Year :
2005
Title :
Biology
Exam :
WASSCE/WAEC MAY/JUNE
Paper 1 | Objectives
31 - 40 of 61 Questions
| # | Question | Ans |
|---|---|---|
| 31. |
Which of the following substances has the highest amount of energy in joules per unit weight? A. Carbohydrates B. Proteins C. Fats D. Vitamins Detailed SolutionFats and ethanol have the greatest amount of food energy per mass, 37 and 29 kJ/g (8.8 and 6.9 kcal/g), respectively. Proteins and most carbohydrates have about 17 kJ/g (4 kcal/g) |
|
| 32. |
Which of the following elements is required in large amounts by plants A. Molybdenum B. Boron C. Copper D. Phosphorus |
D |
| 33. |
Which of the following juices contains the enzyme ptyalin? A. Gastric juice B. Pancreatic juice C. Succus D. Saliva |
D |
| 34. |
Trees in savannah habitats usually have heavy thick bark which mainly A. reduces the rate of transpiration B. protect them from the scorching sun C. protect them from heavy winds D. resist bush tires |
A |
| 35. |
In the marine food web, the source of energy to the producer comes from A. sea waves B. sea water C. sun D. air |
C |
| 36. |
A population is best described as A. a group of the same species of organisms living together B. a group of animals and plants living together C. a group of insects and grasses D. different species of wild animals |
A |
| 37. |
Possession of strong adhesives is a feature of animals living in/on A. sandy beaches B. rocky shores C. benthic zones D. deserts |
B |
| 38. |
A stable self-sustaining environment produced by an interaction between the biotic and abiotic components is best described as A. a niche B. a community C. an ecosystem D. a habitat |
C |
| 39. |
Which of the following factors is not associated with aquatic habitats? A. Salinity B. Turbidity C. Temperature D. Edaphic |
D |
| 40. |
Which of the following instruments is used to measure the speed of a stream? A. Simple float B. Secchi disc C. Quadrat frame D. Rain gauge |
A |
| 31. |
Which of the following substances has the highest amount of energy in joules per unit weight? A. Carbohydrates B. Proteins C. Fats D. Vitamins Detailed SolutionFats and ethanol have the greatest amount of food energy per mass, 37 and 29 kJ/g (8.8 and 6.9 kcal/g), respectively. Proteins and most carbohydrates have about 17 kJ/g (4 kcal/g) |
|
| 32. |
Which of the following elements is required in large amounts by plants A. Molybdenum B. Boron C. Copper D. Phosphorus |
D |
| 33. |
Which of the following juices contains the enzyme ptyalin? A. Gastric juice B. Pancreatic juice C. Succus D. Saliva |
D |
| 34. |
Trees in savannah habitats usually have heavy thick bark which mainly A. reduces the rate of transpiration B. protect them from the scorching sun C. protect them from heavy winds D. resist bush tires |
A |
| 35. |
In the marine food web, the source of energy to the producer comes from A. sea waves B. sea water C. sun D. air |
C |
| 36. |
A population is best described as A. a group of the same species of organisms living together B. a group of animals and plants living together C. a group of insects and grasses D. different species of wild animals |
A |
| 37. |
Possession of strong adhesives is a feature of animals living in/on A. sandy beaches B. rocky shores C. benthic zones D. deserts |
B |
| 38. |
A stable self-sustaining environment produced by an interaction between the biotic and abiotic components is best described as A. a niche B. a community C. an ecosystem D. a habitat |
C |
| 39. |
Which of the following factors is not associated with aquatic habitats? A. Salinity B. Turbidity C. Temperature D. Edaphic |
D |
| 40. |
Which of the following instruments is used to measure the speed of a stream? A. Simple float B. Secchi disc C. Quadrat frame D. Rain gauge |
A |