Home
Class 11
BIOLOGY
Assertion : Neurons protect and support ...

Assertion : Neurons protect and support the neuroglial cells
Reason : Neuroglial cells make up ninety per cent neutal tissue in our body.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
D

Neutroglia or neuroglial cells are specialised cells found in the brain and spinal cord supporting the neurons and their fibres. About 50 percent of all brain cells neuroglial cells.
Promotional Banner

Similar Questions

Explore conceptually related problems

Nervous tissue is made up of neutrons and neutroglial cells. Which of the following statements about these two cells is/are false ? (i) Neuroglia make up more than one-half the volume of neutral tissue in our body (ii) Neuroglia protect and support neurons (iii) When a neuron is suitaly stimulated, an electrical disturbance is generated which swiftly travels along its cytosol (iv) Arrival of the disturbance at the neuron's endings triggers stimulation or inhibition of adjacent neurons or other cells.

Assertion (A) : Tissue culture is practiced with plant cells. Reason (R) : Animal cells do not show totipotency.

Read the following statements and select the correct option (i) Blood cells secrete fibres of structural proteins called collagen and elastin (ii) Neuroglial cells protect and support the nephrons (iii) Osteocytes are present in spaces called lacunae (iv) Striated muscle fibres are bundled together in a parallel fashion (v) Biceps are involuntary and striated.

Assertion : Cell junctions are present in the epithelium and other tissues Reason : Among cell junctions, adhering junctions help to stop substances from leaking across a tissue

Assertion (A) : Tissue is a group of dissimilar cells. Reason (R) : Muscle is made up of Muscle cell.

Assertion (A): Bones support and protect- softer tissues and organs. Reasons (R): Bones have a hard and non-pliable ground substance rich in calcium salts and collagen fibres which given strength to the bones.

Assertion : In tissue culture, whole plant can be produced from plant cell. Reason : The capacity to generate a whole plant from any cell/explant is called totipotency.

Assertion: Phloem fibres or bast fibres are made up of collenchymatous cells. Reason: Phloem fibres are generally found in primary phloem.

Assertion : During embryo development in dicots, suspensor serves as the main nutritive tissue for the embryo. Reason : The last cell of the suspensor at the end adjacent to the embryo is known as haustorium.