Biology Mcqs

Higher turgor pressure in a plant cell is maintained by________________?

A. Large number of vacoules in a plant cell.
B. Higher ionic concentration inside vacuoles resulting from active pumg of ions at their tonoplastic membrane
C. Higher osmotic pressure of the cell vacuole
D. both b and c

Fibrous capsule surrounding synovial joints may be thickened at some places to form:

A. Synovial membrane.
B. Ligaments.
C. Muscles.
D. Tendon

Joint between two parietal bones, which is infact immovable one is an example of_________?

A. Fibrous joints.
B. Cartilaginous joints.
C. Synovial joints.
D. None of these

Which of the following plays the major role in providing support to young herbaceous parts of the plant?

A. Living cells of epidermis with higher turgor pressure.
B. Living cells of cortex and pith with higher turgor pressure.
C. Collenchyma cells
D. All of these

A joint formed between humerus, radius and ulna is an example of__________?

A. Immovable joint.
B. Slightly movable joint.
C. Freely movable joint.
D. Fibrous joint

Vocal cords are stretched across_______?

A. Larynx
B. Pharynx
C. Golttis
D. None of these

In most birds air sacs are ____________ in number?

A. 10
B. 3
C. 4
D. 9

Parabronchi are open at ______________ end/s?

A. Single
B. Both
C. Do not have opening
D. None of these

Respiratory distress syndrome is common especially for infants with a__________?

A. Less than 7 month
B. Less than 8 month
C. Less than 9 month
D. More than 9 month

Gaseous exchange through the skin is known as ______________ respiration?

A. Cuticular
B. Cutaneous
C. Skin
D. Pulmonary