Question 1

Photosynthesis involves capturing energy from light that is then used to drive the formation of carbohydrates from carbon dioxide and water.

Accepted Answer

A) True 
 B)False

Question 2

ATP contains both phosphoester and phosphoanhydride linkages.

Accepted Answer

A) True 
 B)False

Question 3

Lysozyme is an enzyme with a cleft or depression at its active site.

Accepted Answer

A) True 
 B)False

Question 4

Mitochondria are the main sites of energy transduction in aerobic eukaryotic cells.

Accepted Answer

A) True 
 B)False

Question 5

The process of cell division that occurs in the tissues is called mitosis.

Accepted Answer

A) True 
 B)False

Question 6

The mitotic spindles are formed from microtubule proteins.

Accepted Answer

A) True 
 B)False

Question 7

Proteins in biological membranes may be

Accepted Answer

A)  porous. 
B)  attached to the membrane surface. 
C)  span the membrane. 
D)  All of the above 
E)  B and C only 
A)  porous. 
B)  attached to the membrane surface. 
C)  span the membrane. 
D)  All of the above 
E)  B and C only

Question 8

The filament fibers in the cytoskeleton are composed primarily of carbohydrate molecules.

Accepted Answer

A) True 
 B)False

Question 9

The mitochondria and Golgi apparatus are two organelles which originated from bacteria and were incorporated into eukaryotic cells via symbiosis.

Accepted Answer

A) True 
 B)False

Question 10

Biochemists describing the molecular weight of a protein really mean the atomic weight in grams.

Accepted Answer

A) True 
 B)False

Question 11

In an animal cell, DNA can be found only in the nucleus.

Accepted Answer

A) True 
 B)False

Question 12

A phosphate ester contains a phosphate functional group.

Accepted Answer

A) True 
 B)False

Question 13

Eukaryotes include plants, animals and bacteria.

Accepted Answer

A) True 
 B)False

Question 14

Removal of water from residues of a macromolecule results in the formation of that macromolecule.

Accepted Answer

A) True 
 B)False

Question 15

Which elements account for more than 97% of the weight of most organisms?

Accepted Answer

A)  C, H, N, Mg, O, S 
B)  C, H, N, O, P, S 
C)  C, H, N 
D)  Fe, C, H, O, P 
E)  Ca2+, K+, Na+, Mg2+, Cl- 
A)  C, H, N, Mg, O, S 
B)  C, H, N, O, P, S 
C)  C, H, N 
D)  Fe, C, H, O, P 
E)  Ca2+, K+, Na+, Mg2+, Cl-

Question 16

The conformation of a protein enzyme determines whether it is functional or not.

Accepted Answer

A) True 
 B)False

Question 17

Which statement is true about a reaction with an equilibrium constant, Keq, equal to 1000?

Accepted Answer

A)  The forward rate constant is 1000 times greater than the reverse rate constant. 
B)  The forward rate constant is 3 times greater than reverse rate constant. 
C)  The forward rate constant is 1000 times smaller than the reverse rate constant. 
D)  The forward rate constant is 3 times smaller than the reverse rate constant. 
E)  There is not enough information given to compare the forward and reverse rate constants. 
A)  The forward rate constant is 1000 times greater than the reverse rate constant. 
B)  The forward rate constant is 3 times greater than reverse rate constant. 
C)  The forward rate constant is 1000 times smaller than the reverse rate constant. 
D)  The forward rate constant is 3 times smaller than the reverse rate constant. 
E)  There is not enough information given to compare the forward and reverse rate constants.

Question 18

The Golgi apparatus consists of flattened, fluid-filled, membranous sacs and is responsible for chemical modification and sorting of some biomolecules.

Accepted Answer

A) True 
 B)False

Question 19

In eukaryotic cells lysosomes are specialized digestive vesicles with a highly acidic interior.

Accepted Answer

A) True 
 B)False

Question 20

Absolute zero is equal to 0 °C.

Accepted Answer

A) True 
 B)False

Exam 1: Introduction to Biochemistry

Photosynthesis involves capturing energy from light that is then used to drive the formation of carbohydrates from carbon dioxide and water.

ATP contains both phosphoester and phosphoanhydride linkages.

Lysozyme is an enzyme with a cleft or depression at its active site.

Mitochondria are the main sites of energy transduction in aerobic eukaryotic cells.

The process of cell division that occurs in the tissues is called mitosis.

The mitotic spindles are formed from microtubule proteins.

Proteins in biological membranes may be

The filament fibers in the cytoskeleton are composed primarily of carbohydrate molecules.

The mitochondria and Golgi apparatus are two organelles which originated from bacteria and were incorporated into eukaryotic cells via symbiosis.

Biochemists describing the molecular weight of a protein really mean the atomic weight in grams.

In an animal cell, DNA can be found only in the nucleus.

A phosphate ester contains a phosphate functional group.

Eukaryotes include plants, animals and bacteria.

Removal of water from residues of a macromolecule results in the formation of that macromolecule.

Which elements account for more than 97% of the weight of most organisms?

The conformation of a protein enzyme determines whether it is functional or not.

Which statement is true about a reaction with an equilibrium constant, Keq, equal to 1000?

The Golgi apparatus consists of flattened, fluid-filled, membranous sacs and is responsible for chemical modification and sorting of some biomolecules.

In eukaryotic cells lysosomes are specialized digestive vesicles with a highly acidic interior.

Absolute zero is equal to 0 °C.

Water

Amino Acids and the Primary Structures of Proteins

Proteins: Three-Dimensional Structure and Function

Properties of Enzymes

Mechanisms of Enzymes

Coenzymes and Vitamins

Carbohydrates

Lipids and Membranes

Introduction to Metabolism

Glycolysis

Gluconeogenesis, the Pentose Phosphate Pathway, and Glycogen Metabolism

The Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Photosynthesis

Lipid Metabolism

Amino Acid Metabolism

Nucleotide Metabolism

Nucleic Acids

Dna Replication, Repair, and Recombination

Transcription and Rna Processing

Protein Synthesis

Recombinant Dna Technology

Filters

Which statement is true about a reaction with an equilibrium constant, K_eq, equal to 1000?