Author: Anonymous

2.1 The green pigment that absorbs light energy is chlorophyll. (1)

6.2 Suggest why the batteries for the heart pump are placed outside the body. (1)

1.5 Which valve prevents blood flowing back into the left atrium from the left ventricle? (1) A) The semi-lunar valve   B) The bicuspid valve   C) The tricuspid valve   D) All of the above  

1.4 What is the movement of sugars through a plant called? (1) A) Translation   B) Transcription   C) Translocation   D) Active Transport  

8. Study the diagram below and answer the questions.   Right-click on the button below to open the image in a new tab:

3. The table contains names and descriptions of processes involved in the digestive system. Match the name of process with the description of process.   (5)   DESCRIPTION OF PROCESS NAME OF PROCESS 3.1. Food enters the mouth A.  Absorption 3.2. Step – wise breakdown of large food particles into molecules. B.  Assimilation 3.3. Small food molecules move from the small intestine into the blood. C.  Ingestion 3.4. Small food molecules are used to build large molecules. D.  Egestion 3.5. Removal of undigested food from anus. E.  Digestion

7. A group of Grade 10 learners set up the apparatus shown below to investigate the effect of temperature on the rate of transpiration. This investigation was done three times. Study the diagram below and answer the questions that follow.   Right-click on the button below to open the image in a new tab:

1.3 How are the xylem and phloem arranged in plant roots? (1) A) In the centre of the root   B) In bundles near the edge of the root   C) Evenly spaced out across the root   D) In the centre of the leaf  

12. A group of students investigate the effect of exercise on breathing rate. They measure their breathing rate at rest by counting breaths per minute. They then exercise by running on the spot. After exercise they measure their breathing rate by counting breaths per minute. These are their results. At rest 14, 13 and 14 After exercise 27, 25 and 26.  

7.5 What is the purpose of the of the water in the reservoir? (1)