Cambridge IGCSE Biology - 0610 - Core Paper 1 2010 Summer Zone 2

The diagram shows some liver cells as they appear under the microscope.

How many cell walls can be seen?

Which row shows the most likely number of chloroplasts in three types of cell in a leaf? [Table_1]

Which row shows the structures present in plant and animal cells? [Table: ``]

Which structure is at a different level of organisation from the other three?

What is defined as the chemical reactions that break down food molecules in cells to release energy?

The diagram shows a section through a flower.
Using the key, identify this flower.
1 sepals present ........................................ go to 2
sepals absent ........................................ go to 3
2 stamens attached to petals ........................ A
stamens not attached to petals ................ B
3 stigma above anthers ............................... C
stigma below anthers ............................... D

Which diagram shows one organ only?

The diagram shows an arthropod animal.

Which features are characteristic of all arthropods?

Which solutions are used for testing for protein, reducing sugar and starch?
[Table_1]

On a dry, sunny day, how does water vapour move through the stomata of a leaf?

The diagram shows an experiment using a potato.

Which shows the result of the experiment after 24 hours?

A protease is added to a suspension of egg protein in a test-tube and kept at 37°C.
After 8 minutes, the protein changes from cloudy to transparent.
Which product, or products, will now be present in the test-tube?

Which condition can sometimes be prevented by eating plenty of fresh fruit and vegetables?

The graph shows how the rate of an enzyme-controlled reaction changes with temperature.
What is happening within the temperature range marked X?

The diagram shows the stem of a plant. A strip of the outer tissue including the phloem has been removed. How is transport in the plant affected?

The table shows some of the features of respiration.
Which row is correct for anaerobic respiration?
[Table_1]

Four words are shown below.
alcohol anaerobic sugar yeast
These words can be used in the spaces P, Q, R and S to complete the sentence below.
‘In brewing and bread making, respiration takes place. The micro-organism called ……P……
uses ……Q…… as a source of food. The product of this ……R…… respiration is ……S…….’
Which combination of words correctly completes the sentences?

The photograph shows human blood cells as seen under a microscope at high power.

Which are red cells?

The diagram shows someone blowing up a balloon.
What percentage of the gas in the balloon is carbon dioxide?

What is a description of transpiration?

What happens when the body temperature rises above normal?[Table_1]

The diagram shows some of the muscles and bones of the human arm.
When muscle X contracts, what happens to the arm and what happens to muscle Y?

The diagram shows a section through part of the human eye.
When a person looks at an object which is close to their eye, which of the following takes place? [Table_1]

Which organ produces urea?

What term is used for the transference of a gene from one organism to another?

The diagram shows the female reproductive system. What is the function of the part labelled X?

The diagram shows some of the stages in the germination of a seed. The figures show the total mass at each stage.
Which process causes the increase in mass between stage 1 and stage 2?

The diagram shows the changes which take place during a woman's menstrual cycle.

What is occurring at the time of ovulation?

The graph shows how dry mass of a plant changes with time.
Where on the graph is growth occurring?

The diagram shows part of the carbon cycle. Which process occurs at Y?

What makes nuclear fall-out dangerous to living organisms?

The diagram shows part of the water cycle. Where is osmosis occurring?

The family tree shows the inheritance of the ability to taste a certain substance. The allele for the ability to taste this substance is dominant to the allele for the inability to taste it.

What is the chance of the second child of Peter and Hannah being a 'non-taster'?

The diagram shows the flow of energy in a food chain.
Which organism is the producer in the food chain?

A very large area of land has been cleared of rainforest and planted with soybean. What result of deforestation will encourage the growth of the soybean plants?

The diagram shows part of a section through a leaf.

The arrow represents part of the

The diagram shows a food web. Which organisms occupy the same trophic level?

The map shows a river flowing into the sea. The river is polluted by untreated sewage.
At which labelled point will the oxygen content of the water be lowest?

The size of the arrows shows the approximate, relative amounts of energy passing from one stage to the next in a food chain.
Which chain represents the energy losses between trophic levels?

The diagrams show the current population sizes for people below 50 years of age in four different countries.
Which country will be likely to have the largest population of people 60 – 70 years of age in 20 years time?