Any help with explanation please Question 6 (1 point Match the protein structure

Question

Any help with explanation please

Question 6 (1 point Match the protein structure level with the bonds that are used to establish it. Keep in mind each level of itructure may have more than ene. Bonds are covalent ionic hydrogen bond, disuisde bridge and Van der Walls interactions Covalent bonds only 1 Primary covalent, ionic hydrogen bonds, disulfide bridges. T van der walls interaction covalent and hydrogen bondi Which types of amino acids are most Ukely to interact with the fatty acids of phospholipids? polar changed nonpolar aromatic Question 8 (1 point) Which ofthe folowing does not require energy in the form of ATP? coupled transporter antiporter sodium potassium pumps

Explanation / Answer

Question 6: Answering this question requires the understanding of amino acids, formation of proteins chain and folding patterns in the proteins structures.

Amino acids are like bids that joins in a string one by one and thereby forms an protein chain, so making this structure step by step requires the binding between the molecules. We have seen in the joining of all these molecules there are certain attraction and forces of bonds works that tightly of loosely binds the molecule with each other.

Now matching the options with right choices-

1. Primary structure: linear sequence of amino acids in the polypeptide chain- only Covalent bonds functions here,

2. Secondary structure: When the primary structures are folded together to form a second level of chains organized into regular structures known as alpha-helices or beta-pleated sheets. Here the Covalent bonds along with Hydrogen bonds works.

3. The tertiary structure: The three dimensional shape of a protein. Here bonds could be ionic, covalent, hydrogen, disulfide bridges, Van der walls interactions.

Question 7: We have to know the Nature of Fatty acids of phospholipids. They forms lipid bilayers in cells plasma membrane. They are hydrophobic fatty acid "tails" which are "Hydrophobic" in nature, so the type of amino acids binding to them have to be opposite characters.

Now from the options we can choose: Polar and charged amino acids are likely to interact, as we have seen in case of phospholipid formation we have a polar head of phosphate ans it is charged, so we do have to choose such amino acids here.

Question 8: Energy in form of ATP requires when we to transfer something actively, like in case of cell matrix and cell periphery, if we need to take u some molecule we could spent ATP energy. Also we need to remember cells even make proton gradients to form an ionic imbalance that drives some molecule to pass through a cell interior or out.

From the options we need to choose Facilitated diffusion, here the spontaneous passive transport of molecules or ions across a cell's membrane occurs, cells specific transmembrane integral proteins helps doing this.

Question 9: In general shape of an macromolecular structure is determined by many factors, the first option as protein-protein interaction only applies to proteins but not to other macromolecules.

There are carbohydrates, Proteins and Nucleic acids, from here we can say that in general they all are shaped by Free Energy Basins or minimizing the free energy drives their shapes; pH and Temperature this physical characters also influences, like temperature changes the shape of any macromolecule, by denaturing or renaturing them. So here we will pick up two answers: Minimizing free energy that restricts the bond rotations and the Temperature.

Question 10. equilibrum suggests the equality, so even the presence of the membrane between the tube will not affect it. As water molecules can pass through it, so there will be equal amount of watermoles in the tube, both the side.

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