Cambridge IGCSE Biology - 0610 - Core Paper 1 2011 Winter Zone 1

Which characteristic of living organisms is described by the following definition?
'The ability to detect changes in the environment and make responses'.

What is the correct order of arthropod groups, from those with most legs to those with fewest legs?

Which animal is an annelid?
1. has legs .......................................... go to 2
has no legs ....................................... go to 3
2. has six legs...................................... organism A
has eight legs ................................. organism B
3. has a shell ...................................... organism C
has no shell .................................... organism D

Root hair cells are found on plant roots.
Which feature would be present in a root hair cell but extit{not} a sperm cell?

Which structure is found in a palisade cell but not in a liver cell?

Which cell shows the position of the nucleus correctly?

What are the levels of organisation of:
• the wall of a villus,
• the small intestine?
[Table_1]

Phloem is an example of .

The diagram shows a fetus attached by the placenta to the uterus wall of the mother.

By which process do all substances pass between the fetus and the mother in the placenta?

What happens in osmosis?

A human digestive enzyme breaks down its substrate at a fast rate at 35°C.
What would occur if the enzyme and substrate were kept at 75°C?

The diagram shows the action of amylase.
What is the function of the enzyme amylase?

Which is an incisor tooth?

Small molecules are used as the basic units in the synthesis of large food molecules.
Which statement is correct?

The roots of plants take up nitrates from the soil. What are the nitrates used to make?

Dietary fibre passes through several structures after leaving the stomach. In which order does the dietary fibre pass through these structures?

In what form does a plant absorb and lose water?
[Table_1]

The diagram shows a plant shoot and the same shoot six hours later.
Which change in environmental conditions could cause this change in the appearance of the shoot?

An experiment is set up to investigate the uptake of oxygen by germinating seeds.

What happens to the levels at X and Y?

Which group contains substances that are all carried in the blood?

Which process does not release carbon dioxide to the atmosphere?

Which materials are excreted by kidneys and lungs?
[Table_1]

The graph shows the variation in a person's body temperature over a period of time.
Which temperature change is likely to cause most sweating?

The diagram shows a germinated bean seed with a horizontal radicle. This is placed on a slowly rotating disc and is left for three days.
Which diagram shows the appearance of the radicle after three days?

Which type of cells do all sense organs contain?

The diagram shows the early growth of a green plant. What is occurring?
(Table 1 shows mitosis and development with a key: \( \checkmark = \) occurs, \( \times = \) does not occur.)

The diagram shows a neurone.

Which structures could be found at X and Y?

The diagram shows a potato tuber that developed from the stem of a parent potato plant. Three shoots are starting to grow from the tuber.

How do the genotypes of the shoots compare with the genotypes of the tuber and of the parent?

The diagram shows the male reproductive system.
What is the tube labelled X?

Which is not growth of an organism?

What are the chromosomes for the two sexes in human beings? [Table_1]

The colour of a mouse’s fur is controlled by a single pair of alleles.
A mouse with black fur was crossed with a mouse with white fur. All the offspring had black fur.
What would be the most likely ratio in several litters of offspring if two of these black offspring were crossed?
[Table_1]

The diagram shows a food web.
At which level does energy from the Sun enter the food web?

The diagram gives a simplified scheme for energy flow through an ecosystem.
Which processes do the labelled arrows represent?

The food chain shows the number of animals relying on two bushes for their survival.
At which step in the food chain do the organisms have the greatest amount of energy?

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

The diagram shows part of the carbon cycle.

Which numbers represent excretion?

The graph shows the rate of growth for a population of herbivores.
Which is the exponential (log) phase in the growth of this population?
[Image_1: Graph showing the rate of growth for a population of herbivores with phases A, B, C, D labeled on the curve]

The diagram shows four places on a river, where water samples were taken.

Which graph shows oxygen concentrations in the river?
[Graph showing oxygen concentrations at points W, X, Y, Z]

Different pesticides were tested to see how poisonous they were to fish. Scientists found the concentration of pesticide that killed 50% of the fish within four days.
The table shows the results of the tests.
[Table_1]
Which pesticide was the most dangerous to the fish?