WorksheetsUlangkaji Sem 3SVM 2025
Total questions: 20
Worksheet time: 10mins
Figure 1 shows microorganisms P and Q. Choose the correct classification for microorganisms P and Q.
Alga Fungus
Virus Bacteria
Virus Protozoa
Bacteria Alga
The following are the uses of the bacterium serum Lactobacillus sp. except
Producing enzymes
Producing vaccines
Advancing the fishing industry
Aiding the digestion of livestock
Which of the following is a microorganism used to make bread?
Yeast
Mucor
Spirogira
Penicillium
What is the role of microorganisms in helping to improve soil fertility?
Binding nitrogen in the soil
Binding hydrogen in the soil
Increasing oxygen content in the soil
Increasing carbon dioxide content in the soil
Which of the following is a method used to sterilize petri dishes after use?
Autoclave
Boiling
Use of antiseptics
Use of disinfectants
Malnutrition occurs due to a deficiency of certain food classes in a person's diet. The following are the correct matches except
Rickets Vitamin D deficiency
Goiter Iodine deficiency
Scurvy Vitamin C deficiency
Kwashiorkor Mineral deficiency
Figure 2 shows an individual experiencing psychological problems due to reluctance to eat because of excessive worry about weight gain. Name the disease.
Atherosclerosis
Diabetes mellitus
Anorexia nervosa
High blood pressure
Nutrients required by plants are classified into two groups, namely macronutrients and micronutrients. Which of the following is the correct example?
Boron Oxygen
Potassium Oxygen
Potassium Zinc
Manganese Iron
Which of the following is a biological control method to control the rat population in rice fields?
Installing nets
Using chemical poisons
Installing scarecrows
Using owls
The following statement is a procedure for a food processing method. • Heating liquid at 63 °C for 30 minutes • Immediate cooling. Name the method.
Canning
Pasteurization
Dehydration
Freezing
Which of the following is a cause of air pollution?
Detergents
Deforestation
Open burning
Domestic sewage
Which of the following is the best method to manage plastic bottle waste?
Burying in the ground
Open burning
Sorting and recycling
Throwing in the trash can
Which statement is true about Biochemical Oxygen Demand (BOD)?
The amount of dissolved oxygen required by microorganisms to decompose organic matter in water
The amount of dissolved oxygen required by microorganisms to decompose inorganic matter in water
The lower the BOD of a water sample, the more microorganisms are present in that water sample
The higher the BOD of a water sample, the fewer microorganisms are present in that water sample
Why are marine microalgae suitable for use in Negative Emission Technology?
Maintaining oxygen gas content in the atmosphere through photosynthesis
Maintaining carbon dioxide gas content in the atmosphere through photosynthesis
Reducing oxygen gas content in the atmosphere through photosynthesis
Reducing carbon dioxide gas content in the atmosphere through photosynthesis
Which of the following is an international conference organized by the United Nations (UN) to address environmental issues at the global level?
Rio Conference
Malaya Conference
ASEAN-UNICEF Conference
World Conference on Social Development
Figure 3 shows a beam of light passing through a lens. State the characteristic of the lens.
Focusing light rays
Scattering light rays
Bending light rays
Reflecting light rays
Figure 4 shows a beam of light passing through a convex lens. What is the effect on the focal length if a thinner convex lens is used?
The focal length will not change
The focal length cannot be measured
The focal length will become shorter
The focal length will become longer
Figure 5 shows an optical device. State the characteristics of the final image that can be observed using this device.
Real and inverted
Real and inverted side
Virtual and inverted
Virtual and inverted side
Figure 6 shows the formation of an image by the eye of a person with vision problems. State the lens that is suitable to solve this problem.
Prism lens
Concave lens
Convex lens
Magnifying lens
Which of the following is the optical equipment suitable for viewing objects hidden behind a wall?
Periscope
Telescope
Microscope
Magnifying lens
