1. Who observed the ‘living organisms’ under microscope first?
A. Antonie van Leeuwenhoek
B. Robert Hooke
C. Theodore Schwann
D. Mattias Schleiden
2. Complex multicellular organisms appeared and the land was occupied by
plants and animals during this period.
A. Proterozoic era
B. Paleozoic era
C. Mesozoic era
D. Cenozoic era
3. Prokaryotic cells include _______ and ________.
A. archaea, bacteria
B. bacteria, fungi
C. bacteria, plants
D. archaea, animals
4. Which of the following statements is not true of viruses?
A. Viruses have been successfully grown in pure cultures in test tubes
B. All viruses are obligatory intracellular parasites
C. All viruses have either DNA or RNA as their genetic material
D. Viruses probably arose from small fragments of cellular chromosomes
5. Identify the cell pictured.
A. A plant cell
B. An animal cell
C. A bacterial cell
D. A red blood cell
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6. A parasitic Trypanosoma is an example of which type of protist?
A. Animal-like protist
B. Plant-like protist
C. Fungi-like protist
D. Bacteria-like protist
7. Deuteromycetes are called imperfect fungi because
A. the sexual cycle has not been observed
B. nothing about them indicates their relation to other fungi
C. they do not produce mycelia
D. they are all parasites
8. All yeasts are single-celled organisms derived from the phylum
A. Zygomycota
B. Basidiomycota
C. Chytridiomycota
D. Ascomycota
9. Ectomycorrhizae are mostly found in
A. grasses
B. herbaceous plants
C. woody plants
D. all types of plants
10. Which one of the following is a non-vascular land plant?
A. Fern
B. Horsetail
C. Liverwort
D. Flowering plant
11. Which of the following organelles is common to plant and animal cells?
A. Central vacuole
B. Chloroplast
C. Mitochondria
D. Nucleolus
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12. Which part of the flower is used for protection of the flower before it opens?
A. Petals
B. Stamens
C. Pistil
D. Sepals
13. Sago is mostly carbohydrate and has very little protein, vitamins or minerals
and is obtained from
A. gymnosperms
B. angiosperms
C. algae
D. cyanobacteria
14. Which of the following terms describe all animals?
A. Unicellular and heterotrophic
B. Multicellular, macroscopic, autotrophic and heterotrophic
C. Eukaryotic, macroscopic, multicellular and heterotrophic
D. All of the above
15. An example of phylum Porifera is
A. sponge
B. jellyfish
C. spider
D. wasp
16. Phylum Platyhelminthes are
A. flatworms, tapeworms, flukes
B. starfish, sea urchins
C. sponges, corals
D. fish, animals, humans
17. Some characteristics that distinguish arthropods are
A. jointed appendages, an exoskeleton
B. a hard shell
C. endoskeleton and poisonous
D. parasitic animals
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18. An animal’s body cavity filled with liquid is called a
A. coelom
B. pseudocoelom
C. acoelom
D. all of the above
19. The overall equation for the aerobic cellular respiration of glucose is
A. CO2 + H2O → C6H12O6 + O2 + ATP
B. C6H12O6 + O2 → CO2 + H2O + ATP
C. C6H12O6 → Lactic acid + ATP
D. C6H12O6 → CO2 + Ethyl alcohol + ATP
20. Where is chlorophyll found in a plant cell?
A. Cytoplasm
B. Thylakoid membranes
C. Stroma
D. Matrix
21. Why are most plants green?
A. Chlorophyll a reflects green light
B. Chlorophyll b primarily uses green light as the source of energy for
photosynthesis
C. Green helps a plant blend into their environment as a sort of camouflage
D. Chlorophyll a absorbs green light
22. What are the products of photosynthesis?
A. Sugar + glucose
B. Carbon dioxide
C. Sugar + oxygen
D. Water + energy
23. Which of the following are important biotic factors that can affect the
structure and organization of biological communities?
A. Nutrient availability, soil pH, light intensity
B. Precipitation, wind, temperature
C. Predation, competition, disease
D. All of the above
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24. Factors that strongly affect the distribution of rainforests around the world are
A. temperature and rainfall
B. latitude and longitude
C. day and night hours
D. human population and its activities
25. An intensive dry season causes the goat population to decrease. This is an
example of water as a
A. carrying capacity
B. limiting factor
C. biotic factor
D. pattern in space
26. Crop rotation often benefits the agricultural industry by
A. ensuring more diversity of crops in the field and at the market
B. helping in breaking pest cycles
C. improving soil quality by adding nutrients
D. All of the above
27. Which of the following practice is not a feature of organic farming?
A. Encouraging soil microbial activities
B. Using commercial N.P.K fertilizer
C. Fertilizing crops with crop residues and livestock manures
D. Incorporating nitrogen fixing crops within crop rotations
28. Modern agriculture is very energy intensive because of
A. high human labour requirements
B. heavy use of fertilizers and pesticides
C. heavy use of machinery and fossil fuels
D. heavy use of hand tools
29. What are the indicator microorganisms in the contaminated water?
A. Coliforms and faecal coliforms
B. Cyanobacteria
C. Group of algae
D. Pathogenic microorganisms
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30. A chemical substance found in the environment, which is not naturally
produced is
A. xenobiotics (Pesticides, Herbicides, Plastics)
B. heavy metals
C. crude oil
D. refined oil

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1 A Antonie van Leeuwenhoek 2 B Paleozoic era 3 A archaea bacteria 4 A Viruses h... View the full answer