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