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