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ANIMAL SURVIVAL

ANIMAL SURVIVAL. (a) The Need For Food. ANIMAL SURVIVAL. (a) The Need For Food. ANIMAL SURVIVAL. (a) The Need For Food. 1. What are the 3 main food groups?. Carbohydrate Fat Protein. 2. Name the simplest form of each food group. Carbohydrate - ? Fat - ?

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ANIMAL SURVIVAL

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  1. ANIMAL SURVIVAL (a) The Need For Food

  2. ANIMAL SURVIVAL (a) The Need For Food

  3. ANIMAL SURVIVAL (a) The Need For Food

  4. 1. What are the 3 main food groups? • Carbohydrate • Fat • Protein

  5. 2. Name the simplest form of each food group. • Carbohydrate - ? • Fat - ? • Protein - ? glucose Fatty acids + glycerol amino acids

  6. Which elements do each food group contain? 3. Carbohydrate - ? Fat - ? Protein - ? Carbon, hydrogen, oxygen. Carbon, hydrogen, oxygen. Carbon, hydrogen, oxygen, nitrogen.

  7. 4. Digestion is the process of breaking down ……… ……… particles into ……… ……… particles, so that they can be ………… through the gut wall into the ……… small large insoluble soluble absorbed blood

  8. 5. Name the reagent used to test for: • starch - ? • glucose - ? iodine benedicts reagent

  9. 6. What is the test for: Add iodine to the substance being tested. If a blue-black colour appears, starch is present. • starch - ? • glucose - ? Add benedicts reagent to the liquid being tested and boil for 3 minutes. If a brick red colour appears, glucose is present.

  10. 7. Complete the table below to show what a carnivore and a herbivore use their different teeth for when eating. chop grass stab + hold prey crush bones chew grass

  11. 8. Name the process by which food is moved along the gut. Peristalsis

  12. 9. Arrange the following parts of the alimentary canal in the correct order beginning with the mouth. Anus, Gullet, Large intestine, Mouth, Rectum, Small intestine, Stomach.

  13. 9. Arrange the following parts of the alimentary canal in the correct order beginning with the mouth. Mouth Gullet Stomach Small Intestine Anus Rectum Large intestine

  14. 10. What is peristalsis? An involuntary wave of contraction preceded by a wave of relaxation in the muscles of the gut wall.

  15. 11. How is the small intestine is adapted for efficient absorption of digested food. • It is long • Its inner surface is folded • Its walls are very thin

  16. 12. Name the finger-like projections in the wall of the small intestine. Villi

  17. 14. Which enzymes break down the following foods?. • Starch - • Protein - • Fat - amylase pepsin lipase

  18. 15. Which part of the villus absorbs the food groups shown below? capillary lacteal capillary

  19. 16. Which blood vessel carries blood rich in food products away from the gut? Hepatic Portal Vein

  20. 17. Where does the Hepatic Portal Vein carry the blood to? The liver

  21. 18. What happens to the undigested waste in the large intestine before it moves on to the rectum? Water is removed from it

  22. 19. Complete the following table showing the digestive action of these enzymes. maltose amylase protein peptide lipase fat

  23. 20. Decide if the following statements are true or false…. • Human teeth are specialised to cope with a varied diet • Sheep have no canines in the upper jaw • Sheep’s molars have rounded surfaces for grinding grass • Dogs have a rough pad on the upper jaw to remove flesh from bones • A dog’s canines are long and pointed for piercing and gripping false true false false true

  24. This is the end of the Animal Survival revision questions on ‘The Need for Food’ If you did not get then all correct, revise your notes then try again!

  25. This is the end of the Animal Survival revision questions on ‘The Need for Food’ These revision questions will automatically run again. If you want to return to the list of revision topics click on the back browser.

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