Cell organisation

9.Which of the following lists the levels of organisation in a plant from simplest to most complex?

10.In the digestive system, epithelial cells form epithelial tissue. Epithelial tissue, along with other tissues, forms the stomach. This is an example of:

11.Which organelle is abundant in palisade cells and is the site of photosynthesis?

12.The diagram shows a plant cell. Which labelled structure is the site of photosynthesis?

13.In the cell organisation hierarchy, which level comes immediately after 'tissues'?

14.Which of the following is a tissue found in the stomach?

15.A leaf is an example of which level of organisation?

16.Which statement about palisade cells is correct?

17.Which of the following is an organ system?

18.In a plant, the shoot system is an example of which level of organisation?

19.A student observes a sample of cells under a microscope. The cells are rectangular, have a cell wall, and contain many chloroplasts. Which type of cell are they most likely observing?

20.In the digestive system, which level of organisation does the stomach represent?

21.Which of the following correctly lists the levels of organisation in a plant from simplest to most complex?

22.A student observes a sample of cells under a microscope. The cells are rectangular, have a cell wall, and contain many chloroplasts. Which type of cell are they most likely to be?

23.Which of the following is the correct hierarchy of organisation in a multicellular organism from simplest to most complex?

24.A student is asked to prepare a slide of leaf tissue to observe palisade cells. Which of the following steps is essential for obtaining a clear view of chloroplasts?

25.In the cell organisation of the digestive system, which level does the stomach represent?

26.Which of the following statements about palisade cells is correct?

27.A student investigates the effect of light intensity on the rate of photosynthesis in pondweed. Which piece of apparatus is essential for measuring the rate of photosynthesis?

28.A student is asked to design an experiment to test the effect of temperature on the rate of digestion of starch by amylase. Which of the following would be the most appropriate way to measure the rate of reaction?

29.Which of the following is an example of an organ system in a plant?

30.Epithelial cells line the stomach. What is the main function of these cells?

31.A student wants to compare the number of stomata on the upper and lower surfaces of a leaf. Which method would give the most reliable results?

32.Which of the following correctly describes the relationship between cells, tissues, and organs?

33.A student sets up an experiment to investigate osmosis in potato cylinders. They place potato cylinders in different concentrations of sugar solution and measure the change in mass after 30 minutes. Which of the following is the independent variable?

34.A student is testing a food sample for the presence of starch. They add iodine solution and observe a blue-black colour. What does this indicate?

35.A student wants to investigate the effect of pH on the activity of an enzyme. Which of the following would be the most suitable method to measure the rate of reaction?

36.Which of the following is the correct order of cell organisation from simplest to most complex?

37.A scientist observes a sample of cells from a leaf. The cells are elongated, packed with chloroplasts, and located near the upper surface. Which type of cell are they most likely to be?

38.A student counts the number of chloroplasts in 10 palisade cells from a leaf and records: 38, 42, 45, 40, 39, 41, 43, 44, 42, 41. What is the mean number of chloroplasts per cell?

39.In an experiment, a student places a piece of potato (an organ) in a beaker of water. The potato is composed of several tissues. After one hour, the potato becomes firmer. Which process explains this change?

40.A student investigates the effect of temperature on the rate of photosynthesis in pondweed. They count the number of bubbles released per minute at 10°C, 20°C, and 30°C. Results: 10°C: 5 bubbles/min; 20°C: 12 bubbles/min; 30°C: 18 bubbles/min. Which conclusion is best supported by the data?

41.Multicellular organisms are made of many individual cells.

42.The stomach is a tissue.

43.A tissue is made from a group of similar cells working together.

44.Plant leaves are organs.

45.Epithelial cells are needed for photosynthesis.

46.Which level of organisation comes immediately after 'tissues' in the hierarchy?

47.Match each level of organisation to the correct example from a plant.

48.Arrange the following levels of organisation in the correct order from simplest to most complex.

49.Which of the following statements about cell organisation are correct? Select all that apply.

50.A scientist observes a sample of cells from an unfamiliar plant. The cells are rectangular, have a thick cell wall, and contain many chloroplasts. Which level of organisation do these cells represent?

51.Describe the difference between tissues and organs.

52.Describe an example of cell organisation in a plant. Include a description of how cells are organised into tissues, organs and organ systems.

53.Describe an example of cell organisation in an animal. Include a description of how cells are organised into tissues, organs and organ systems.

54.A student counts the number of chloroplasts in 10 palisade cells from a leaf and records: 38, 42, 45, 40, 39, 41, 43, 44, 42, 41. What is the mean number of chloroplasts per cell? Give your answer to one decimal place.

55.A student counts the number of chloroplasts in 10 palisade cells from a leaf and records: 38, 42, 45, 40, 39, 41, 43, 44, 42, 41. What is the mean number of chloroplasts per cell? Give your answer to one decimal place.