Biology
Assertion (A): The aggregates of the cell bodies or perikaryons of neurons form the synapse.
Reason (R): Ganglia are the structures from which the nerve fibres may arise or enter into, whereas the synapse connects two neurons with a small gap in between.
- Both A and R are True
- Both A and R are False
- A is True and R is False
- A is False and R is True
Related Questions
Assertion (A): Haematuria is the condition in which the blood passes with urine due to some infection in the urinary tract, kidney stones or tumour.
Reason (R): An excessive number of RBCs and haemoglobin is produced in the bone marrow. So these are excreted out through the urine.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.
Assertion (A): Effectors are the part of our body which, on receiving stimulus, set up waves of impulses towards the central nervous system.
Reason (R): The specialized epithelial cells of certain organs are capable of receiving stimuli which can be light, sound, heat, pain, hunger, etc.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.
Assertion (A): The cerebellum is the largest portion of the brain.
Reason (R): Cerebellum is located just at the base of the cerebrum. It maintains body balance. Cerebrum is the seat of intelligence, consciousness and will power.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.
Assertion (A): The protective membranous covering of the brain and spinal cord are the same, whereas the bony coverings of these are cranium and vertebral column respectively.
Reason (R): Since both are very delicate and sensitive organs of our body, they are protected by a three-layered membrane known as meninges.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.