Support and Movement Mcqs

This Set of Multiple choice questions and answers focuses on study of Support and Movement in Biology. These questions are chosen from a collection of most authoritative and best reference books on Biology. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Medicine industry job interviews. One should practice our Mcqs to assimilate knowledge on Support and Movement comprehensively.

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1.
Which of the following plays the major role in providing support to young herbaceous parts of the plant:

Living cells of epidermis with higher turgor pressure.

Living cells of cortex and pith with higher turgor pressure.

Collenchyma cells

All of these

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2.
Higher turgor pressure in a plant cell is maintained by:

Large number of vacoules in a plant cell.

Higher ionic concentration inside vacuoles resulting from active pumping of ions at their tonoplastic membrane

Higher osmotic pressure of the cell vacuole

Both b and c

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3.
Secondary cell wall of sclerenchyma cells is impregnated with

Cellulose.

Peptidoglycan and murein.

Lignin.

Pectin.

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4.
Among the followings which is the most longest supportive cell?

Tracheids.

Sclereids.

Trachea.

Collenchyma cells

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5.
An increrase in plant girth due to activity of _____ is called secondary growth.

Cork cambium

Pith.

Vascular cambium.

Both a and c

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6.
Vascular Cambium initially appears as actively dividing cells between:

Primary Xylem and secondary xylem.

Primary xylem and secondary phloem.

Primary xylem and primary phloem

Secondary xylem and secondary phloem.

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7.
Sperms of liverworts, mosses, ferns move towards archegonia, in response to uncleic acid released by the ovum. This is an example of:

Chemotropic movement

Chemotactic movement.

Chemosastic movement

Haptonastic movement.

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9.
Rapid movement of leaves of mimosa on touching is an example of :

Turgor movement

Nastic movement

Tropic movements.

Growth movement

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10.
Roots of a plant show

Positive phototropism and negative geotropism.

Negative phototropism and positive geotropism.

Negative tactic movement and positive tropic movement.

Positive geotropism of stem and roots

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12.
Gibberellins is an example of

Growth inhibitor

Growth stimulator

Growth hormone

None of these

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13.
Which of the following animal has a hydrostatic skeleton:

Earthworm.

Round worm.

Tape worm.

Pin worm

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14.
In an annelids, the contraction of circular muscle results in:

Lengthening of the body.

Shortening of the body.

Widening of body

Thinning of body

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15.
Which of the following statement is incorrect about Molluscans?

They are surrounded by single or double pieces of hard skeleton.

Their shell grows as the animal grows.

They have hydrostatic skeleton.

They move by tube feet

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