Tag: zoology

Questions Related to zoology

Cell body is known as

  1. Axon

  2. Cyton

  3. Neuron

  4. None of he above

Correct Option: B
Neurons are made up of three parts: cell body, dendrites, and axon. The cell body is also known as cyton consists of nucleus and cytoplasm. Dendrites are short branches arising from cell body whereas axon is a long cylindrical projection of uniform thickness.
So, the correct answer is 'Cyton'.

The voluntary muscles are known as

  1. Striated muscles

  2. Cardiac muscles

  3. Unstriated muscles

  4. None of the above

Correct Option: A
Striated muscles or skeletal muscles are the most abundant type of muscle fibers found attached to the bones. They are multinucleated and voluntary in nature. They help in the movement of different parts of the body.
So, the correct answer is 'Striated muscles'.

Which of the following characteristics can be related to cardiac muscles?

  1. They are striated.

  2. They are involuntary muscles.

  3. They are less prone to fatigue.

  4. All of the above

Correct Option: D
The cardiac muscles are present on the wall of the heart. These muscles are striated muscles but involuntary in nature. They are under the control of the autonomic nervous system. Due to the presence of large number of mitochondria, they have the continuous supply of oxygen and hence these muscles are less prone to fatigue.
So the correct answer is 'All of the above'.

The squamous epithelium is mainly involved in

  1. Protection

  2. Absorption

  3. Secretion

  4. None of these

Correct Option: A

Squamous epithelium is a type of epithelium tissue. The cells of this tissue are thin, flat and closely packed. These are found in cavities of mouth, oesophagus, alveoli and blood vessels. This tissue gives protection against mechanical injury and also blocks the entry of pathogens or germs. 

So, the correct option is 'Protection'.

Which of the following levels of structure encompasses all the other?

  1. Tissue

  2. Cell

  3. Organism

  4. Organ or organ system

Correct Option: A

Choose the correct answers from the alternatives given.
Which one of the following is not a characteristic of animals?

  1. Heterotrophic

  2. Diplontic life cycle

  3. Have contracting fibres

  4. Single cells or colonial

Correct Option: D

All animals are eukaryotic, multicellular organisms, and most animals have complex tissue structure with differentiated and specialized tissue. Animals are heterotrophs; they must consume living or dead organisms since they cannot synthesize their own food and can be carnivores, herbivores, omnivores, or parasites.

So, the correct option is 'Single cells or colonial'.

The bundle of axon is known as

  1. Nerve

  2. Cyton

  3. Axon

  4. None of these

Correct Option: A
Axon is a part of nerve cells or neurons. The bundle of the axon is called a nerve in the peripheral nervous system while it is called a tract in the central nervous system. 
So, the correct answer is 'Nerve'

A frog with crushed brain is pinched on the leg. The leg is drawn away. It is

  1. Automatic motor response

  2. Neurotransmitter induced response

  3. Conditional reflex

  4. Simple reflex

Correct Option: D

What is true about buccophayngeal respiration in frog-

  1. Sternohyal muscle contracted-Buccal air pumped into lungs. petrohyal muscle cotractedpulmonary air pumped out.

  2. Sternohyal muscle contracted-atmospheric air sucked in, petrohyal muscle contract-Buccal air pumped out

  3. Sterohyal muscle relaxed-atmospheric air pumped out, petrohyal muscle contracted-Buccal air pumped into lungs

  4. None

Correct Option: A

What happens if ophthalmic branch of trigeminal is cut in frog?

  1. Frog dies

  2. Frog becomes blind

  3. Frog loses its capacity of sensing

  4. None of the above

Correct Option: C