12th Class Biology MCQS Growth and Development

Google Ads1

FOCUSKEYWORD


For maximum growth the optimum temperature is 25 – 30oC and it least at
1 – 3oC
6 – 12oC
5 – 10oC
4 – 8oC

The functions of oxytocin islare to ___________
Stimulate the release of milk from the mother’s mammary glands when her baby is nursing
All of the above
Induce labor
Cause the uterus to contract

Deficiency of vasopressin or ADH by the pituitary gland leads to a disorder in which the patients kidney have lessoned ability to absorb water is:
Exophthalmic goiter
Diabetes mellitus
Goiter
Diabetes insipidus

in plants regeneration is the basis of plant
Birds
Reptiles
Amphibian
Fishes

Primary tissue is added by the
Underground meristem
Apical meristem
Lateral meristem
Vertical meristem

An ordered sequence of irrversible steps with each step setting up the necessary conditions for the next step is
Development
Growth
Embryology
None of these

If lobster loses its pincer claw a new claw
Regenerates
IS ready
None of these
Never develops

During elongation the cell volume increase up to 150 fold due to uptake of
Carbon dioxide
Light
Water
Oxygen

In chordates the healing of fracture and repair of a skin wound are some other examples of
Reformation
Renaissance
Rejuvenation
Regeneration

Parathyroid hormone acts to ensure that
Sodium levels in urine are constant
The concentration of water in the blood is sufficient
Potassium levels in the blood do not escalate
Calcium levels in the blood never drop too low

Which one of the following condition is resulted from excess GH in adults?
Diabetes mellitus
Hyperthyroidism
Cushing’s disease
Acromegaly
Google Ads