Question

Briefly explain the following:
i) Osmosis
ii) Allele
iii) Pulse
iv) Reflex action
v) Synapse

Answer 1

Osmosis is the movement of the solvent through a semipermeable membrane down the concentration gradient.

The alternate forms of a gene are called as alleles.

Pulse refers to the vibration felt in arterial walls due to the expansion of the aorta after ventricular contraction.

An automatic, quick and innate response to particular stimuli that is mediated by the reflex arc is known as a reflex action.

Two neurons are never physically connected to each other and synapse is the gap between two neurons are in close proximity to allow the flow of information from one neuron is transmitted to the next one.