Tag: life processes in living organism

Quizzes (52) Questions (18)

Questions Related to life processes in living organism

Multiple choice zoology life processes in living organism structure and function of spinal cord the spinal cord spinal cord

Lower part of filum terminale has only

  1. Pia mater

  2. Dura mater

  3. Arachnoid mater

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The filum terminale is an extension of the pia mater from the conus medullaris. The internal part is covered by pia mater, while the external part (filum terminale externum) is covered by a sheath of dura mater.

Multiple choice zoology life processes in living organism structure and function of spinal cord the spinal cord spinal cord

Last end of spinal cord is called

  1. Cauda equina

  2. Conus medullaris

  3. Funiculus

  4. Fasciculi
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The spinal cord begins at the occipital bone and extends down to space between the first and second lumbar vertebrae. The terminal portion of the spinal cord is called the conus medularis. It is tapperd and located near the lumbar vertebrae.

Multiple choice biology life processes in living organism movements in plants coordination in plants tropic and nastic movements in plants

Centromere is a part of chromosome which helps in the 

  1. Division of centrosomes

  2. Formation of spindle fibres

  3. Movement of chromosomes

  4. Formation of nuclear spindle
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Centromere joins the microtubules of 'Chromosomal spindle fibres and helps in the movement of chromosome during cell division. Centromere also plays an important role in the polymerization of tubulin protein used in the formation of microtubules. Hence it is helpful in attaching the chromosome with spindle fibres.

Multiple choice biology life processes in living organism movements in plants coordination in plants tropic and nastic movements in plants

Locomotion is a very important feature in animals.Considering the frequent need for locomotion in animals ,an animals would obtain the greatest benefit from storing its energy as 

  1. Proteins

  2. minerals

  3. Carbohydrates

  4. Fats
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fats store more than twice the amount of energy per unit mass compared to carbohydrates and proteins, making them the most lightweight and efficient form of long-term energy storage for mobile animals. Storing energy as glycogen or protein would add excessive weight.

Multiple choice biology life processes in living organism movements in plants coordination in plants tropic and nastic movements in plants

Which foramen is paired in mammalian brain ?

  1. Foramen of Monro

  2. Foramen of Magendie

  3. Interventricular foramen

  4. Foramen of Luschka
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Foramen of Luschka (lateral apertures) is a paired structure in the brain that allows cerebrospinal fluid to exit the fourth ventricle. The other listed foramina are singular structures.

Multiple choice biology life processes in living organism movements in plants coordination in plants tropic and nastic movements in plants

Which cranial nerve is present in Rabbit but absent in frog?

  1. Glossopharyngeal

  2. Hypoglossal

  3. Olfactory

  4. Optic
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The hypoglossal nerve (XII) is a cranial nerve present in mammals, including rabbits, but it is absent in amphibians like frogs. In frogs, the tongue muscles are innervated by spinal nerves rather than a dedicated cranial nerve.

Multiple choice zoology life processes in living organism control of blood glucose parts of the brain kidney

Hypothalamus is situated on the

  1. Upper lateral surface of diencephalon

  2. Lower lateral surface of diencephalon

  3. Ventral side of optic lobes

  4. Dorsal side of optic lobes

  5. Ventral part of the diencephalon
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The hypothalamus is located below the thalamus, just above the brainstem. It forms the ventral part of the diencephalon. 

Multiple choice zoology life processes in living organism control of blood glucose parts of the brain kidney

Septum lucidum is a part of the

  1. Pseudocoel

  2. Metacoel

  3. Diocoel

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

Septum lucidum is a thin membrane of nervous tissue, that forms the medial wall of the lateral ventricles in the brain. The septum lucidum is located in the midline of the brain, between the two cerebral hemispheres. It is attached superiorly to the corpus callosum. It is attached to the anterior part of the fornix, and on either side of the structure are the two lateral ventricles. During foetal development, there is a space between the two laminae, called as the cavum septi pellucidi, which disappears during infancy. The cavum is occasionally referred to as the fifth ventricle (pseudocoel).