Select the phase in which actual cell division occurs

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Questions Match

1.
Select the phase in which actual cell division occurs

1. G12. G23. M4. S

2.
Select the incorrect statement:

1. Smooth muscle fibres are spindle shaped2. Skeletal muscle fibres are unbranched3. Cardiac muscle fibres are multinucleate4. Cardiac muscles never fatigue

3.
Select the statement which is not correct with respect to the factors affecting enzyme activity

1. Enzymes generally function at a wide range of temperature2. Every enzyme has an optimum pH at which it is most effective3. Increase in substrate concentration, increases the velocity of enzyme catalysed reaction at first.4. The temperature at which enzyme shows its highest activity is called its optimum temperature

4.
Select the correct sequence of steps involved in respiration
a. Transport of gases by blood
b. Pulmonary ventilation by which atmospheric air is drawn in and CO₂ rich alveolar air is released out
c. Diffusion of O₂ and CO₂ between blood and tissues
d. Diffusion of gases across alveolar membrane

1. a, b, c & d2. a, c, d & b3. b, d, a & c4. b, a, d & c

5.
Select the incorrect statement from the following

1. For efficient diffusion to occur, membrane should be very thin2. The wall of alveoli is very thick and has rich network of blood capillaries3. The pO2 in the atmospheric air is 159 mm Hg4. Gases diffuse from higher partial pressure to lower partial pressure

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Select the phase in which actual cell division occurs