Question

1. What are the factors affecting the rate of diffusion?
2. What are porins? What role do they play in diffusion?
3. Describe the role played by protein numns duri​

Answer 1

Answer:

1.)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.

2.)Porins are proteins lined hydrophilic channels present in the outer membrane of plastids, mitochondria and some bacteria. They allow passage of large biomolecules, even small sized proteins as per diffusion gradient.

3.)The process of active transport involves specific protein pumps. The protein pumps are made up of specific proteins called trans-membrane proteins. These pumps first make a complex with the substance to be transported across the membrane, using the energy derived from ATP.

hope it helps you.......

Answer 2

Answer:

HEY AM HERE TO HELP YOU OUT IF YOU WANT TO MARK ME AS BRAINLIEST THEN DON'T STEP BACK

Explanation:

1. 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.

2. Porins are proteins lined hydrophilic channels present in the outer membrane of plastids, mitochondria and some bacteria. They allow passage of large biomolecules, even small sized proteins as per diffusion gradient.

3. n plant cells, active transport occurs against the concentration gradient, i.e., from a region of lower concentration to a region of higher concentration. The process of active transport involves specific protein pumps. The protein pumps are made up of specific proteins called trans-membrane proteins. These pumps first make a complex with the substance to be transported across the membrane, using the energy derived from ATP. The substance finally gets liberated into the cytoplasm as a result of the dissociation of the protein–substance complex.