Module 1 Chapters 1-3 Exam Questions with Complete Solutions.

Module 1 Chapters 1-3 Exam Questions with Complete
Solutions.

4 most abundant elements


A. H, O, S, P
B. Na, K, N, S
C. H, C, N, O
D. NA, K, C, N - Correct Answer C


Nearly all proteins contain


A. Selenium
B. Sulfur
C. Cobalt
D. Phosphorus - Correct Answer B


Which of the following statements is FALSE?


A. Proteins are the only biological polymer that can catalyze biochemical reactions
B. Proteins can transmit signals b/w cells
C. Proteins can be structural components of cells
D. Proteins can transport molecules within cells and b/w cells - Correct Answer A


Which of the following statements about biochemicals is TRUE?


A. Nucleic acids (DNA/RNA) are responsible for information storage, transmission, and
expression
B. Proteins are broken down as primary fuel source
C. Carbs are responsible for the catalysis of chem rxns
D. Lipids are responsible for transport of substances into cell - Correct Answer A

, Biochemistry is focused on 4 biological molecules: proteins, carbs, NA, and lipids. Which
can function as polymers?


A. all
B. carbs and proteins
C. proteins, NA, and carbs
D. Na - Correct Answer C


Match biomolecule class w/ example


A. proteins
B. lipids
C. carbs
D. NA


1. triglycerides
2. starch
3. ribozymes
4. Receptors - Correct Answer A:4, B:1, C:2, D3


Homeostasis across a cellular membrane is


A. the ability to maintain cellular conditions over time
B. the same as equilibrium
C. the ability to maintain nutrient concentrations equal on both sides of the cell membrane
D. a function of proteins - Correct Answer A


Surface appendages that allow a bacterium to stick to a surface


A. fimbriae
B. mitochondria