Which Of The Following Accurately Describes The Structure Of Dna

Question: Which of the following best describes the structure of DNA?

Answer: A double helix consisting of two sugar-phosphate backbones with nucleobases oriented towards the interior.

Question: Which of the following correctly describes the pairing and hydrogen bonding of nucleobases in DNA?

Answer: Adenine pairs with thymine via two hydrogen bonds; cytosine pairs with guanine via three hydrogen bonds.

Question: Fructose is Carbohydrate that belongs to the group

Answer: Monosaccharide

Question: Lactose is a Carbohydrate that belongs to the group

Answer: Disaccharide

Question: Cellulose is a Carbohydrate that belongs to the group

Answer: Polysaccharide

Question: What type of bond holds together adjacent amino acids in a protein, thereby maintaining the protein’s primary structure?

Answer: Peptide Bonds

Question: Alpha helices and beta-pleated sheets are examples of what level of protein structure?

Answer: Secondary

Question: Disulfide bonds are important in maintaining what level of structure in proteins?

Answer: Tertiary

Question: Which type of macromolecule is involved in catalyzing reactions, transporting molecules, motility, maintaining cell framework, sensing and responding to external stimuli, and regulating gene expression?

Answer: Proteins

Question: A glycoprotein is an example of a _______ protein. This is a protein that has ____________.

Answer: substituted; other molecules covalently bonded to the side chains of some of the amino acids