Certain integral membrane proteins facilitate the passage of water across the cell membrane. These proteins are known as aquaporins and are crucial for maintaining cellular water balance. Which of the following is NOT a characteristic of aquaporin-mediated water transport?

Choose the correct statements

I. Passive cells are larger in size

II. Larger cells have lower surface volume ratio

III. To remain active, larger cells are either cylindrical in shape or possess several extensions of the cell membrane, like microvilli

IV. Microvilli are found in all those cells, which are active in absorption

V. Microvilli (membrane infoldings) occurs in transfer cells found in plants in the region of absorption or secretion of nutrients

Option containing all correct statements is

According to Singer and Nicolson model of cell membrane

I. It is the extension of plasma membrane into the cytoplasm

II. It helps in cell wall formation, DNA replication, respiration, secretion processes, increases the surface area of plasma membrane and enzymatic contents. It also helps in cytokinesis

III. It I the characteristic of bacterial cells

The above features are attributed to bacteria

In facilitated diffusion, molecules move across the membrane with the help of:

Which type of molecule can easily pass through the cell membrane without assistance?

Certain integral membrane proteins facilitate the passage of water across the cell membrane. These proteins are known as aquaporins and are crucial for maintaining cellular water balance. Which of the following is NOT a characteristic of aquaporin-mediated water transport?

Cell membrane in animals is composed mainly of the molecules of?

The fluidity of membranes in a plant in cold weather may be maintained by

Most common type of lipids found in plasma membrane is A and they show B__ movement with in the plasma membrane. Choose the most appropriate option to fill A and B.

The fluidity of the cell membrane is primarily influenced by the: