A.
Active transport is the energy-requiring process of pumping molecules and ions across membranes "uphill" - against a concentration gradient.
Proteins are unbranched polymers constructed from 22 standard α-amino acids.
The protein show four levels of structural organisation; the primary structure, secondary structure, tertiary structure and quaternary structure.
The structure of proteins are stabilized by peptide bonds between the amino acid and hydrogen bond between the peptide chainds.
The primary structure of a protein is determined by the sequence of amino acids, but secondary and tertiary structures of protein define their natural or native conformation.
The solubility of protein varies according to the pH, ionic strength, nature of solvent, temperature etc.
Proteins can be classified as simple proteins or conjugated proteins on the basis of their composition.
The proteins can also be classified as fibrous proteins or globular proteins on the basis of their shape.
Proteins play a major part in body structure and function as most of the molecules like antibodies, immunoglobulins, hemoglobin, myoglobin ,most of the enzymes are proteins.
So proteins are also called building blocks of the body.
So I’m not sure what your teacher refers to it as, but think snowy regions. It’s very difficult for plant life or bugs to thrive in extremely low temperatures
The genotypes of its gametes would be TS, tS, Ts, and St. This would mean the answer would be C. Hopefully this helps you.
