Which of the following mechanism is not involve in phtoprotection to plants?

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#Question id: 2101

#Unit 2. Cellular Organization

The enzyme in cholesterol biosynthesis subject to feedback inhibition is

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#Question id: 23488

#General Aptitude

Using websites to pour out one’s grievances is called:

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#Question id: 55

#Unit 1. Molecules and their Interaction Relevant to Biology

The standard free energy change for the reaction A → B is −15.0 kJ · mol−1. What is the equilibrium constant for the reaction at 25°C?

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#Question id: 11009

#Unit 7. System Physiology – Animal

What is the normal total delay of the cardiac impulse in the A-V node plus bundle?

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#Question id: 16118

#Unit 7. System Physiology – Animal

Following statements are regarding to the heat production by the activation of sympathetic nervous system.

A. Activation is stimulation of β receptors in brown fat, which increases metabolic rate and heat production.

B. Activation is stimulation of α2 receptors in brown fat, which increases metabolic rate and heat production.

C. Stimulation of α1 receptors in vascular smooth muscle of skin blood vessels, producing vasoconstriction. Vasoconstriction reduces blood flow to the surface of the skin.

D. Stimulation of α1 receptors in vascular smooth muscle of skin blood vessels, producing vasodilation. Vasodilation reduces blood flow to the surface of the skin.

Which of the following combination is correct?