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AIC SS 2 Biology Revision Test for 3rd Term 2022/23
Contributed by: College
  • 1. The major zones of the marine habitat include all except.........
A) Benthic zone
B) Supratidal zone
C) Littoral zone
D) Neptunic zone
  • 2. The excessive growth of plant life or algae in water courses or bodies caused by an increase in organic nutrients or minerals leading to the death of aquatic organisms is called ...........
A) Eutrophication
B) Eutriphication
C) Etrophication
D) Eutropication
  • 3. The following are the processes involved in the formation of urine except.......
A) Ultra filteration
B) Glomerulus in the bowman's capsule
C) Hormonal secretion
D) Selective reabsorption
  • 4. Selective reabsorption occurs in one of the following.
A) Distal tubule
B) Henle's loop
C) Urethra
D) Bowman's capsule
  • 5. Effects of food shortage on the size of a population include the following except.......
A) Decline in the rate of reproduction
B) Competition
C) Increased supply of a particular type of food
D) Emigration
  • 6. Abiotic factors affecting a population include the following except......
A) Water
B) Heat
C) Space
D) Parasites
  • 7. The following are biotic factors affecting a population except......
A) Competition
B) Mortality
C) Light
D) Food
  • 8. A factor which limits the population growth is called .......
A) Dispersal
B) Balance in nature
C) Environmental resistance
D) Limiting factor
  • 9. One of the following is not an importance of family planning to a nation.
A) Promotion of maternal and mother's health
B) Prevention of population explosion
C) Prevention of indiscriminate abortion
D) Increased risk of STDs
  • 10. The organelle used for osmoregulation in unicellular organisms such as amoeba and paramecium is called ..........
A) Ribosome
B) Cytoplasm
C) Contractile vacuole
D) Endoplasmic reticulum
  • 11. The maintenance of a fairly constant internal environment in an organism is known as .........
A) Osmotic pressure balance
B) Neutralisation
C) Homeostasis
D) Concentration gradient
  • 12. One of the following secrets synovial fluid which acts as a shock absorber.
A) Synovial fluid
B) Synovial cavity
C) Synovial membrane
D) Cartilage
  • 13. ------------- joint allows movement in almost all directions
A) Gliding
B) Ball and socket
C) Pivot
D) Hinge
  • 14. Muscles are attached to bones by means of strong whitish cord called ----------
A) Ligament
B) Tonsil
C) Tendons
D) Cartilage
  • 15. One of the following is not a sucking mouth part of animals exhibiting a sucking mechanism
A) Scolex
B) Stylet
C) Probosics
D) Labella
  • 16. One of the following antibodies cause microorganisms to stick together in the body and reduce their pathogenic actions.
A) Agglutinins
B) Precipitins
C) Lysin
D) Antitoxins
  • 17. The following are the characteristics of leucocytes except -------
A) Colourless
B) Nucleated
C) Amoeboid in shape
D) Concave and circular
  • 18. One of the following is not peculiar to the red blood cell
A) Colourless when seen singly
B) Microscopic
C) Circular and concave
D) Old ones are destroyed in the liver
  • 19. The following are parts of the chewing and biting mouth parts except ---------
A) Mandibles
B) Probosics
C) Labrum
D) Maxillae
E) Labium
  • 20. Pulmonary artery is the blood vessel connected to -------------.
A) Left ventricle
B) Left auricle
C) Right auricle
D) Right ventricle
  • 21. What is the main function of the kidney?
A) Production of hormones
B) Filtration of blood
C) Digestion of food
D) Regulation of body temperature
  • 22. Which of the following is a disease of the kidney?
A) Influenza
B) Asthma
C) Diabetes
D) Arthritis
  • 23. What are the effects of kidney diseases on the body?
A) Enhanced vision
B) Improved digestion
C) Increased blood pressure
D) Strengthened immune system
  • 24. Which of the following is a remedy for the effects of kidney diseases?
A) Antibiotics
B) Physical exercise
C) Chemotherapy
D) Dialysis
  • 25. What are the functions of the liver?
A) Regulation of body temperature
B) Protection of the lungs
C) Detoxification of harmful substances
D) Production of red blood cells
  • 26. Which of the following is a disease of the liver?
A) Osteoporosis
B) Cirrhosis
C) Malaria
D) Pneumonia
  • 27. What are the effects of liver diseases on the body?
A) Accelerated wound healing
B) Improved memory
C) Impaired digestion
D) Increased muscle strength
  • 28. Which of the following is a remedy for the effects of liver diseases?
A) Liver transplantation
B) Physical therapy
C) Vitamin supplements
D) Meditation
  • 29. What is the structure and function of the mammalian skin?
A) Protection and temperature regulation
B) Muscle contraction and relaxation
C) Vision and hearing
D) Digestion and absorption
  • 30. Where are the hormonal glands located?
A) Lungs
B) Endocrine system
C) Stomach
D) Pancreas
  • 31. What is the function of hormones?
A) Production of energy
B) Transmission of nerve impulses
C) Strengthening of bones
D) Regulation of body functions
  • 32. What is the effect of over-secretion of hormones?
A) Weakened immune system
B) Weight loss
C) Increased blood pressure
D) Decreased heart rate
  • 33. What is the effect of under-secretion (deficiency) of hormones?
A) Accelerated wound healing
B) Improved cognitive function
C) Reduced growth rate
D) Enhanced muscle strength
  • 34. Where are plant hormones primarily located?
A) Stem
B) Roots
C) Flowers
D) Leaves
  • 35. What are the functions of plant hormones?
A) Reproduction of plants
B) Photosynthesis
C) Formation of seeds
D) Regulation of plant growth and development
  • 36. What is a modern application of auxin in crop harvesting?
A) Pest control
B) Disease prevention
C) Weed control
D) Soil fertilization
  • 37. Which components make up the central nervous system?
A) Heart and lungs
B) Brain and spinal cord
C) Liver and kidneys
D) Stomach and intestines
  • 38. What is the structure and function of the spinal cord?
A) Production of hormones
B) Oxygen exchange in the lungs
C) Digestion and absorption of nutrients
D) Communication between the brain and body
  • 39. Which of the following is a component of the brain?
A) Red blood cells
B) Neurons
C) Nephrons
D) Alveoli
  • 40. What are the functions of the central nervous system?
A) Regulation of hormone production
B) Digestion of food
C) Maintenance of body temperature
D) Control of voluntary and involuntary body movements
  • 41. What are the differences between hormonal and neuronal coordination?
A) Hormonal coordination is slower but more precise than neuronal coordination.
B) Hormonal coordination occurs only in plants, while neuronal coordination occurs only in animals.
C) Neuronal coordination relies on electrical impulses, while hormonal coordination relies on chemical signals.
D) Neuronal coordination involves the release of hormones.
  • 42. What is the somatic nervous system responsible for?
A) Maintaining body temperature
B) Controlling involuntary body functions
C) Regulating hormone production
D) Coordinating voluntary movements
  • 43. What is the autonomic nervous system primarily involved in?
A) Controlling skeletal muscles
B) Regulating internal body functions
C) Conscious decision-making
D) Processing sensory information
  • 44. What is the structure and function of neurons?
A) Neurons control voluntary muscle movements.
B) Neurons produce hormones that regulate body functions.
C) Neurons are found only in the brain and spinal cord.
D) Neurons are specialized cells that transmit electrical impulses.
  • 45. How are neurons classified?
A) Based on their size
B) Based on their ability to produce hormones
C) Based on the direction of nerve impulse transmission
D) Based on their location in the body
  • 46. How are nervous impulses transmitted between neurons?
A) Through the bloodstream
B) Through hormonal secretions
C) Through the digestive system
D) Through electrical signals
  • 47. What is the pathway and action of a nerve impulse known as?
A) Synaptic transmission
B) Neuronal feedback
C) Nervous system loop
D) Reflex arc
  • 48. How is a conditional reflex characterized?
A) A voluntary action performed without conscious thought
B) An involuntary response to a specific stimulus that has been learned
C) A reflex that occurs only in the presence of hormones
D) An automatic response to pain or danger
  • 49. What is the role of conditional reflexes in behavior?
A) Regulating hormone production
B) Controlling involuntary body functions
C) Coordinating voluntary muscle movements
D) Shaping and modifying learned behaviors
  • 50. Which of the following is an example of a conditional reflex?
A) Regulating body temperature through shivering
B) Blinking in response to a bright light
C) Withdrawing a hand from a hot surface
D) Salivating at the smell of food
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