Carib Quiz - Biology
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Biology
1. Question

Which one of the following foods contains the most energy per 100 g?

2. Question

An enzyme which has an optimum pH of 3 will function best in the:

3. Question

Enzymes are called biological catalysts because they:

4. Question

The biceps and triceps are an antagonistic pair of muscles because:

5. Question

Which one of the following structures is responsible for controlling entry and exit of materials into and out of the cell?

6. Question

In an ecosystem a population is:

7. Question

Which of the following statements about diffusion is NOT true?

8. Question

Seeds are dispersed from the parent plant:

9. Question

Plant stems grow towards a light source.This is an example of:

10. Question

Which of the following is NOT found dissolved in plasma?

11. Question

Vegetables like cauliflower, cabbage and broccoli have been bred from the original wild brassica plant by:

12. Question

In hot conditions the surface blood vessels in the skin undergo vasodilation. This allows:

13. Question

In a food chain a plant is a producer because it produces:

14. Question

An alternate form of a gene is called an:

15. Question

Vaccination causes a person′s immune system to produce:

16. Question

The white blood cells that produce antibodies are called:

17. Question

A cell in an embryo divides by mitosis three times in succession. How many cells will be formed from these divisions?

18. Question

A collection of several tissues which carry out a particular function is called:

19. Question

The length of an insect such as a grasshopper increases in steps.This is because:

20. Question

A relationship between two organisms where one organism derives benefits from the relationship and the other organism derives no benefit, but is not harmed, is called:

21. Question

In pea plant size, tall is dominant to dwarf.You cannot tell whether a tall plant is homozygous (TT) or heterozygous (Tt).To find its genotype you perform a test cross.This involves:

22. Question

All of the following can affect the size of a population EXCEPT for:

23. Question

A species of mouse has 32 chromosomes in its muscle cells.What will be the numbers of chromosomes in the mouse′s skin cells and sperm cells?

24. Question

In the diagram of a section through a synovial joint, the part labelled X represents the:

25. Question

Leaves are thin and flat:

26. Question

Which of the following does NOT play a role in evolutionary change?

27. Question

When a person who has diabetes injects himself with insulin it:

28. Question

The correct pathway of water through a plant is:

29. Question

Malaria is spread by:

30. Question

A typical soil contains mineral particles, humus, water, air and:

31. Question

Enzymes catalyse specific reactions by having an active site where the substrate fits.This theory is called:

32. Question

Which of the following substances contains the elements carbon, hydrogen, oxygen and nitrogen?
Ⅰ DNA
Ⅱ carbohydrates
Ⅲ lipids
Ⅳ proteins

33. Question

Which one of the following is NOT a function of the placenta?

34. Question


The animals shown in the diagram were identified using a dichotomous key based on the visible characteristics listed below:
Ⅰ body shape
Ⅱ number of legs
Ⅲ number of wings
Ⅳ number of eyes
Ⅴ number of antennae
Which characteristics could be used to divide the animals into two groups?

35. Question

Which of the following conditions is NOT caused by a poor diet?

36. Question

All of the following are components of an ecosystem EXCEPT for:

37. Question

The wall of the left ventricle is thicker than that of the right ventricle because:

38. Question

The part of the brain that processes information from the sense organs is the:

39. Question

Which of one the following statements about phloem cells is NOT true?

40. Question

Asexual reproduction produces:

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