Blog Log in Get Started Free

Zoology MCQs for NEET — Practice Questions with Answers

Practice free Zoology NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

All Physics Chemistry Botany Zoology

Chapter Language Difficulty Show only questions I answered incorrectly Register free to filter questions

● ● ● ● ●

The tricuspid and bicuspid Valves are closed because of

Atrial systole

Attempted backflow of blood into the atria

Ventricular relaxation

Ventricular filling

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

NCERT, P-285, Para 1, 1^st line

● ● ● ● ●

Arrange the following events in a proper sequence.

(i) Increased ventricular pressure

(ii) Attempted backflow of blood into the atria

(iii) Ventricular systole

(iv) Closure of AV valves

(i) – (ii) – (iii) – (iv)

(ii) – (i) – (iii) – (iv)

(iii) – (i) – (ii) – (iv)

(i) – (iii) – (ii) – (iv)

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

NCERT, P-284, 285; Cardiac Cycle

● ● ● ● ●

Imagine, if the semilunar valves do not work, which of the following event won’t happen surely?

Atrial Contraction

Ventricular Contraction

flow of blood

Heart sound production

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

AS other options may also be correct but the most appropriate will be sound production which completely depends on its functioning.

● ● ● ● ●

Tricuspid Valves are present between

left atria and aorta

right atria and right ventricle

left atria and left ventricle

both (1) and (2)

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

NCERT, P -283, Human Circulatory System, Para 2

● ● ● ● ●

Platelets are formed from–

Megakaryoblast

Megakaryocyte

Macrokaryoblast

Macrophages

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

NCERT, P -280, Para 2

● ● ● ● ●

______ population has Rh ______ on the surface of ______ present in their ______.

20%, antigen, platelets, plasma

80%, antigen, RBC, blood

80%, antibody, platelet, plasma

20%, antibody, RBC, blood

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

NCERT, P -281, Rh Grouping

● ● ● ● ●

If a person gets his blood count done from a lab and finds his platelets to be 20000 and then meets an accident on that day. Which of the following is correct?

as the platelet count is normal, there will be no harm to him because of platelets.

Clotting disorders

Severe Blood loss from body

both (2) and (3)

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

He has very less platelets count- No blood clotting- Death

● ● ● ● ●

The number of RBC in a healthy individual are:

5 million to 5.5 million RBCs

5 billion to 5.5 billion RBCs

1 million to 1.5 million RBCs

1 billion to 1.5 billion RBCs

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

NCERT, P-279, Formed Elements

● ● ● ● ●

The transport of respiratory gases is taken care by which blood component?

RBC

WBC

Platelets

Fibrinogen

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

NCERT, P-279, Formed Elements

● ● ● ● ●

Hemoglobin in healthy individual:

12–20 g/10 mL of blood

12–14 g/100 mL of blood

12–30 g/10 mL of blood

12–14 g/10 mL of blood

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

NCERT, P-279, Formed Elements

Ready to ace NEET?

Free access · No credit card required

Browse All Questions Create Free Account

Frequently Asked Questions

Yes. You can attempt every Zoology question on this page for free without logging in, and check the correct answer with a detailed explanation instantly.

No account is required to attempt questions and view answers. A free account adds bookmarks, personal notes, and progress tracking.

The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.