AIIMS Zoology Class 11 Questions

Free swimming, radially symmetrical animals with cnidocytes belong to

Which cannot be used for direct gene transfer

Neurotransmitter released by

Choose the correct difference from the following

Characteristics of female cockroach

Identify the given diagram of tissue performing secretion and absorption

What is the function of Bowman's capsule and Glomerulus

Which of the following options have features corresponding to the given animals

Choose the correct statement for Periplaneta americana

Animal of which phylum have hooks and suckers and are endoparasite on other animals

Acoelomate animals with flame cells are:

Assertion: Cockroach shows sexual dimorphisms. Reason: The female cockroach bears a pair of short thread like anal styles.

Match the following columns.

Which of the following has highest pH?

Select the incorrect matching –

Select the option with correct matching of animal group and its examples.

Select the correct matching:

Select the correct option for Reptilia.

Find out the correct option about Coelenterata

Which of the following are true about Mollusca?

During conduction of nerve impulse

Creatinine is formed by –

During rest, sodium pump of a nerve results in

Which among the following is predominant epithelia in digestive tract?

Assertion: A piece of DNA inserted into an alien organism generally does not replicate if not inserted into a chromosome.

Reason: Chromosomes have specific sequences called ‘ori’ region where DNA replication is initiated.

In which among the following animals, retrogressive metamorphosis is found?

Identify the incorrect match from those given below

Which of the following process of urine formation takes place all along the renal tubule and collecting duct?

Which one of the following pairs is the matching pair of the part and the hormone it secretes?

Read the Assertion and Reason carefully to mark the correct option from those given below Assertion Arrival of an impulse at the axon terminal stimulates the release of neurotransmitters in synaptic cleft. Reason These neurotransmitters are responsible for the opening of ion channels.

Pseudostratified epithelium is found in

Which one of the following is not a mammalian character?

Retrogressive metamorphosis occurs in

The H⁻zone in the skeletal muscle fibre is due to

Which of the following represents the action of insulin?

Assertion: In Pleuraobrachia, eight comb like ciliary plates called comb plates are present on the body that help in locomotion. Reason: Pleurobrachia reproduces sexually and its life cycle includes cydippid larva.

Assertion: All motor neurons nerve impulses from the spinal cord to the brain. Reason: Motor neurons conduct nerve impulses from the spinal cord to the brain.

Schizocoelomates and enterocoelomates are

A person sitting at rest experiences a temporary cessation of breathing after forced deep breathing for a few minutes. This is due to

What is not a common feature is Periplaneta and Scorpions?

A gland called ‘Clock of ageing’ that gradually reduces and degenerates in ageing is

Stinging capsules (nematocysts) are found in

In the given table, some organisms are classified into categories. However, there is one exception. Select the option with correctly mentioned exceptional organism.

Which of the following is correct regarding respiration in adult frog?

Na⁺/K⁺ pump is associated with

During muscular contraction, which of the following events occur? (i) H⁻zone disappears (ii) A band widens (iii) I band reduces in width (iv) Width of A band is unaffected (v) M line and Z line come closer.

The release of chemical messenger from synaptic vesicles is under the influence of these ion(s).

Catecholamine in a normal person induces

Select the option having all the correct matches. Structure Percentage Function

Oxygen binding to haemoglobin in blood is