ETEA MDCAT Past Paper 2024 Page 1

ETEA MDCAT Past Paper 2024

1- The peptidoglycan cell wall is specific to.

A. Amoeba

B. Bacteria

C. Protozoa

D. Virus

View Answer

Answer : B. Bacteria

Description

2- Where are spindle fibres attached on a chromosome during cell division.

A. Centromere

B. Histone proteins

C. Nucleolus

D. Telomere

View Answer

Answer : A. Centromere

Description

3- Which organelle contribute towards steroid production?

A. Endoplasmic Reticulum

B. Golgi apparatus

C. Ribosomes

D. Lysosome

View Answer

Answer : A. Endoplasmic Reticulum

Description

4- The lysosomes found in eukaryotes contain:

A. Hydrolytic enzymes

B. Melotic enzymes

C. Oxidative enzymes

D. Mitotic enzymes

View Answer

Answer : A. Hydrolytic enzymes

Description

5- Plasma membrane is differentially permeable membrane due to the presence of?

A. Carbohydrates

B. Lipids

C. Proteins

D. Vitamins

View Answer

Answer : C. Proteins

Description

6- The following function/activity is NOT controlled by the autonomic nervous system.

A. Cardiac muscles contraction

B. Salivation

C. Smooth muscles contraction

D. Thoughts and emotions

View Answer

Answer : D. Thoughts and emotions

Description

7- A motor neuron:

A. Carries impulse from receptors to CNS

B. Carries impulse from effectors to CNS

C. Carries impulse from CNS to muscles

D. Connects sensory nerves to ganglions

View Answer

Answer : C. Carries impulse from CNS to muscles

Description

8- Diffusion of ______ across the post synaptic membrane causes it to depolarise:

A. Calcium ions

B. Chloride ions

C. Potassium ions

D. Sodium ions

View Answer

Answer : D. Sodium ions

Description

9- A reflex action, does not involve the____.

A. Brain

B. Motor neuron

C. Sensory neuron

D. Spinal cord

View Answer

Answer : A. Brain

Description

10- What happens to the enzyme after an enzyme-catalysed reaction?

A. Reduced to inactive form

B. Becomes inert

C. Changes into substrate

D. Used for another reaction

View Answer

Answer : D. Used for another reaction

Description

11- Catalase can be activated at pH:

A. 1

B. 3

C. 5

D. 7

View Answer

Answer : D. 7

Description

12- Enzymatic activity can be inhibited by?

A. Heavy metal ions

B. Methane

C. Mutase

D. Noble gases

View Answer

Answer : A. Heavy metal ions

Description

13- A competitive inhibitor:

A. Accelerates the chemical reaction

B. Competes with the enzyme

C. Is irreversible

D. Is reversible

View Answer

Answer : D. Is reversible

Description

14- Wings of birds and that of flying lizards provide evidence of:

A. Convergent evolution

B. Divergent evolution

C. Same origin

D. No evolution

View Answer

Answer : A. Convergent evolution

Description

15- The embryological stages of ______ show similarity in anatomical features.

A. All living things

B. All non-vertebrates

C. All vertebrates

D. Human, jelly fish and mouse

View Answer

Answer : C. All vertebrates

Description

16- Which enzyme is secreted in the active form?

A. Amylase

B. Lipase

C. Peptidase

D. Protease

View Answer

Answer : A. Amylase

Description

17- Which hormone stimulates the secretion of gastric juice?

A. Cholecystokinin

B. Gastrin

C. Insulin

D. Secretin

View Answer

Answer : B. Gastrin

Description

18- In an inflammatory response, bradykinin causes?

A. Activation of natural killer cells

B. Blockage in blood vessels

C. Construction of blood vessels

D. Leakage of fluid from blood vessels

View Answer

Answer : D. Leakage of fluid from blood vessels

Description

19- Which of the following is an example of passive immunity?

A. Antibodies from mother’s milk

B. Previous chickenpox infection

C. Inactivated polio vaccine

D. Live polio vaccine

View Answer

Answer : A. Antibodies from mother’s milk

Description

20- Bacteria that lack flagella are called?

A. Amphitrichous

B. Atrichious

C. Lophotrichous

D. Peritrichous

View Answer

Answer : B. Atrichious

Description