Practice Pakistan's most useful MCQs for competitive exams

The pressure generated when water enters & inflates plant cells is called ___________ potential?

• (A)  Water
• (B)  Osmotic
• (C)  Pressure
• (D)  Solute

Answer

Submitted By :Ali Uppal

In plants, water potential is determined by major factors?

• (A)  Three
• (B)  Four
• (C)  Two
• (D)  Five

Answer

Submitted By :Ali Uppal

Cytoplasmic strands that extend through pores in adjacent cell walls are known as___________?

• (A)  Pseudopods
• (B)  Symplasts
• (C)  Plasmodesmata
• (D)  Pili

Answer

Submitted By :Ali Uppal

In the root cells _______ pathway becomes discontinuous in the endodermis due to the presence of casparian strip.

• (A)  Tonoplast
• (B)  Apoplast
• (C)  Symplast
• (D)  Vacuolar.

Answer

Submitted By :Ali Uppal

In plants, the neighbouring cells are connected with one another by__________?

• (A)  Plasmodesmata
• (B)  Cell walls
• (C)  Vacuoles
• (D)  Both ‘A’ & ‘B’

Answer

Submitted By :Ali Uppal

QRS complex represents____________?

• (A)  Atrial systole
• (B)  Ventricular systole
• (C)  Atrial diastole
• (D)  Ventricular diastole

Answer

Submitted By :Ali Uppal

Which of the following have thickest walls?

• (A)  Arteries
• (B)  Veins
• (C)  Capillaries
• (D)  None of these

Answer

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

Answer

Submitted By :Ali Uppal

All of the follwing are blood clots except:___________?

• (A)  Thrombus
• (B)  Embolus
• (C)  Atheroma
• (D)  Hematoma

Answer

Submitted By :Ali Uppal

It is the discharge of blood from blood vessels?

• (A)  Myocardial infarction
• (B)  Cerebral infarction
• (C)  Cerebral Hemorrhage
• (D)  Thromboembolism

Answer

Submitted By :Ali Uppal