Characteristics Classification And Features Of Organisms

9.Growth in living organisms always involves an increase in cell number.

10.Name the process by which plants take in carbon dioxide and water to produce glucose.

11.Complete the sentence.

12.Match each organism group with its mode of nutrition.

13.Which characteristic of living organisms is described as 'the removal of toxic substances, waste products of metabolism, and substances in excess'?

14.Arrange the following events in the correct order for a plant responding to light: 1. growth towards light, 2. light detected by photoreceptors, 3. response in cells, 4. stimulus (light).

15.Which statement about growth in living organisms is correct?

16.Which of the following are characteristics of all living organisms? (Select all that apply)

17.Nutrition in animals involves taking in organic compounds, ions, and water.

18.A student observes that a plant grows towards a source of light. Which two characteristics of living organisms are being demonstrated?

19.Match each characteristic of living organisms with its correct description.

20.Arrange the following events in the correct order for a plant responding to light: 1. growth towards light, 2. light detected by photoreceptors, 3. response in growth direction, 4. signal transmitted to growth region.

21.A student observes a plant growing towards a window. Which two characteristics of living organisms are being demonstrated?

22.A sample of pond water is found to contain organisms that move, reproduce, and feed on bacteria. However, they do not show any growth in size over time. Which characteristic of life is most likely absent in these organisms?

23.Which of the following processes are examples of excretion? (Select all that apply)

24.All living organisms require oxygen for respiration.

25.Arrange the following events in the correct sequence for a plant responding to light: 1. Growth towards light, 2. Light detected by photoreceptors, 3. Response in cells causing unequal growth, 4. Signal transmitted to growth region.

26.Which of the following is an example of a response to an internal stimulus?

27.In an experiment, a student places a germinating seed in a sealed container with a sensor that measures carbon dioxide concentration. Over 24 hours, the carbon dioxide concentration increases. Which characteristic of life is being directly measured?

28.A student investigates the effect of temperature on the rate of respiration in yeast. Which piece of apparatus is most suitable for measuring the volume of gas produced?

29.In an experiment to investigate the effect of light intensity on the rate of photosynthesis, which of the following should be kept constant? (Select all that apply)

30.The dry mass of a plant increases when it is kept in the dark for several days.

31.Arrange the following events in the correct order for a plant responding to light: 1. growth towards light, 2. light detected by photoreceptors, 3. response in cells leading to unequal growth.

32.Which of the following is an example of excretion in a plant?

33.In an experiment to investigate the effect of temperature on enzyme activity, a student uses a colorimeter to measure the colour change. What is the advantage of using a colorimeter over visual comparison?

34.Which of the following is NOT a characteristic of all living organisms?

35.Arrange the following events in the correct order for a plant responding to light: A. Growth towards light, B. Light detected by photoreceptors, C. Response in the plant.

36.Arrange the following events in the correct order for a plant responding to light: 1. growth towards light, 2. light detected by photoreceptors, 3. response in the plant.

37.A student places a potted plant in a dark cupboard for 48 hours, then exposes it to light. After 24 hours, she tests a leaf for starch using iodine solution. The leaf turns blue-black. Which characteristic of living organisms is demonstrated by the production of starch?

38.A student investigates the effect of temperature on the rate of respiration in yeast by measuring the volume of carbon dioxide produced. Which of the following should be kept constant to ensure a fair test? (Select all that apply)

39.Excretion includes the removal of undigested food from the digestive system.

40.Place the following events in the correct order for a plant responding to light:

41.In an experiment, a student places a germinating seed in a sealed container with a carbon dioxide sensor. The CO₂ concentration increases from 0.04% to 0.15% over 24 hours. Which process is responsible for this increase?

42.A student records the dry mass of a plant seedling every week. The results are: week 1: 0.3 g, week 2: 0.5 g, week 3: 0.8 g, week 4: 1.2 g. What is the percentage increase in dry mass from week 1 to week 4?

43.A student investigates the effect of temperature on the rate of respiration in yeast by measuring the volume of carbon dioxide produced. Which of the following pieces of apparatus is most suitable for this measurement?

44.A student records the dry mass of a plant seedling every week. The dry mass at week 1 is 0.2 g and at week 4 is 0.5 g. Calculate the average increase in dry mass per week in grams.

45.A student observes a plant growing towards a window. Explain which two characteristics of living organisms are being demonstrated and justify your answer.

46.Complete the mnemonic used to remember the characteristics of living organisms.

47.A plant seedling has a dry mass of 0.2 g on day 1 and 0.6 g on day 10. Calculate the average increase in dry mass per day.

48.Complete the sentence about nutrition.

49.A student records the dry mass of a germinating seed on day 1 as 0.5 g and on day 5 as 0.8 g. What is the percentage increase in dry mass?

50.Complete the sentence about sensitivity.

51.Complete the definition of growth.

52.State two differences between the nutrition of plants and animals.

53.Explain why a plant growing towards sunlight demonstrates two characteristics of living organisms.

54.Explain how a plant growing towards sunlight demonstrates two characteristics of living organisms. Use the terms 'sensitivity' and 'growth' in your answer.

55.Explain why a plant growing towards sunlight demonstrates two characteristics of living organisms. Use the terms 'sensitivity' and 'growth' in your answer.

56.A student records the dry mass of a plant seedling every week. The dry mass at week 1 is 0.2 g and at week 4 is 0.5 g. Calculate the average increase in dry mass per week in grams.

57.A plant seedling has a dry mass of 0.2 g on day 1 and 0.6 g on day 10. Calculate the average increase in dry mass per day.

58.A student records the dry mass of a germinating seed on day 1 as 0.5 g and on day 5 as 0.8 g. What is the percentage increase in dry mass?