$$\frac{125}{125+425} \times 100 = 22\%$$

$$\frac{0.250\ \mathrm{g}}{365\ \mathrm{g/mol}} = 6.8 \times 10$$^{-4}$$\ \mathrm{mol}$$

Question 1

Which of the following statements about ATP is correct?

Accepted Answer

ATP is an inhibitor of the enzyme phosphofructokinase involved in glycolysis.

Question 2

Which of the following is the strongest intermolecular force between two molecules of methanol, CH$$_3OH$$?

Accepted Answer

Hydrogen bonding

Question 3

A solution is prepared by mixing 125 g of glucose with 425 g of water. What is the mass percent concentration (w/w) of glucose in the solution?

Accepted Answer

$$\frac{125}{125+425} 	imes 100 = 22\%$$

Question 4

Which transformation in glycolysis does NOT result in a substrate level phosphorylation?

Accepted Answer

Glucose $$\rightarrow$$ glucose-6-phosphate

Question 5

Which of the following is a correct statement about osmosis?

Accepted Answer

Osmosis is the flow of solvent molecules across a semipermeable membrane.

Question 6

Given the following equilibrium: $$\mathrm{Ni(s) + 3 O_2$(g) \rightleftharpoons 2 NiO(s)}$$, what would cause the system to shift to the right?

Accepted Answer

Addition of extra $$\mathrm{O_2$}$$

Question 7

Which of the following molecules is most likely to be soluble in hexane, C$$_6H$_{14}$$?

Accepted Answer

Vegetable oil

Question 8

A patient is given 250 mg of amoxicillin in a tablet. How many moles of amoxicillin are in the tablet? (Molar mass of amoxicillin = 365 g/mol)

Accepted Answer

$$\frac{0.250\ \mathrm{g}}{365\ \mathrm{g/mol}} = 6.8 	imes 10$$^{-4}$$\ \mathrm{mol}$$

Question 9

Which statement is true concerning the induced fit model of enzyme-substrate complex formation?

Accepted Answer

The active site of the enzyme changes shape upon substrate binding.

Question 10

Which of the following is the correct IUPAC name for the compound with the structure below?

(CH$$_3$$)$$_2$$CHCH$$_2CH$_2CH$_3$$

Accepted Answer

2-methylpentane

Question 11

Which of the following statements about the oxidation of alcohols and aldehydes is most accurate?

Accepted Answer

Primary alcohols are oxidized to aldehydes.

Question 12

Which of the following is a product of the reaction: $$\mathrm{CH_3CH_2OH + CH_3COOH \xrightarrow{H^+}}$$ ?

Accepted Answer

Ethyl acetate

Question 13

Which of the following is a correct statement about the tertiary structure of proteins?

Accepted Answer

Hydrophobic interactions help maintain the tertiary structure.

Question 14

Which of the following is the correct Haworth structure for the $$\beta-$$anomer of D-glucose?

Accepted Answer

The structure with the -OH group on C1 above the plane of the ring

Question 15

Which of the following is the major product of the reaction: $$\mathrm{CH_3CH_2CH_2Br + NaOH \rightarrow}$$ ?

Accepted Answer

1-Propanol

Question 16

Which of the following is a correct statement about amphipathic molecules?

Accepted Answer

They contain both hydrophilic and hydrophobic regions.

Question 17

Which of the following is the correct balanced equation for the formation of nitrogen oxide?
$$\mathrm{N_2$(g) + O_2$(g) \rightarrow 2 NO(g)}$$

Accepted Answer

The formation of NO is an endothermic reaction.

Question 18

Which of the following is the correct electron configuration for an element with atomic number 8?

Accepted Answer

$$1s^2$$\ $$2s^2$$\ $$2p^4$$

Question 19

Which of the following molecules is likely to be nonpolar?

Accepted Answer

CO$$_2$$

Comprehensive Study Guide: GOB Chemistry Final Exam Topics

Study Guide - Practice Questions