Question 1

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

Accepted Answer

Eukaryotic cells have a nucleus, whereas prokaryotic cells lack a nucleus.

Question 2

Which type of chemical bond is primarily responsible for the unique properties of water, such as its high specific heat and surface tension?

Accepted Answer

Hydrogen bonds

Question 3

A patient is given an intravenous solution that is hypertonic compared to their blood plasma. What is the most likely effect on their red blood cells?

Accepted Answer

The red blood cells will shrink as water leaves the cells.

Question 4

Which of the following is a correct formula for calculating the pH of a solution?

Accepted Answer

$$\mathrm{pH} = -\log_{10}[\mathrm{H}^+]$$

Question 5

Which macromolecule is primarily responsible for catalyzing biochemical reactions in living organisms?

Accepted Answer

Proteins

Question 6

A mutation causes a change in the sequence of amino acids in a protein. Which level of protein structure is directly affected by this mutation?

Accepted Answer

Primary structure

Question 7

Which organelle is responsible for producing ATP through oxidative phosphorylation?

Accepted Answer

Mitochondrion

Question 8

During cellular respiration, which molecule acts as the final electron acceptor in the electron transport chain?

Accepted Answer

Oxygen ($$\mathrm{O}_2)$$

Question 9

Which of the following best explains why phospholipids form bilayers in aqueous environments?

Accepted Answer

Phospholipids have hydrophilic heads and hydrophobic tails, causing them to arrange with heads facing water and tails facing inward.

Question 10

A scientist discovers a new organism that is unicellular, lacks a nucleus, and has a cell wall. To which domain does this organism most likely belong?

Accepted Answer

Bacteria

Question 11

Which of the following processes directly requires the hydrolysis of ATP?

Accepted Answer

Active transport

Question 12

Which of the following statements about enzymes is correct?

Accepted Answer

Enzymes lower the activation energy required for reactions to occur.

Question 13

Which of the following is the correct complementary base pairing in DNA?

Accepted Answer

Adenine pairs with thymine, guanine pairs with cytosine.

Question 14

A cell is placed in a solution and water moves into the cell, causing it to swell. What type of solution is the cell in?

Accepted Answer

Hypotonic

Question 15

Which of the following is a function of the rough endoplasmic reticulum?

Accepted Answer

Protein synthesis

Question 16

Which equation correctly represents the process of photosynthesis?

Accepted Answer

$$6\mathrm{CO}_2 + 6\mathrm{H}_2\mathrm{O} \rightarrow \mathrm{C}_6\mathrm{H}_{12}\mathrm{O}_6 + 6\mathrm{O}_2$$

Question 17

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

Accepted Answer

Ribosomes synthesize proteins.

Question 18

A genetic disorder results in the inability to break down fatty acids in the cell. Which organelle is most likely defective?

Accepted Answer

Peroxisome

Question 19

Which of the following is true about the fluid mosaic model of the cell membrane?

Accepted Answer

Proteins and phospholipids can move laterally within the membrane.

Question 20

Which process is responsible for the movement of water across a semipermeable membrane from an area of low solute concentration to high solute concentration?

Accepted Answer

Osmosis

General Biology I: Comprehensive Final Exam Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards