Biochemistry 4th Edition Test Bank

Biochemistry 4th Edition Test BankMultiple Choice Questions 1) The synthesis of which molecule is considered by many to be the root of biochemistry since it was the first synthesis of a biological molecule from non-biological precursors? A) DNA B) urea C) glucose D) glycine E) adenosine triphosphate (ATP) Answer: B Difficulty: 1 Topic: The Roots of Biochemistry 2) Prior to 1926, the source of biological catalysis was postulated to be possessed by “ferments” which today are called _______. A) proteins B) nucleic acids C) enzymes D) polysaccharides E) membranes Answer: C Difficulty: 1 Topic: The Roots of Biochemistry 3) Originally, nucleic acids were thought to serve what role within a cell? A) catalysts B) genetic C) structural D) buffer E) none of the above A+ Answer: C Difficulty: 1 Topic: The Roots of Biochemistry 4) Which of the following organelles is found in plant cells, but not in animal cells A) chloroplast B) Golgi apparatus C) mitochondrion D) smooth endoplasmic reticulum E) rough endoplasmic reticulum Answer: A Difficulty: 1 Topic: The Roots of Biochemistry 5) Which of the following elements is considered a second tier biochemical element meaning that it is less abundant than first tier elements but still required for life in all organisms? A) H B) N C) P D) C E) O Answer: C Difficulty: 1 Topic: Biochemistry as a Chemical Science 6) Which of the following is a polymer derived from glucose? A) cellulose B) ribonucleic acid C) polypeptide D) deoxyribonucleic acid E) none of the above Answer: A Difficulty: 1 Topic: Biochemistry as a Chemical Science 7) Which of the following macromolecules is considered a homopolymer?