compound organism organ tissue. The diagram below shows muscle cells from the wall of the human intestine.

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Maximillian Spencer Harvey
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1 Level 6 Biology Questions 1. (a) The diagram shows a group of cells from the lining of the mouth. Give the name and function of part P. name of part P function of part P Which word describes this group of cells? Tick the correct box. compound organism organ tissue (b) The diagram below shows muscle cells from the wall of the human intestine. Muscle cells can contract. Give one reason why muscles are needed in the intestine. Moulsham High School 1

2 (iii) Other cells in the intestine produce enzymes. What effect do enzymes in the intestine have on nutrients such as protein? Which of the following is required in the diet to keep food moving through the intestine? Tick the correct box. fat fibre protein starch maximum 6 marks 2. Suzi investigated how temperature affects the number of bubbles produced by waterweed in one minute. She set up the experiment as shown below. When the temperature of the water was 10 C the wat erweed did not produce bubbles. Moulsham High School 2

3 (a) Suzi increased the temperature of the water in the water-bath to 20 C. The waterweed started to produce bubbles. She waited two minutes before starting to count the bubbles. Explain why she waited for two minutes before she started to count the bubbles (b) Suzi counted the number of bubbles produced at six different temperatures. Her results are shown on the graph below C D 10 B E number of bubbles 5 produced (per minute) A temperature of water-bath (ºC) F Draw a smooth curve on the graph. Use your curve to find the temperature of water which produced the most bubbles per minute.... C (c) Suzi predicted that the higher the temperature the more bubbles would be produced. Which points on the graph support Suzi s prediction?... Moulsham High School 3

(d) Suzi s data does not show clearly the exact temperature at which most bubbles were produced. How could she improve the data she collects to find this temperature?...... maximum 5 marks 3.

4 (d) Suzi s data does not show clearly the exact temperature at which most bubbles were produced. How could she improve the data she collects to find this temperature? maximum 5 marks 3. (a) Plants need nitrogen compounds for growth. Give the name of the type of plant cell that absorbs water and nitrogen compounds from the soil.... (b) The photograph shows a pitcher plant. Pitcher plants get nitrogen compounds from insects. They digest insects in leaves shaped like containers called pitchers. Moulsham High School 4

5 In the bottom of the pitcher there is a liquid. Insects are attracted to the plant. They fall into the liquid. The inner surface of the pitcher is very smooth and slippery with downward pointing hairs as shown below. Suggest the function of the smooth, slippery surface with downward pointing hairs (c) There are useful bactieria living in the liquid. They produce enzymes to help digest the insects. Both the bacteria and the pitcher plant absorb some of the products of digestion. How does the number of insects that fall into the liquid affect the number ot these useful bacteria? (d) Pitcher plants also have ordinary green leaves where photosynthesis takes place. Complete the word equation for photosynthesis water glucose marks Moulsham High School 5

6 Glucose is a carbohydrate. Why are carbohydrates needed by living things? Tick the correct box. to provide energy to provide liquid to provide immunity to provide minerals maximum 6 marks 4. The diagram below shows six cells. (a) Give the letters of the two plant cells in the diagrams.... and... Moulsham High School 6

7 Which one of these plant cells contains chloroplasts? Give the letter.... (iii) Give the function of chloroplasts. (b) Give the letter of the ciliated cell.... In which part of the body are ciliated cells found? (iii) What is the function of ciliated cells in this part of the body? (c) Give the letter of the cell which transfers genetic information from father to offspring.... maximum 7 marks Moulsham High School 7

8 5. (a) The diagrams below show an animal cell and a plant cell. The lines from the boxes show the positions of two of the parts that are present in both cells. In the boxes, write the names of these two parts. Give the names of two parts which are present in plant cells but not in animal cells marks 2 marks Moulsham High School 8

9 (b) Organs can carry out their functions because of the special cells they have. Draw a straight line from the name of each type of cell to the function of the cell and then to the process it carries out. One has been done for you. cell function process white blood cell absorbs light to prevent disease leaf cell transports oxygen to digest food cell in the intestine traps micro-organisms for respiration red blood cell produces enzymes for photosynthesis 3 marks Maximum 7 marks 6. Diagram 1 below shows the lungs and the trachea, the airway leading to the lungs. One of the lungs is drawn in section. diagram 1 Moulsham High School 9

10 (a) In the wall of the trachea, there are pieces of a stiff material called cartilage. Why is this stiff material necessary in the wall of the trachea? (b) Diagram 2 below shows one alveolus and its blood supply. diagram 2 Look at diagram 2, above. Gas A enters the blood from the alveolus. Gas B leaves the blood and enters the alveolus. What are the names of gases A and B? gas A... gas B... Give one reason why it is easy for gases to pass across the wall of an alveolus. Moulsham High School 10

11 (c) The diagram below shows a ciliated cell from the lining of the airway. What is the function of this cell in the airway? This cell is affected by substances in cigarette smoke. What effect does cigarette smoke have on the cilia? (iii) Give the name of the substance, in cigarette smoke, which causes addiction to smoking. Maximum 6 marks Moulsham High School 11

Low Demand Questions QUESTIONSHEET 1 The diagrams show some organs in the human body.

Low Demand Questions QUESTIONSHEET 1 The diagrams show some organs in the human body. (a) Name the organs labelled A, B, C, D and E. A.... [1] B.... [1] C.... [1] D.... [1] E.... [1] (b) Which of the organs