IGCSE Paper 1and 2 questions on Characteristics and classification of living organisms

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1) The diagram illustrates some of the processes carried out by living organisms.

Which characteristic of living organisms is represented by arrow X?

A excretion

B nutrition

C respiration

D sensitivity

2) What is a correct way of naming a species, according to the binomial system?

A Homo sapiens

B Homo Sapiens

C human being

D sapiens

3) The diagram shows four arthropods.

How many of these arthropods are insects?

A 1                             B 2                             C 3                             D 4

4) The key can be used to distinguish between four different chemical substances.

Use the key to identify which substance could be a protein.

1 contains the element carbon ........................................... go to 2

   does not contain carbon .................................................. A

2 contains the element nitrogen ......................................... B

   does not contain nitrogen ............................................... go to 3

3 gives a positive result with Benedict’s test ...................... C

   gives a negative result with Benedict’s test .................... D

5) All fish, all birds and all mammals are

A animals with internal fertilisation.

B carnivores.

C vertebrates.

D warm-blooded animals.

6) The statements describe four different plants.

Which plant must be a monocotyledon?

A The flowers are wind-pollinated.

B The flowers each have five petals.

C The leaves are large with a clear network of veins on them.

D The leaves have parallel veins.

7) The diagram shows an animal.

Use the key to identify the animal.

1 has two wings ...................................................... go to 2

   has four wings ..................................................... go to 3

2 has antennae much shorter than legs ................. A

   has antennae about the same length as legs ...... B

3 has feathery antennae ......................................... C

   has smooth antennae .......................................... D

8) The diagram shows an animal.

Use the key to identify this animal.

1 body covered with scales ...................... go to 2

   body covered with hair .......................... go to 3

2 has a rounded bill .................................. A

   has a pointed bill ................................... B

3 has webbed feet .................................... C

   does not have webbed feet ................... D

9) The diagram shows a leaf on a plant.

Which characteristic of life is represented by this diagram?

A excretion

B nutrition

C respiration

D sensitivity

10) The diagram shows how Homo sapiens (modern people) could have evolved from earlier ancestors.

Which statement about modern people and their ancestors is correct?

A They are in the same species and the same genus.

B They are in the same species but not the same genus.

C They are in the same genus but not the same species.

D They are neither the same species nor the same genus.

11) The diagram shows an insect.

What is the insect?

1 insect has no wings ........................................... go to 2

   insect has wings ................................................ go to 3

2 legs longer than, or as long as the body ........... A

   legs shorter than the body ................................. B

3 abdomen long and thin ...................................... C

   abdomen shorter and wider ............................... D

12) Which characteristic do all living organisms show?

A breathing

B excretion

C photosynthesis

D tropism

13) The diagram shows some animal cells, as seen under the microscope.

What will be present at X?

A one cell membrane

B one cell wall

C two cell membranes

D two cell walls

14) The diagram shows an animal.

What is the animal?

1 animal with a vertebral column ....................................... vertebrate

   animal with an exoskeleton ............................................ go to 2

2 no distinct head, thorax and abdomen ........................... A

   distinct head, thorax and abdomen ................................ go to 3

3 eye occupies less than one third of the head ................. B

   eye occupies more than one third of the head ................ go to 4

4 wings are wider than they are long ................................. C

   wings are longer than they are wide ............................... D

15) Some yeast, sugar and water are mixed in a test-tube. The diagrams show the test-tube at the start and after one hour.

16) Which process causes this change?

A growth

B reproduction

C respiration

D sensitivity

17) Which name is given to a group of individuals that can reproduce to produce fertile offspring?

A a genus

B a kingdom

C a species

D an organ system

18) Use the key to identify the animal shown in the diagram.

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