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Which of the following is a colourless plastid?

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Important Questions on The Fundamental Unit of Life

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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
The eukaryotic chromosomes are made up of
MEDIUM
Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
Which of the following is not found in prokaryotes except?
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
Which of the following is not a divisional stage
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
In simple organisms, exchange of gases and excretion occurs through –
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
What will happen to cells of cyanobacteria if they are placed in purified water?
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
The plant cells become turgid due to-
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
Cell organelles are embedded in
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
Raisin placed in which solution will swell up
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
DNA synthesis occurs in which stage of cell cycle.
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
A biology teacher placed a hen’s egg in three different solutions:
 Solution A: Pure water,
 Solution B: saturated salt solution,
 Solution C: Hydrochloric acid
 The sequence of treatments and the ensuring probable effect on the egg are listed below:
 I. A - B - C -Remains unchanged
 II. B - C - A - Swells
 III. C - A - B - Shrinks
 IV. B - A - C - Loses salts
 Based on the above sequence to treatment which one of the options will be correct?
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
What is the number of chromosomes present in human gametes?
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
The plasma membrane (pm) forms the boundary of lung cells. Which of the following statements is true for the pm?
A. Plasma membrane is a semipermeable membrane
B. Water moves across the pm by osmosis.
C. O2 and CO2 can cross the pm by diffusion.
D. Na+ and K+ ions can pass the pm by diffusion.
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
Lipid molecule in the cell are synthesised by-
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
DNA of eukaryotes have
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
Which of the following is/are correct statement(s)?
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
The function of centrosome is-
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
If a cell is placed in hypertonic solution it will-
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell

Glucose is the prime source of energy in our body. However it is stored in the form of glycogen in the muscle and liver of animals and in the form of starch in plants. As a result, every time a cell requires glucose, it must hydrolyze glycogen which is an energy-consuming process. Why does the cell store glycogen instead of glucose in free form?

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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
Eukaryotic cells contain several membrane-bound subcellular structures called Organelles. The vacuole is one such organelle found in both animal and plant
cells. Which of the following statement are true for vacuoles?
A. Contain cell sap.
B. Provide turgidity to the plant cell.
C. Plant cell vacuoles are smaller than animals cell vacuoles.
D. Vacuoles store amino acids, sugar, acids and contain protein.
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Science>Biology>The Fundamental Unit of Life>Structural Organisation of a Cell
The solid linear cytoskeletal elements having a diameter of 7 nm and made up of a single type of monomer are known as: