explain positive transport of fluid through plasma membrane
Answers
Answer:
Explanation:Key Points
Substances diffuse according to their concentration gradient; within a system, different substances in the medium will each diffuse at different rates according to their individual gradients.
After a substance has diffused completely through a space, removing its concentration gradient, molecules will still move around in the space, but there will be no net movement of the number of molecules from one area to another, a state known as dynamic equilibrium.
Several factors affect the rate of diffusion of a solute including the mass of the solute, the temperature of the environment, the solvent density, and the distance traveled.
Key Terms
diffusion: The passive movement of a solute across a permeable membrane
concentration gradient: A concentration gradient is present when a membrane separates two different concentrations of molecules.
Answer:
Explanation:
"(i) a structure: a micro villus is usually covered with a plasma which is a membrane.
(ii) constituents: the constituents are those where it is enclosed in. It has cytoplasm and micro filaments.
(iii) microvilli: it comprises of a huge bundle of cross-linked filaments which will be the base of any structure.
(iv) cilia and sperm tail: both the sperm tails and the cilia are the ones examined in an electron microscope from Polynesians. "