Which of the following structures between two adjacent cells forms an effective transport pathway?
Options
(a) Plasmodesmata (b) Plastoquinoes (c) Endoplasmic reticulum (d) Plasmalemma
Correct Answer:
Plasmodesmata
Explanation:
No explanation available. Be the […]
An elaborate network of filamentous proteinaceous structures present in the cytoplasm which helps in the maintenance of cell shape is called
Options
(a) thylakoid (b) endoplasmic reticulum (c) plasmalemma (d) cytoskeleton
Correct Answer: […]
A tuning fork of frequency 512 Hz makes 4 beats per second with the vibrating string of a piano. The beat frequency decreases to 2 beats per sec when the tension in the piano string […]
A transverse wave is represented by y = a sin (?t – kx). For what value of the wavelength is the wave velocity equal to the maximum particle velocity?
Options
(a) πA / […]
If ∆U and ∆W represent the increase in internal energy and work done by the system respectively in a thermodynamical process, which of the following is true?
Options
(a) ∆U = – ∆W, […]
Two parallel metal plates having charges +Q and -Q face each other at a certain distance between them. If the plates are now dipped in kerosene oil tank, the electric field between the plates will […]
A series combination of n₁ capacitors, each of value C₁, is charged by a source of potential difference 4 V. When another parallel combination of n₂ capacitors, each of value C₂, is charged by a […]
The electric field at a distance 3R / 2 from the centre of a charged conducting spherical shell of radius R is E. The electric field at a distance R/2 from the centre of the […]
Two positive ions, each carrying a charge q, are separated by a distance d. If F is the force of repulsion between the ions, the number of electrons missing from each ion will be ( […]
A condenser of capacity C is charged to a potential difference of V₁. The plates of the condenser are then connected to an ideal inductor of inductance L. The current through the inductor when the […]
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