exam 1

Which of the following are election carriers?

• ATP

• NADP

• NADPH

• Electrons

• FADH2

DNA differs from RNA by having a hydroxyl at the ___ position of the ___.

• 1', sugar

• 2', sugar

• 3', sugar

• 1', nitrogenous base

• 2', nitrogenous base

When a molecule is reduced in cellular metabolism

• it gains electrons

• it requires an input of energy

• it will contain more energy

• All of the above

During the metabolic reactions that completely oxidize glucose to carbon dioxide, ATP is generated when an enzyme transfers a phosphate to ADP

• cellular respiration

• fermentation

• substrate-level phosphorylation

• electron transport chain

• oxidative phosphorylation

dideoxynucleotides are used in DNA sequencing

• to allow DNA polymerase to extend the chain

• they provide a tag to identify the newly synthesized strand

• they cut the DNA template wherever they are incorporated

• they lack a hydroxyl to connect the subsequent nucleotide in the chain

• because they are toxic to DNA

The enzyme that synthesizes DNA using an RNA template is called

• DNA polymerase

• RNA polymerase

• reverse transcriptase

• ribozymes

The bacterial genome is located in a portion of the cell called the

• nucleus

• nucleoid

• nucleolus

• nucleoplasma

GFP is used to study cells because of its natural fluorescence . Experiments using GFP

• can only be done in prokaryotes

• improve resolution by 100 folds because of the wavelength of the fluorescence

• introduce the gene into the cell using recombinant DNA technology

• use it to directly stain the cell

RNA is synthesized by a process called

• transcription

• translation

• replication

• reverse transcriptase

Which of the following is the strongest bond/interaction?

• hydrogen bond

• hydrophobic interactions

• Van der Waal forces

• ionic bonds

• they're all the same