Practice Pakistan's most useful MCQs for competitive exams

There are __________ types of nutrients needed by plants besides light to carry out photosynthesis

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

Answer

Submitted By :Ali Uppal

Which of the following bones are present in pectoral girdle?

• (A)  Clavicle
• (B)  Scapula
• (C)  Both of these
• (D)  None of these

Answer

Submitted By :Ali Uppal

How many vertebrae are present in lumbar region?

• (A)  7
• (B)  12
• (C)  5
• (D)  4

Answer

Submitted By :Ali Uppal

S-band locomotion is characteristically seen in___________?

• (A)  Bony fish
• (B)  Cartilaginous fish.
• (C)  Fish like mammals.
• (D)  All fishes.

Answer

Submitted By :Ali Uppal

Which of the following is the swiftest form of the locomotion?

• (A)  Plantigrade
• (B)  Digitigrade
• (C)  Unguligrade
• (D)  Hopping

Answer

Submitted By :Ali Uppal

Exceptionally the positive hydrostatic pressure generated by root pressure is about___________?

• (A)  600 Kpa
• (B)  800 Kpa
• (C)  1000 Kpa
• (D)  900 Kpa

Answer

Submitted By :Ali Uppal

Commonly in other plants than tall ones the speed of upward movement of water is____________?

• (A)  8mh-1
• (B)  1 mh-1
• (C)  7 mh-1
• (D)  4 mh-1

Answer

Submitted By :Ali Uppal

___________ component of cell wall has grreat affinity with water?

• (A)  Lignin
• (B)  Cellulose
• (C)  Pectin
• (D)  All of these

Answer

Submitted By :Ali Uppal

___________ potential is the measure of the change in water potential of a system due to the presence of solute molecules?

• (A)  Osmotic
• (B)  Pressure
• (C)  Both of these
• (D)  None of these

Answer

Submitted By :Ali Uppal

The movement of water molecules from a region of higher water potential to a region of lower water potential (through membrane)

• (A)  Deffusion
• (B)  Osmosis
• (C)  Active transport
• (D)  None of these

Answer

Submitted By :Ali Uppal