$$\text{DNA} \rightarrow \text{RNA} \rightarrow \text{Protein}$$

Acids increase the concentration of $$\text{H}^+ in a $$solution.

Question 1

Which of the following best describes the main function of GLP-1 in the human body?

Accepted Answer

GLP-1 suppresses appetite, stimulates insulin secretion, and slows gastric emptying.

Question 2

Which property of water allows insects to walk on its surface?

Accepted Answer

Cohesion due to hydrogen bonding

Question 3

Which of the following is NOT a requirement for living cells?

Accepted Answer

Ability to photosynthesize

Question 4

Which of the following best explains why ice floats on water?

Accepted Answer

Hydrogen bonds keep water molecules farther apart in ice, making it less dense.

Question 5

Which of the following is a correct sequence for the flow of genetic information in a cell?

Accepted Answer

$$	ext{DNA} ightarrow 	ext{RNA} ightarrow 	ext{Protein}$$

Question 6

Which of the following is an example of negative feedback in biological systems?

Accepted Answer

High blood glucose stimulates insulin secretion, which lowers blood glucose.

Question 7

Which of the following statements about the Miller experiment is correct?

Accepted Answer

It showed that simple molecules could combine to form amino acids under simulated primitive Earth conditions.

Question 8

Which of the following best describes the structure of the cell membrane?

Accepted Answer

A phospholipid bilayer with embedded proteins

Question 9

Which type of chemical bond involves the sharing of electron pairs between atoms?

Accepted Answer

Covalent bond

Question 10

Which of the following is a function of proteins in the cell membrane?

Accepted Answer

Transport of molecules across the membrane

Question 11

Which of the following best describes the difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells have membrane-bound organelles, prokaryotic cells do not.

Question 12

Which of the following is a property of water that helps moderate Earth's climate?

Accepted Answer

High specific heat

Question 13

Which of the following is a correct statement about acids and bases?

Accepted Answer

Acids increase the concentration of $$	ext{H}^+ in a $$solution.

Question 14

Which of the following is a function of the mitochondria in eukaryotic cells?

Accepted Answer

Cellular respiration and ATP production

Question 15

Which of the following best describes the role of ribosomes in the cell?

Accepted Answer

They synthesize proteins using mRNA as a template.

Question 16

Which of the following is a correct pairing of a macromolecule and its monomer?

Accepted Answer

Carbohydrate – glucose

Question 17

Which of the following is a function of the Golgi apparatus?

Accepted Answer

Processing, packaging, and transport of molecules

Question 18

Which of the following best describes the emergent property of life?

Accepted Answer

A cell is alive, but its individual molecules are not.

Question 19

Which of the following is a correct statement about the domains of life?

Accepted Answer

Eukarya includes plants, fungi, animals, and protists.

Question 20

Which of the following best explains why oil does not dissolve in water?

Accepted Answer

Oil is nonpolar and does not interact with polar water molecules.

General Biology: Foundations, Scientific Inquiry, and the Chemical Context of Life

Study Guide - Practice Questions