Biology Past Questions And Answers
2231
Active transport differs from diffusion in that active transport
- A. is a very fast process
- B. allows the movement of substances against concentration gradient
- C. takes place in both light and dark reaction of photosynthesis
- D. occurs in both plant and animal tissues
2232
In which of the following groups of fruits is the pericarp inseparable from the seed coat?
- A. Nut
- B. Follicle
- C. Cypsela
- D. Crayopsis
2233
Carnivorous plants are usually found in areas
- A. which are deficient of nitrate
- B. which are deficient of oxygen
- C. with low pH
- D. where insects are abundant
2234
The phenotype of an individual can be summed up as the
- A. totality of the expressed traits
- B. individual's physical appearance
- C. individual's entire genetical make-up
- D. physiological traits of individual
2235
Grasping fingers and toes as well as eyes positioned in front of the head are features of
- A) Certaceans
- B) Carnivores
- C) Rodents
- D) Primates
2236
A situation whereby some mammals remain inactive throughout dry and hot seasons is known as
- A. aestivation
- B. dormancy
- C. burrowing
- D. incubation
2237
An example of a trace elements is
- A. potassium
- B. calcium
- C. magnesium
- D. copper
2238
The living materials of the cell consist of
- A. nucleus and cytoplasm
- B. cytoplasm and vacuole
- C. cytoplasm and cell membrane
- D. nucleus and cell membrane
2239
Secondary growth is brought about by the activities of the
- A. phellogen and phelloderm
- B. phellogen and procambium.
- C. vascular cambium and phelloderm
- D. vascular cambium and phellogen
2240
For growth to occur in organisms, the rate of
- A. anabolism must exceed that of catabolism
- B. catabolism must exceed that of anabolism
- C. food storage must be low
- D. food storage must be high