Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

Correct sequence of meninges of brain from outside inside is

  1. Duramater-Piamater- Arachnoid

  2. Piamater-Duramater- Arachnoid

  3. Arachnoid-Duramater- Piamater

  4. Duramater-Arachnoid- Piamater
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The meninges from the outermost to the innermost layer are the dura mater, the arachnoid mater, and the pia mater. This sequence provides protection to the brain.

Multiple choice biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

Lateral ventricles of brain are connected to the third ventricle by

  1. Spinal canal

  2. Corpus callosum

  3. Cerebellum

  4. None of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The lateral ventricles are connected to the third ventricle via the interventricular foramen (foramen of Monro). Since this is not listed in the options, 'None of the above' is the correct choice.

Multiple choice biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

Pons connects

  1. Brain with spinal cord

  2. Cerebrum with cerebellum

  3. Two-lobes of cerebellum

  4. Two cerebral hemispheres
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The pons varolii is a major structure in the brainstem that acts as a bridge, containing neural tracts that connect the cerebrum with the cerebellum. It coordinates communication between these regions to help regulate motor control and balance.

Multiple choice biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

Which of the following body part has more number of bone that others?

  1. Skull

  2. Chest

  3. Forelimb

  4. Pelvis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together. 

So, the correct option is ‘Skull’.

Multiple choice biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

The term "grey matter" refers to

  1. neurons that are unmyelinated

  2. axons that are myelinated

  3. dendrites that are myelinated

  4. neurons that are myelinated
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The grey matter is mainly composed of neuronal cell bodies and unmyelinated axons. In the grey matter, these axons are mainly unmyelinated, meaning they are not covered by a whitish-coloured, fatty protein called myelin. The grey matter serves to process information in the brain.

So, the correct answer is 'neurons that are unmyelinated'.
Multiple choice biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

Different portions of the brain are responsible for specific functions.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Different regions of the brain are responsible for specific functions. For example, the medulla oblongata is responsible for regulating heart beat and many other involuntary actions. The Broca region is responsible for speech and language etc. So, the correct answer is option A.

Multiple choice biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans
The central nervous system consists of the brain and spinal cord.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The central nervous system is responsible for integrating sensory information and responding accordingly. It consists of two main components:
  1. The spinal cord serves as a conduit for signals between the brain and the rest of the body. It also controls simple musculoskeletal reflexes without input from the brain.
  2. The brain is responsible for integrating sensory information and coordinating body function, both consciously and unconsciously.