MECEE-BL Entrance Zoology Questions with Answers

Choanocytes (collar cells) are characteristic of phylum

Answer: Porifera

Stinging cells called cnidoblasts are found in

Answer: Hydra

A water vascular system used for locomotion and feeding is a feature of

Answer: Echinodermata

A bilaterally symmetrical, unsegmented animal with a pseudocoelom and a complete alimentary canal is most likely

Answer: Ascaris

Cockroach breathes through

Answer: tracheae opening by spiracles

In cockroach, nitrogenous wastes are removed mainly by

Answer: Malpighian tubules

Which tissue lines the walls of alveoli and blood capillaries to allow rapid diffusion?

Answer: Simple squamous epithelium

Bone-forming cells are called

Answer: osteoblasts

Intercalated discs are a distinguishing feature of

Answer: cardiac muscle

The part of a neuron that receives impulses and conducts them toward the cell body is the

Answer: dendrite

Typhoid fever is caused by

Answer: Salmonella typhi

Antibodies are secreted mainly by

Answer: plasma cells

A snake-bite victim is given antivenom containing ready-made antibodies. This provides

Answer: passive immunity

The BCG vaccine is given to protect against

Answer: tuberculosis

Insulin is secreted by the

Answer: beta cells of the islets of Langerhans

Oxytocin, which stimulates uterine contraction during childbirth, is released from the

Answer: posterior pituitary

Deficiency of thyroxine in an adult causes

Answer: myxoedema

The natural pacemaker of the human heart is the

Answer: sinoatrial node

The universal blood donor is

Answer: O negative

A patient with blood group A needs a transfusion and group A blood is not available. Which group can be given safely (ignoring Rh)?

Answer: O

The idea that the long neck of the giraffe arose because ancestors kept stretching to reach leaves and passed on this acquired trait was proposed by

Answer: Lamarck

In industrial areas the dark form of the peppered moth became common because birds ate the light form more often. This is an example of

Answer: natural selection

The excretory organs of earthworm are

Answer: nephridia

The clitellum of earthworm, concerned with cocoon formation, lies in segments

Answer: 14 to 16

The enzyme in saliva that begins the digestion of starch is

Answer: salivary amylase

The enzyme pepsin works best in the stomach because gastric juice

Answer: is strongly acidic due to HCl

The structural and functional unit of the kidney is the

Answer: nephron

A person's urine is found to contain protein. The part of the nephron most likely damaged is the

Answer: glomerulus

The approximate tidal volume of a healthy adult at rest is

Answer: 500 mL

Most of the oxygen in blood is transported as

Answer: oxyhaemoglobin

Conservation of animals within their natural habitat, as in a national park, is called

Answer: in situ conservation

A catalogue that lists endangered and threatened species worldwide is the

Answer: IUCN Red Data Book

The forelimb of a human and the wing of a bat are examples of

Answer: homologous organs

The heart of a frog has

Answer: two atria and one ventricle

The stage of Plasmodium that is injected into humans by the bite of a female Anopheles is the

Answer: sporozoite

The part of the brain that coordinates balance and posture is the

Answer: cerebellum

Vision in dim light is mainly due to

Answer: rod cells

Fertilization in the human female normally occurs in the

Answer: ampulla of the fallopian tube

Imaging of a foetus inside the uterus without ionizing radiation is done by

Answer: ultrasonography

The technique used to make millions of copies of a specific DNA segment in vitro is

Answer: PCR