Biology Mcqs

QRS complex represents____________?

(A) Atrial systole

(B) Ventricular systole

(C) Atrial diastole

(D) Ventricular diastole

Submitted By: Ali Uppal


Which of the following have thickest walls?

(A) Arteries

(B) Veins

(C) Capillaries

(D) None of these

Submitted By: Ali Uppal


It is the measure of force with which blood pushes up against the walls of blood vessels.

(A) Stroke volume

(B) Cardiac output

(C) Blood pressure

(D) Blood flow

Submitted By: Ali Uppal


All of the follwing are blood clots except:___________?

(A) Thrombus

(B) Embolus

(C) Atheroma

(D) Hematoma

Submitted By: Ali Uppal


It is the discharge of blood from blood vessels?

(A) Myocardial infarction

(B) Cerebral infarction

(C) Cerebral Hemorrhage

(D) Thromboembolism

Submitted By: Ali Uppal


The flow of lymph is maintained by__________?

(A) Movement of viscera

(B) Breathing movements

(C) Valves

(D) All of these

Submitted By: Ali Uppal


Introduction of vaccine within the body to produce immunity is an example of____________?

(A) Artificially induced active immunity

(B) Naturally induced active immunity

(C) Artificially induced passive immunity

(D) Naturally induced passive immunity

Submitted By: Ali Uppal


Submitted By: Ali Uppal


All plants do not possess___________?

(A) Lenticels

(B) Cuticle

(C) Stomata

(D) All of these

Submitted By: Ali Uppal


Cuticular transpiration is _________ of total transpiration?

(A) 6-8%

(B) 5-7%

(C) 7-9%

(D) 4-6%

Submitted By: Ali Uppal