The force on molecules to move from areas of high concentration to areas of low

Question

The force on molecules to move from areas of high concentration to areas of low concentration is ________________   whereas the force on two ions with similar charge to repel each other and the force of two ions with opposite charge to attract to one another is ________________________

Question 6 options:

a)

Electrostatic pressure……….Diffusion

b)

Diffusion……….Electrostatic pressure

c)

Excitatory transmission……….Electrostatic pressure

The photoreceptor that provides information about ambient light that synchronizes circadian rhythms is called

Question 1 options:

A)

Ventriculin

B)

Melanopsin

C)

Kisspeptin

Which of the following statements is false?

a)

Another name for progenitor cells is neuroblasts

b)

Progenitor cells that form neuroepithelium of the neural tube generate all the neurons and glial cells of the central nervous system

c)

During early stages of CNS development, neuroblasts rapidly divide and specialize into many varieties of neurons and glial cells

d)

The proliferation of neurons and glial cells is uniform along the neural tube

a)

Electrostatic pressure……….Diffusion

b)

Diffusion……….Electrostatic pressure

c)

Excitatory transmission……….Electrostatic pressure

Explanation / Answer

Ans 6 b) Diffusion .......electrostatic pressure

When the substance moves from a region of higher concentration to the lower concentration , it is called as diffusion. It does not require the input of energy , as the substance moves along its concentration gradient.

The force acting on the charged species is the electrostatic pressure or the ionic pressure. Like charges tend to repel whereas the unlike charges attract each other.

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