Jeffrey Piggott mais de 7 anos atrás
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IGCSE B1-B3 Revision Quiz

Questão 1 de 8

1

Match each description with the correct characteristic of a living organism:
Taking in of nutrients which are organic substances and mineral ions, containing raw materials or energy for growth and tissue repair, absorbing and assimilating them.
The chemical reactions that break down nutrient molecules in living cells to release energy.
A permanent increase in size and dry mass by an increase in cell number or cell size or both.
Removal from organisms of toxic materials, the waste products of metabolism (chemical reactions in cells including respiration) and substances in excess of requirements.
An action by an organism or part of an organism causing a change of position or place.
The ability to detect or sense changes in the environment (stimuli) and to make responses.
The processes that make more of the same kind of organism.

Arraste e solte para completar o texto.

    Nutrition
    Respiration
    Growth
    Excretion
    Movement
    Sensitivity
    Reproduction

Explicação

Questão 2 de 8

1

Which statement about enzymes is always correct?

Selecione uma das seguintes:

  • They are made of carbohydrate.

  • They work best at high temperatures.

  • They speed up chemical reactions.

  • They work inside living cells.

Explicação

Questão 3 de 8

1

A species of bacterium lives in acidic, hot springs at a temperature of 90 °C.
Which conditions will best suit the enzymes of this bacterium?

Selecione uma das seguintes:

  • 30 °C and pH 4

  • 30 °C and pH 9

  • 80 °C and pH 4

  • 80 °C and pH 9

Explicação

Questão 4 de 8

1

Which features are found in mammals but not in other vertebrates?

Selecione uma das seguintes:

  • claws and hair

  • claws and lungs

  • hair and milk

  • lungs and milk

Explicação

Questão 5 de 8

1

Which cells produce starch in their cytoplasm?

Selecione uma das seguintes:

  • all animal cells

  • all plant cells

  • some animal cells

  • some plant cells

Explicação

Questão 6 de 8

1

The binomial name for a tiger is Panthera tigris and for a lion, Panthera leo.
What do these scientific names show?

Lions and tigers:

Selecione uma das seguintes:

  • have many features in common.

  • can interbreed.

  • are genetically identical.

  • are both in the same species

Explicação

Questão 7 de 8

1

Which diagram shows the appearance of a plant cell several minutes after it has been placed in a
concentrated solution of sugar?
(0610 June 2009 Paper 1)

Selecione uma das seguintes:

  • A

  • B

  • C

  • D

Explicação

Questão 8 de 8

1

The dots represent molecules of a gas in four tubes at the beginning of an experiment.
In which tube will more molecules move from X to Y than in the opposite direction?
(June 2009 QP 1, Q10)

Selecione uma das seguintes:

  • A

  • B

  • C

  • D

Explicação