CaribQuiz - Biology
Biology
1. Question

Which one of the following is the best way to measure growth of an organism?

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2. Question

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

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3. Question

In a plant cell, turgor is caused by:

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4. Question

Which of the following are natural barriers to infection?
Ⅰ tears
Ⅱ skin
Ⅲ stomach acid
Ⅳ mucus

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5. Question

Asexual reproduction produces:

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6. Question

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

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7. Question

Which of the following statements about diffusion is NOT true?

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8. Question

Anaerobic respiration takes place:

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9. Question

Single-celled organisms do not need a transport system because:

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10. Question

Malaria is spread by:

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11. Question

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

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12. Question

In humans, an egg cell is released from an ovary approximately every:

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13. Question

A student observed a plant cell through a microscope and made an accurate drawing of the cell. If her drawing was 80 mm in diameter and had a magnification of ×2000, what was the real diameter of the cell?

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14. Question

The following are all features of insect-pollinated flowers EXCEPT for:

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15. Question

Osmosis is:

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16. Question

All of the following are organelles EXCEPT for:

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17. Question

A lack of vitamin D in the diet causes:

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18. Question

Which one of the following is a biological component of a pond ecosystem?

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19. 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?

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20. Question

Simple sugars are called monosaccharides because:

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21. Question

Active transport:

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22. Question

The following diagram shows a model used to show how breathing movements take place:

Which part of the model represents the diaphragm?

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23. Question

75 g of freshly dug soil was placed in an oven at 105 ℃ for 24 hours. It was allowed to cool, then reweighed. If the final mass of the dry soil was 66 g, what was the % water content of the original soil sample?

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24. Question

All of the following are possible consequences of global warming EXCEPT for:

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25. Question

Which one of the following diagrams illustrates short-sightedness?

(F = Focal point)

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26. Question

Vaccination causes a person′s immune system to produce:

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27. Question

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

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28. Question

Proteins are:

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29. Question

The correct pathway of water through a plant is:

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30. Question

All of the following have endoskeletons EXCEPT for:

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31. Question

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

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32. Question

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

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33. Question


The site of reabsorption of MOST of the water from the filtrate.

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34. Question

All of the following processes result in energy loss from an ecosystem EXCEPT for:

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35. Question

Which of the following routes taken by blood in the body is correct?

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36. Question

The optimum temperature for enzyme action is:

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37. Question

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

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38. Question

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

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39. Question

Which of the following are examples of environmental variation in humans?
Ⅰ hair colour
Ⅱ height
Ⅲ intelligence
Ⅳ body mass

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40. Question

The white blood cells that produce antibodies are called:

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