- 1. Breathing root is an adaptation for survival in the...
A) Desert
B) Arboreal
C) Mangrove swamp
D) Savanna
- 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) Crustacean
B) Diplopoda
C) Chilopoda
D) Arachnida
- 4. The dominant phase in the life cycle of a fern is the...
A) Antheridium
B) Gametophyte
C) Sporophyte
D) Prothallus
- 5. In terms of the number of individuals, which of the following taxa is most inclusive?
A) Species
B) Order
C) Family
D) Class
- 6. The response of plants to external stimuli in a non directional manner is known as...
A) Tactic movement
B) Geotropism
C) Phototropism
D) Nastic movement
- 7. The rods in the retina of the eye are examples of...
A) System
B) Cells
C) Tissues
D) Organs
- 8. The blood vessel which carries digested food from the small intestine to the liver is the...
A) Renal vein
B) Hepatic artery
C) Hepatic portal vein
D) Renal artery
- 9. Magnesium is utilised in the formation of...
A) Chlorophyll
B) ATP
C) Amino acids
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) 2-1-4-5-3
C) 3-4-1-2-5
D) 1-2-3-4-5
- 11. Which of the following is cold blooded?
A) Cat
B) Whale
C) Bird
D) Lizard
- 12. Which of these instruments is used to demonstrate the response of roots and shoots to gravity?
A) Porometer
B) Manometer
C) Potometer
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) Vas deferens
C) Prostate gland
D) Urethra
- 15. What type of fruit is formed from a single flower having several free carpels?
A) Dehiscent fruit
B) Simple fruit
C) Multiple fruit
D) Aggregate fruit
- 16. The part of mammalian brain responsible for maintaining balances is the...
A) Cerebrum
B) Olfactory lobe
C) Cerebellum
D) Medulla oblongata
- 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) Ammonium hydroxide
B) Sodium carbonate
C) Hydrogen carbonate
D) Copper sulphate
- 18. The characters by which an organism is recognised are termed its...
A) Phenotype
B) Genotype
C) Anatomy
D) Morphology
- 19. In lower plants like mosses, the structure which performs the function of roots of higher plants is called...
A) Hyphae
B) Thalli
C) Rootlets
D) Rhizoids
- 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) Snail
B) Squid
C) Hydra
D) Cockroach
- 22. The swollen shoot disease of a cocoa tree is caused by a...
A) Virus
B) Bacterium
C) Fungus
D) Protozoan
- 23. Secondary thickening is initiated in a dicotyledonous stem by the...
A) Xylem parenchyma
B) Secondary phloem
C) Endodermis
D) Cambium
- 24. The function of ribosomes in cell is...
A) Transport of materials
B) Starch synthesis
C) Protein synthesis
D) Lipid storage
- 25. An example of monohybrid inheritance is...
A) Cretinism
B) Albinism
C) Astigmatism
D) Hyperthyroidism
- 26. The major function of the bladder in fishes is...
A) Bouyancy
B) Breathing
C) Swimming
D) Excretion
- 27. Which of the following relationships involves only one organism?
A) Commenalism
B) Saprophytism
C) Symbiosis
D) Parasitism
- 28. Coconut and oil palm fruits can be grouped as...
A) Legume
B) Capsule
C) Drupe
D) Berry
- 29. The small masses of nervous tissue in which many neurons have their nuclei are called...
A) Axon
B) Synapse
C) Ventral roots
D) Ganglia
- 30. Coelomb is absent the class of animals termed...
A) Reptilia
B) Coelenterata
C) Arthropods
D) Mollusca
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