Cells that have lost their water content are said to be deplasmolysed.
Important Questions on The Fundamental Unit of Life
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?
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.
Correct the following statements by changing the underlined words:
The cell sap of root hair is Hypotonic.
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.
Correct the following statements by changing the underlined words:
Xylem transports starch from the leaves to all parts of the plant body.
Differentiate between the following pairs on the basis of what is mentioned in the brackets:
Osmosis and Active Transport (Substances undergoing movement)
Differentiate between the following pairs on the basis of what is indicated in the brackets.
Hypotonic solution and Hypertonic solution [condition of a plant cell when placed in them].
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?
Give biological explanations for the following:
Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered
Assertion (): Pea seeds swell more on imbibition than wheat seeds.
Reason (): Proteins have a high imbibing capacity.
