- 1. Breathing root is an adaptation for survival in the...
A) Savanna B) Desert C) Arboreal D) Mangrove swamp
- 2. Which of the following has the most primitive respiratory system?
A) Mouse B) Insect C) Fish D) Snail
- 3. The group of arthropods with no antenna is the...
A) Arachnida B) Crustacean C) Diplopoda D) Chilopoda
- 4. The dominant phase in the life cycle of a fern is the...
A) Gametophyte B) Prothallus C) Antheridium D) Sporophyte
- 5. In terms of the number of individuals, which of the following taxa is most inclusive?
A) Class B) Species C) Order D) Family
- 6. The response of plants to external stimuli in a non directional manner is known as...
A) Tactic movement B) Phototropism C) Nastic movement D) Geotropism
- 7. The rods in the retina of the eye are examples of...
A) Organs B) Cells C) System D) Tissues
- 8. The blood vessel which carries digested food from the small intestine to the liver is the...
A) Renal vein B) Hepatic artery C) Renal artery D) Hepatic portal vein
- 9. Magnesium is utilised in the formation of...
A) Chlorophyll B) Amino acids C) ATP D) Glucose
- 10. The following are connected with the movement of a reflex action. (1) Central nervous system (2) Muscle (3) Skin (4) Sensory nerve (5) Motor nerve. Which of the following sequences indicates a correct path?
A) 1-2-3-4-5 B) 3-4-1-5-2 C) 3-4-1-2-5 D) 2-1-4-5-3
- 11. Which of the following is cold blooded?
A) Bird B) Cat C) Lizard D) Whale
- 12. Which of these instruments is used to demonstrate the response of roots and shoots to gravity?
A) Klinostat B) Potometer C) Porometer D) Manometer
- 13. One of the major causes of hemophilia is lack of...
A) Fibrinogen B) White blood corpuscles C) Red blood corpuscles D) Plasma
- 14. In man, spermatozoa are never found in the...
A) Epididymis B) Vas deferens C) Urethra D) Prostate gland
- 15. What type of fruit is formed from a single flower having several free carpels?
A) Aggregate fruit B) Simple fruit C) Dehiscent fruit D) Multiple fruit
- 16. The part of mammalian brain responsible for maintaining balances is the...
A) Medulla oblongata B) Cerebellum C) Cerebrum D) Olfactory lobe
- 17. In a biuret test, some protein was mixed with sodium hydroxide solution. Which of the following chemicals may be added to the mixture for a positive result?
A) Sodium carbonate B) Copper sulphate C) Hydrogen carbonate D) Ammonium hydroxide
- 18. The characters by which an organism is recognised are termed its...
A) Phenotype B) Morphology C) Anatomy D) Genotype
- 19. In lower plants like mosses, the structure which performs the function of roots of higher plants is called...
A) Thalli B) Hyphae C) Rootlets D) Rhizoids
- 20. In a community, bacteria and fungi are referred to as...
A) Scavengers B) Producers C) Consumers D) Decomposers
- 21. Which of these animals is radially symmetrical?
A) Cockroach B) Snail C) Squid D) Hydra
- 22. The swollen shoot disease of a cocoa tree is caused by a...
A) Protozoan B) Virus C) Fungus D) Bacterium
- 23. Secondary thickening is initiated in a dicotyledonous stem by the...
A) Cambium B) Endodermis C) Xylem parenchyma D) Secondary phloem
- 24. The function of ribosomes in cell is...
A) Transport of materials B) Lipid storage C) Protein synthesis D) Starch synthesis
- 25. An example of monohybrid inheritance is...
A) Cretinism B) Astigmatism C) Albinism D) Hyperthyroidism
- 26. The major function of the bladder in fishes is...
A) Bouyancy B) Excretion C) Breathing D) Swimming
- 27. Which of the following relationships involves only one organism?
A) Commenalism B) Parasitism C) Saprophytism D) Symbiosis
- 28. Coconut and oil palm fruits can be grouped as...
A) Capsule B) Berry C) Legume D) Drupe
- 29. The small masses of nervous tissue in which many neurons have their nuclei are called...
A) Synapse B) Ganglia C) Axon D) Ventral roots
- 30. Coelomb is absent the class of animals termed...
A) Arthropods B) Coelenterata C) Reptilia D) Mollusca
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