1997 - JAMB Biology Past Questions and Answers - page 2
11
In mammals, the exchange of nutrients and metabolic products occurs in the
A
lymph
B
lungs
C
heart
D
liver
correct option: a
Users' Answers & Comments12
the part of the stomach nearer the gullet is called th
A
epiglottis
B
cardiac spincter
C
duodenum
D
pyloric sphincter
correct option: b
Users' Answers & Comments13
Trace elements are required by plants mainly for the
A
formation of pigments and enzymes
B
production of energy and hormones
C
manufactured of carbohydrates
D
manufacture of proteins
correct option: a
Users' Answers & Comments14
A
IV
B
III
C
II
D
I
correct option: d
Users' Answers & Comments15
A
Crown
B
neck
C
root
D
gum
correct option: a
Users' Answers & Comments16
A food substance was treated with a few drops of Sudan III solution and a red coloration was obtained. The food contained
A
protein
B
starch
C
fat
D
mineral salt
correct option: c
Users' Answers & Comments17
Oozing out of water from the leaves of plants in a humid environment is known as
A
transpiration
B
osmosis
C
pinocytosis
D
guttation
correct option: d
Users' Answers & Comments18
The element that is essential for the coagulation of blood is
A
potassium
B
calcium
C
phosphorus
D
iron
correct option: b
Users' Answers & Comments19
Anaerobic respiration differs from aerobic respiration by the production of
A
less amount of energy and water
B
greater amount of energy and alcohol
C
less amount of energy and alcohol
D
greater amount of energy and water
correct option: c
Users' Answers & Comments20
Stomatal pores open when there is
A
an increase in the sugar content of guard cells
B
a decreases in the osmotic concentration of the guard cell
C
a decrease in the sugar content of mesophyll cells
D
an increase in the sugar content of mesophyll cells
correct option: a
Users' Answers & Comments