Home
Class 11
BIOLOGY
Smaller, liquid soluble molecules diffus...

Smaller, liquid soluble molecules diffuse faster through cell membrane, but the movement of hydrophilic substances is facilitated by certain transporters which are chemically…

Text Solution

Verified by Experts

Proteins.
Promotional Banner

Topper's Solved these Questions

  • CELL CYCLE AND CELL DIVISION

    SUBHASH PUBLICATION|Exercise TWO MARKS QUESTIONS AND ANSWERS|10 Videos

  • CELL CYCLE AND CELL DIVISION

    SUBHASH PUBLICATION|Exercise THREE MARKS QUESTIONS AND ANSWERS|5 Videos

  • BREATHING AND EXCHANGE OF GASES

    SUBHASH PUBLICATION|Exercise FIVE MARK QUESTIONS AND ANSWERS|4 Videos

  • CELL: THE UNIT OF LIFE

    SUBHASH PUBLICATION|Exercise FIVE MARKS QUESTIONS AND ANSWERS|8 Videos

Similar Questions

Explore conceptually related problems

In cell membrane which molecules show flip flop diffusion

Go through the following statements (i) In human beings, the membrane of the erythrocyte has approximately 52 percent lipids and 40 percent proteins (ii) Lipids are arranged within the membrane with the hydrophobic tails towards the outer side and the polar head towards the inner side. (iii) As the polar molecules cannot pass through the non- polar lipid bilayer, they require a carrier protein of the membrane to facilitate their transport across the membrane (iv) The endomembrane system includes endoplasmic reticulum, Golgi complex, lysosomes and peroxisomes Find out the wrong peroxisomes :

[A]: Taste buds are called the sense organs for olfaction [R]: Taste buds bear olfactory receptor cells which get stimulated by certain chemical substances

Which of the following statements is /are true? (i) The apoplastic movement of water occurs exclusively through the cell wall without crossing any membranes. (ii) The apoplastic movement occurs from cell to cell through the plasmodesmata (iii) endodermis, is impervious to water because of a band of suberised matrix. (iv) Symplastic movement may be aided by cytoplasmic streaming which occurs in hydrilla leaf and chloroplast.

For completion of the respiration process, write the given steps in their proper sequence tail manner. (a) Diffusion of gases ( O_(2) , and CO_(2) ) across alveolar membrane. ( b) Transport of gases by blood. (c ) Utilisation of O_(2) by the cells for catabolic reactions and resultant release of CO_(2) . ( d) Pulmonary ventilation by which, atmospheric air is drawn in and CO_(2) rich alveolar air is released out. ( e ) Diffusion of O_(2) , and CO_(2) between the tissues.