Biology Past Questions And Answers
Which of the following is not a product of fermentation of glucose?
- A. Energy
- B. Alcohol
- C. Lactic acid
- D. Carbon dioxide
A plant-like feature in Euglena is the
- A. pellicle
- B. pigment spot
- C. large spot
- D. gullet
In the adult toad, gaseous exchange takes place through
- A) buccal cavity, skin and spiracle
- B) buccal cavity, bladder and lungs
- C) buccal cavity, skin and lungs
- D) gills, skin and buccal cavity
The diagrams below are illustrations of organisms in a habitat. Study them and answer the question, the producer in the diagram is
- A. IV because it is the largest organism in the diagram
- B. IV because it is the organism that receives the highest amount of sunlight
- C. I because it uses sunlight to manufacture food
- D. I because it contains the least amount of energy
The process that brings about the shrinking of a spirogyra cell when placed in a strong solution is ?
- A. osmosis
- B. autolysis
- C. plasmolysis
- D. diffusion
Gaseous exchange takes place in the adult toad through the
- A. buccal cavity, bladder and lungs
- B. buccal cavity, skin and lungs
- C. tympanic membrane, lungs and gills
- D. buccal cavity, skin and spiracle
Which of the following Best explains why It is difficult to see clearly in dim light?
- A. Initially the eyes cannot operate when the light is dim
- B. The choroid reflect all the light that enters the eye
- C. Too little light reaches the retina and so the cones may not be stimulated at all
- D. Dim light causes the pupil to close up so that not much light enters the eye
Which of the following ions is involved in the conduction of the nerve impulse?
- A. Ca2+
- B. K2+
- C. H+
- D. Mg2+
The vilius in the small intestine is significant because it
- A. increase the surface area for absorption
- B. increase the surface area for digestion
- C. assists in mixing digested food
- D. assists in filtering undigested food
(a) In sequence, name the organs that constitute the alimentary canal of humans
(b) State: (i) three structural differences; (ii) three structural similarities; between the alimentary canal of a bird and human.
(c) Explain briefly how the dentition of herbivores is adapted for feeding
(d) State two roles of the pancreas in digestion
View Discussion (0)WAEC 2016 THEORY