Which of the following statements is not correct of respiration?
Gaseous exchange occurs by diffusion
Oxygen combines with haemoglobin at the respiratory surface
Carbondioxide produced in the tissues is removed via osmosis
There are no special organs for respiration in plants
In higher animals, respiratory gases are transported in solution
Correct answer is C
No explanation has been provided for this answer.
At the end of mitosis the number of cells produced from a parent cell is
four
six
eight
three
two
Correct answer is E
No explanation has been provided for this answer.
Which of the following structures differentiates an animal cell from a plant cell?
Ribosomes
Cell membrane
Chloroplast
Mitochondrion
Lysosome
Correct answer is C
No explanation has been provided for this answer.
The structure in the cell that controls the movement of substances in and out of the cell is the
cytoplasmic membrane
nuclear membrane
cytoplasm
protoplasm
endoplasm
Correct answer is A
No explanation has been provided for this answer.
Most of the energy in the cell is produced in the
mitochondrion
lysosome
plastid
Golgi apparatus
cytoplasm
Correct answer is A
No explanation has been provided for this answer.