Question 1

Which of the following best describes the difference between ionic and covalent bonds?

Accepted Answer

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons between atoms.

Question 2

Which property of water allows it to moderate Earth's climate and support life?

Accepted Answer

Its high heat of vaporization and high specific heat capacity

Question 3

A solution has a hydrogen ion concentration of $$[H^+] = 1 	imes 10$$^{-7}$$ M. What is its pH, and is it acidic, basic, or neutral?

Accepted Answer

pH = 7; neutral

Question 4

Which macromolecule is correctly paired with its function?

Accepted Answer

Proteins: catalyze biochemical reactions

Question 5

Which of the following best explains why enzymes are essential for metabolism?

Accepted Answer

They lower the activation energy, allowing reactions to occur more rapidly.

Question 6

Which structure is found in prokaryotic cells but not in eukaryotic cells?

Accepted Answer

Nucleoid region

Question 7

A cell is placed in a solution and water moves into the cell. Which type of solution is the cell in?

Accepted Answer

Hypotonic

Question 8

Which process is responsible for the production of ATP in the mitochondria during aerobic respiration?

Accepted Answer

Oxidative phosphorylation

Question 9

During photosynthesis, what is the main purpose of the Calvin-Benson cycle?

Accepted Answer

To convert carbon dioxide into glucose

Question 10

Which stage of the cell cycle is most directly associated with DNA replication?

Accepted Answer

S phase

Question 11

A woman with genotype $$X^N X^n ($$where $$N is $$normal vision and $$n is $$colorblindness) and a man with genotype $$X^n Y$$ have a child. What is the probability that their son will be colorblind?

Accepted Answer

$$0.25$$

Question 12

Which of the following best describes the structure of DNA?

Accepted Answer

A double-stranded helix with complementary base pairing

Question 13

Which process describes the synthesis of RNA from a DNA template?

Accepted Answer

Transcription

Question 14

Which of the following is an example of a codominant inheritance pattern?

Accepted Answer

A person with type AB blood

Question 15

Which biotechnology technique is used to amplify a specific segment of DNA?

Accepted Answer

Polymerase chain reaction (PCR)

Question 16

Which of the following best explains why evolution is considered an underlying theme in biology?

Accepted Answer

It explains the diversity and unity of life through common ancestry and natural selection.

Question 17

A buffer solution is added to a solution with a pH of 4. What is the main function of the buffer?

Accepted Answer

To minimize changes in pH when acids or bases are added

Question 18

Which of the following is a correct application of Mendel's law of independent assortment?

Accepted Answer

Alleles for different traits segregate independently during gamete formation.

Question 19

Which laboratory technique would you use to determine the pH of an unknown solution?

Accepted Answer

Using a pH meter or pH indicator paper

Question 20

A student observes a cell under a microscope and notes the presence of a cell wall, chloroplasts, and a large central vacuole. What type of cell is being observed?

Accepted Answer

Plant cell

BIO 1210: General Biology I Lecture – Syllabus and Course Overview

Study Guide - Practice Questions

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