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Exercise Chapter 1 Form 5

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Exercise Chapter 1 Form 5

  1. 1. ACTIVITY 1 : MICROORGANISMEXERCISE 1 . UNDERLINE THE CORRECT ANSWER.1. Microorganisms are (living things / non-living things)2. “ Micro” means ( tiny / large)3. Organism means ( living things/ non-living things)4. Microorganism can be found only by (telescope/microscope)5 They exist in different shapes, sizes and colour. They can be found in air , soil, and water and in or on the plants and animals. They are ( protozoa / bacteria)6. They eat from live organisms. They are the smallest of all microorganisms. They are ( yeast/ viruses )7. They can be found in lake, ponds (kolam), rivers and lakes (tasik). They geat food from other microorganisms. They are ( Yeast/ Protozoa)8. They can be found on mouldy bread and rotten food. They are ( Protozoa/ Fungi)9. All microorganisms breathe. During breathing, (carbon dioxide /oxygen )is taken in and (carbon dioxide /oxygen) is given out.10. The similarity between bacteria and fungi is both are ( non-living things/ microorganisms)ACTIVITY 2. WRITE ‘TRUE’ OR ‘FALSE’ IN THE BOXES PROVIDED.1. Worms, bacteria and ants are three types of microorganisms .2. We can see microorganisms with the naked eye.3. Like humans, microorganisms breathe, grow and move4. A magnifying glass can be used to see some of the microorganisms.5. The name of bacterias are according to their shapes.6. The smallest among all microorganisms is protozoa.7. All microorganisms are harmful. 1
  2. 2. ACTIVITY 3TOPIC : MICROORGANISM UNDERGO LIFE PROCESSESEXERCISE 3 . Fill in the blanks with correct answers.Some answers maybe used twice. Microorganisms are a) ________________. They come in different (b)___________________ and (c) ________________. We cannot see microorganismthrough our naked eyes because microorganisms are too (d)_____________ insize. However, they can be seen by using a (f) _____________________. There are five groups of microorganisms, namely (g)__________________, (h)_____________________, (i)_____________________,(j) ___________________________ and (k)______________________. Like otherliving things, microorganisms can (l) __________________________, (m)______________________________ and (n) ______________________________ 2
  3. 3. ACTIVITY 4Name the type of microorganismsCCTS : classfyingDate : ___________________________A . B. C.C . D. E.F. G. HI. TYPES OF MICROORGANISMS : FUNGI, VIRUSES, BACTERIA, PROTOZOA, ALGAE__________________________ 3
  4. 4. TOPIC : MICROORGANISMS ARE HARMFUL AND USEFUL.MICROORGANISMS ARE USEFUL.DATE : ________________________1. Complete the following statements.2.Fill in the blanks with correct answers. Lactobacillus harmful yeast breathes oxygen carbon dioxide fungus humus Some microorganisms are useful and some are a)_______________to us. b)______________________ is an example ofmicroorganism that is widely used in the food industry. Yeast is a fungus. It is usedin the making of bread, cheese, tempeh and tapai .When yeast is added to a sugarsolution, it uses the sugar as a source of food. When it c) ___________________,it takes in d)__________________________ and releasese)_______________________________that can be seen in the mycelium of thefungus when it grows. Carbon dioxide makes the bread dough rise. 4
  5. 5. Some bacteria, for example f) ________________________ is widely usedin making yogurt drink. Antibiotics such as penicillin are extracted from penicillium,which is a g) ____________________ Bacteria and fungi in soil which act on grass and leaves or any other organicmaterials and convert them to h) ___________________________________ by aprocess known as biodegradation. ACTIVITY 3 : FILL IN THE TABLE WITH THE CORRECT ANSWERS. B. MICROORGANISMS CAN CAUSED FOOD POISONING THROUGH SPOILED FOOD Microorganisms can cause food to turn bad: Fill in the table with the corrects answers. TYPES OF FOOD SIGNS OF FOOD THAT HAVE TURNED BAD Milk Vegetables Fish Rice 5
  6. 6. EXERCISE 1TOPIC : MICROORGANISMS ARE HARMFUL AND USEFUL.MICROORGANISMS ARE USEFUL. DATE : ________________________ 1. State four harmful actions of bacteria. a) ____________________________________________________________ ___________________________________________________________ b)___________________________________________________________ ____________________________________________________________ c)___________________________________________________________ ___________________________________________________________ d) __________________________________________________________ __________________________________________________________ Exercise 2. Match correctly 6
  7. 7. Exercise 3State a way to prevent each disease from spreading Name of disease Way to prevent it from spreadinga)Coughb) chickenpoxb) upset stomach /diarrheac) flu2. Write “true” for the correct statements and ‘false’ for the wrong statements.a) All microorganism are harmful. They cause food too turn bad and make us ill.b) Cake, buns and milk are produced by using microorganisms.c) Microorganisms can be carried from place to place and spread from one person to anotherd) Patients who have AIDS should be quarantined to prevent the disease from spreading to another person.e) Flu can be spread by airf) We boil water before drinking to kill the living microorganisms in water 7

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