Cambridge IGCSE Biology - 0610 - Core Paper 1 2014 Winter Zone 2

The diagram shows how a seed changes after it is planted in well-watered soil.
Which characteristics of living things are demonstrated by this sequence?

The diagram shows the body plan of an invertebrate animal.
To which group does the animal belong?

The diagram shows some cells.
Where are these cells found?

The diagram shows an animal. Use the key to identify the animal.
1. front limbs with five fingers ....................... go to 2
front limbs with four fingers ....................... go to 3
2. skin with spots .................................. A
skin without spots ............................... B
3. tail with fins ................................... C
tail without fins ................................. D

For which process is a root hair cell adapted?

Which features are possessed by all plant cells? [Table_1]

Which substance is transported by haemoglobin?

Which processes produce a continuous space for the flow of water in xylem vessels?
[Table_1]

Which characteristics are correct for both osmosis and diffusion? [Table_1]

An experiment was carried out to investigate the effect of pH on enzyme action. The graph shows the results.

What are the labels for the x-axis and the y-axis?

What happens to most enzymes above 60°C?

What is a function of phloem?

Some liquid is collected from the xylem in the stem of a plant. What is present in the liquid?

Which simple molecules are the basic units of protein?

What is the function of the anus?

The diagram shows part of the trunk of a small tree with a ring of bark removed. Removing the ring of bark takes away phloem but leaves the xylem intact.
What effect will removing the bark have on the two branches?

The diagram shows human blood as seen through a light microscope.
A person’s blood is unable to clot.
Which component of the blood is \textbf{not} functioning properly?

Why is yeast used in bread-making?

What are the products of anaerobic respiration in muscles?

The oxygen carrying capacity of the blood of smokers is less than that of non-smokers. Which component of cigarette smoke causes this?

Which actions straighten the arm at the elbow joint? [Table_1]

The table shows a student’s water losses on a cool day.
[Table_1: water loss]
On a hot day the student’s water intake was the same as on the cool day.
On the hot day, which water losses would increase and which would decrease?

After a meal containing carbohydrates, which row shows the changes in concentration of glucose and urea in the blood as it passes through the liver?
[Table_1]

To avoid extinction of a rare plant species, a botanical garden keeps a collection of seeds, known as a seed bank. Which condition will prevent these seeds germinating whilst in storage?

A plant has two different alleles of a gene resulting in it having a green seed. Which row describes the phenotype and genotype of the seeds of this plant? [Table_1]

Which response is a result of geotropism?

The diagram shows a flower in vertical section.
Which numbered parts of the flower continue to develop after fertilisation?

Which sex chromosomes are present in all mature human sperm cells?

What may be defined as 'an increase in dry mass'?

The shape of a person’s earlobes is determined by a single gene. This gene has dominant and recessive alleles. The allele for detached earlobes is dominant to the allele for attached earlobes.
The diagram shows the inheritance of earlobe shape in a family.

What is the probability of the next child from the same parents having detached earlobes?

The diagram shows energy passing through an ecosystem. Which arrow shows energy leaving the food web?

The diagram shows a plant that is producing small plantlets.
Which statement about the plantlets is correct?

The diagram shows some feeding relationships in a woodland area.
Which of the labelled animals are in competition with seed-eating insects for their food?

The diagram shows a food web.
Which organisms will increase in number, if the number of snakes increases?

The diagram shows the carbon cycle.
Which process produces carbon dioxide from substances made by photosynthesis millions of years ago?

The diagram shows the water cycle.

Which process is represented by X?

Over-use of fertilisers on farmland causes the chemicals in the fertilisers to be washed into ponds and lakes. This causes eutrophication resulting in the following events.

1 algae grow
2 fish die
3 bacteria grow
4 oxygen decreases

What is the correct sequence of these events?

The graph shows part of a growth curve for a bacterial population.

What is missing from the graph?

The concentration of a pesticide in the tissues of the organisms in the following food chain was measured.
plants → small fish → large fish → birds of prey
Which bar on the chart represents the large fish?

Which activity will be least likely to lead to the extinction of species?