Quiz 2
1. Photosynthesis 2. Parasitic nutrition 3. Cell division 4. Balanced diet 5. Circulatory system
Photosynthesis You have to answer 15 questions. If your answer is correct, you will have one mark. If your answer is incorrect, you will lose one mark.
You have to answer 15 questions. If your answer is correct, you will have one mark. If your answer is incorrect, you will lose one mark.
Note! You can only choose one answer! Do not click the second button after you have clicked the first one, or you will get inaccurate marks.
Wish you good luck!!!!!
Question1 For photosynthesis to occur, carbon dioxide and water are the raw materials for the process. Oxygen and glucose are the products. True False Question 2 Light can split water into hydrogen and oxygen during light reactions. True False Question 3 Light reactions in photosynthesis occurs when there is light; dark reactions occur in the dark. True False Question 4 Chlorophyll is a chemical compound. Chloroplast is a structure made of chemical substances. True False Question 5 Some algae are brown in color. Some are red, some are blue. They do not contain chlorophyll but contain pigments of other colours to carry out photosynthesis. True False Question 6 Palisade mesophyll has more chloroplasts than spongy mesophyll because it is in the upper layer of the leaf. This helps the leaf absorb more light. True False Question 7 In dark reactions, hydrogen atoms react with carbon dioxide to form glucose. True False Question 8 Autotrophic nutrition is that the green plants manufacture organic food by converting inorganic substances using light energy. The process is called photosynthesis. True False Question 9 For all light intensities, when light intensity increases, photosynthetic rate increases. True False Question 10 When light falls on guard cells, it will change change and form a hole between the two cells. Stomata open. True False Question 11 The leaf is thin because it helps the leaf to increase surface area for light absorption. True False Question 12 When a leaf is detached and put into a beaker of warm water, there is gas evolved under bright sunlight. The gas is oxygen. True False Question 13 Epidermis of the leaf is a tissue which can reduce water loss from the leaf. True False Question 14 If sun provides green color of light only, all green flowering plants in our world die. True False Question 15 At compensation point, absolute rate of photosynthesis and respiratory rate must be the same. True False Click here to play again
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Parasitic nutrition You have to answer 15 questions. If your answer is correct, you will have one mark. If your answer is incorrect, you will lose one mark.
Question 1 All parasites have no digestive system. True False Question 2 The meaning of a parasite is : organism living in the body of another organism. True False Question 3 Tapeworm is a kind of endoparasite. It can be found inside the human body. True False Question 4 The suckers of the tapeworm is to absorb nutrients. True False Question 5 Tapeworm produces eggs which pass out from human body together with the faeces. True False Question 6 Parasitism must involve two organisms, the parasite and the host. True False Question 7 The most successful parasites are organisms which can kill their hosts. True False Question 8 Mosquitoes are also parasites. True False Question 9 The body wall of the tapeworm is only one cell thick. The thin layer can absorb nutrient well. True False Question 10 Tapeworm is bisexual. Both male and female reproductive structures can be found in the body. True False Question 11 For the species we learnt in Form Four Biology, the eggs of tapeworm enter the body of the cow and develop into an immature tapeworm. When we eat the raw beef, the man will be infected. True False Question 12 Parasitic nutrition is a kind of heterotrophic nutrition because by means of which, the organisms can get food from outside. True False Question 13 The number of segments of the body of a tapeworm is not fixed. True False Question 14 Tapeworm can carry out anaerobic respiration. True False Question 15 To avoid infection by a tapeworm, one method is to cook the pork more completely. True False Click here to play again
Cell division You have to answer 15 questions. If your answer is correct, you will have one mark. If your answer is incorrect, you will lose one mark.
Question 1 Mitosis is a division of the cell into two daughter cells. True False Question 2 For unicellular organisms, mitosis helps the reproduction of the organisms to produce offspring. True False Question 3 There are 23 pairs of chromosomes in all human cells. True False Question 4 Chromosomes cannot be seen in a non-dividing cell under a microscope. They become visible just before the cell is going to divide. True False Question 5 The 23rd pair of human chromosomes in a muscle cell are sex chromosomes. True False Question 6 Nerve cells and mature red blood cells cannot carry out mitosis. True False Question 7 Normally, in two mitotic cell divisions, 4 daughter cells are formed and in one meiotic cell division, 4 daughter cells are formed. True False Question 8 Mitosis consists of many stages. In each stage, different events take place. True False Question 9 In human body, only the testes and ovaries can carry out meiosis. True False Question 10 By mitosis, the 2 daughter nuclei produced are identical. They consist of same number of chromosomes and same types of chromosomes. True False Question 11 In cytoplasmic division, the membrane in the middle part of the parent cell pinches inwards to give two new cells. True False Question 12 We can observe mitosis in all growing root tips of flowering plants. True False Question 13 Some of the significance of mitotic cell division are for growth, repair and replacement of worn-out cells. True False Question 14 In mitosis, each chromosome line up at the middle of the cell. There is no process called independent assortment or random segregation. True False Question 15 During mitosis, the duplicated chromosomes consisting of two chromosomes which can separate into two and move to opposite ends of the cell. True False Click here to play again
Balanced diet You have to answer 15 questions. If your answer is correct, you will have one mark. If your answer is incorrect, you will lose one mark.
Question 1 A balanced diet should consider the balance of energy uptake and requirement and the balance of food type in right proportions. True False Question 2 In a balanced diet, carbohydrates, proteins and fats should be taken in correct proportions. True False Question 3 In our daily diets, the amount of carbohydrates taken should be more than that of proteins. True False Question 4 In general, a boy of age 18 requires more energy than a girl of the same age. True False Question 5 Body weight also determines the amount of energy uptake and requirement. True False Question 6 Fats contains nearly 2 times as much as energy than carbohydrates. So, they are the main energy suppliers in our daily lives. True False Question 7 When the daily energy intake is greater than the daily energy requirement, after a long time, he will be overweight. True False Question 8 Deficiency disease of vitamin C is called scurvy. True False Question 9 Deficiency disease of calcium is ricket. True False Question 10 Iron is needed for formation of haemoglobin. True False Question 11 When we cannot see things clearly in the darkness, we may suffer from night-blindness. True False Question 12 Normally, a 20 years old girl requires more iron than a 6 years old girl. True False Question 13 Lactating women requires more calcium because they need more calcium for growth. True False Question 14 A fast food diet usually contains not enough vitamin and roughage. True False Question 15 Cheese contains proteins and fats and minerals. True False Click here to play again
Circulatory system
Question 1 The transport system in mammal only consists of circulatory system. True False Question 2 Plasma is blood without blood cells. True False Question 3 Red blood cells have no nucleus. True False Question 4 Red blood cells are flattened in shape to increase surface area for oxygen uptake. True False Question 5 Among the three types of blood cells, only blood platelets can help blood clotting. True False Question 6 Some white blood cells can carry out cell-eating process and intra-cellular digestion to kill bacteria whereas some white blood cells can secrete antibody. True False Question 7 Blood flows in artery because the muscle wall of artery can contract and relax to push blood forward. True False Question 8 By definition, all arteries carry blood away from heart and all veins carry blood towards heart. True False Question 9 Blood flows in arteries in pulse because the muscle of the wall maintain the blood pressure. True False Question 10 When ventricles contract, heart strings can contract to prevent the cuspid valves from turning inside out. True False Question 11 Blood flows from right auricles, passes through the bicuspid valves and enters the right ventricles. True False Question 12 All arteries contains oxygenated blood whereas all veins contains deoxygenated blood. True False Question 13 The septum of the heart can indirectly increase the rate of oxygen uptake from the air sac into the blood. True False Question 14 The heart sounds are producd when auricles and ventricles contract. True False Question 15 Pacemaker is a special kind of heart muscle which can start and modify heart beat rate. True False Click here to play again
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