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GK (Biology)

Description: General Science
Number of Questions: 25
Created by:
Tags: General Knowledge General Biology Science
Attempted 0/25 Correct 0 Score 0

Chordae tendinae are found in

  1. joints of legs

  2. atria of heart

  3. ventricles of brain

  4. ventricles of heart


Correct Option: D

Immunoglobulins are produced by

  1. lymphocytes

  2. spleen

  3. leucocytes

  4. monocytes


Correct Option: A
Explanation:

Immunoglobulins are produced by lymphocytes.

Thrombocytopenic purpura is a haemorrhagic disorder. This is caused due to

  1. very high platelet count

  2. very low platelet count

  3. low concentration of fibrinogen

  4. absence of vitamin K


Correct Option: B

Iron free compound of haemoglobin is

  1. haemotoxin

  2. bilirubin

  3. haematin

  4. globin


Correct Option: D

Megakaryocytes give rise to

  1. erythrocytes

  2. granulocytes

  3. agranulocytes

  4. thrombocytes


Correct Option: D

The pacemaker of the heart is situated

  1. in the wall of the left atrium close to the opening to pulmonary veins

  2. in the wall of the right atrium close to the eustachian valve

  3. on interauricular septum

  4. on the interventricular septum


Correct Option: B

The pigment haemocyanin is found in

  1. mollusca

  2. echinodermata

  3. chordate

  4. annelida


Correct Option: A

RBCs are generally destroyed in the liver while WBCs are destroyed

  1. in the plasma

  2. in the lymph

  3. inside various cells of the body

  4. in the spleen


Correct Option: D

Histamines are secreted by

  1. mast cells

  2. macrophages

  3. kupffer cells

  4. all of these


Correct Option: A

In mammals the blood from the right auricle goes to the

  1. systemic aorta

  2. precavals

  3. truncus arteriosus

  4. pulmonary aorta


Correct Option: D

Which of the following are not true cells in the blood?

  1. Platelets

  2. Monocytes

  3. Neutrophils

  4. Basophils


Correct Option: A

In which form is iron present in haemglobin

  1. Ionic

  2. unionic

  3. Fe2+

  4. Fe3+


Correct Option: C

The antigen of blood group 'A' is

  1. AB

  2. O

  3. A

  4. B


Correct Option: C

The sino-auricular valve occurs

  1. in the sinus venosus

  2. between the sinus venosus and the atrium

  3. in the truncus arteriosus

  4. at the auriculo-ventricular aperture


Correct Option: B

Tricuspid valves are found in

  1. all mammals

  2. all vertebrates

  3. prototherians

  4. walrus


Correct Option: A

The life span of human RBC is about

  1. 45 days

  2. 80 days

  3. 120 days

  4. 180 days


Correct Option: C

Which of the following is not the main function of lymph glands?

  1. Forming WBC

  2. Forming antibodies

  3. Destroying RBC

  4. Destroying bacteria


Correct Option: C

The mammal with nucleated RBC is

  1. rabbit

  2. camel

  3. monkey

  4. rat


Correct Option: B

Blood dust present in the blood plasma is known as

  1. blood platelets

  2. chylomicrons

  3. haemoconia

  4. chyluria


Correct Option: C

Which one of the following substances continues most to the causation of greenhouse effect in nature?

  1. Carbon dioxide

  2. Hydrogen fluoride

  3. Carbon monoxide

  4. Sulphur dioxide


Correct Option: A

Albumin, fibrinogen and prothrombin are manufactured in the

  1. liver

  2. bone marrow

  3. spleen

  4. pancreas


Correct Option: A

Hubble is a/an

  1. atomic weapon

  2. musical instruments

  3. astronomical telescope

  4. star


Correct Option: C

Which of the following is agranulocyte?

  1. Lymphocyte

  2. Eosinophil

  3. Basophil

  4. Neutrophil


Correct Option: A

Which of the following is not a measuring instrument?

  1. Barometer

  2. Thermometer

  3. Picometer

  4. Hygrometer


Correct Option: C

The coagulation of blood in vessels is prevented during normal conditions by

  1. heparin

  2. plasminogin

  3. calcium

  4. prothrombin


Correct Option: A
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