43. What are trans fatty acids?hoo A. A fatty acid with no double bonds between

Question

43. What are trans fatty acids?hoo A. A fatty acid with no double bonds between carbons B. A fatty acid attached to a phosphate group C. A fatty acid with a carboxyl group D. An unsaturated fatty acid with no bend in the molecule 44. What is ATP used for? A. Catalyze biochemical reactions C. Heredity B. Energy D. Waterproofing 45. Which of the following is not a lipid? A. Steroid B. Triglyceride C. Cellulose D. Wax 46. What is the primary structure of a protein? A. The spatial configuration of a protein C. The amino acid sequence of a protein B. The way the protein is folded D. The arrangement of polypeptides in a protein 39. What is the function of a triglyceride? A. Support B. Energy storage C. Metabolism D. Transport 48. What is a mutation? A. A permanent change in the nucleotide sequence in an RNA molecule B. A change in protein shape so that it can no longer function C. A permanent change in the nucleotide sequence in a DNA molecule D. Breaking down an ATP molecule into ADP and P 49. What are two different types of nucleic acids? A. DNA and RNA C. Protein and carbohydrate B. DNA and protein D. Sugar and starch 50. Which of the following is not a class of biomolecule? A. Hydrocarbon 8. Carbohydrate C.Lipid D. Nucleic acid

Explanation / Answer

Answer:

43). D. An unsaturated fatty acid with no bend in the molecule

Explanation: Each cis carbon-to-carbon double bond in an unsaturated fatty acid produces a pronounced bend in the molecule, so that these molecules do not stack neatly.

44). A. Energy

45). C. Cellulose

Explanation: Cellulose is a polysaccharide.

46). C. The amino acid sequence of a protein

Explanation: Amino acids are arranged in a sequence by peptide bonds. This linear arrangement of amino acids is calle primary structure of protein.

39). B. Energy storage

Explanation: riglycerides provide your body with energy, but their main function is to store energy for later use.

48). C. Apermanat change in the nucleotide sequence in a DNA molecule

Explanation:

A mutation is the permanent alteration of the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA or other genetic elements.

49). A. DNA and RNA

Explanation:

DNA= Deoxyribonucleic acid

RNA = Ribonucleic acid

50). A. Hydrocarbon

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