Question 1

Which of the following is NOT a characteristic that distinguishes living organisms from non-living things?

Accepted Answer

Ability to rust when exposed to oxygen

Question 2

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

Accepted Answer

Eukaryotic cells are generally larger and contain a nucleus, while prokaryotic cells lack a nucleus.

Question 3

A scientist observes a cell with a rigid cell wall, chloroplasts, and a large central vacuole. Which type of cell is being observed?

Accepted Answer

Plant cell

Question 4

Which organelle is responsible for producing ATP through aerobic cellular respiration in eukaryotic cells?

Accepted Answer

Mitochondrion

Question 5

Which of the following best describes the difference between hydrolysis and dehydration synthesis?

Accepted Answer

Hydrolysis breaks down macromolecules by adding water, while dehydration synthesis builds them by removing water.

Question 6

A patient is diagnosed with Type 1 diabetes. Which of the following best explains the underlying cause?

Accepted Answer

The patient's pancreas does not produce enough insulin due to immune system malfunction.

Question 7

Which of the following is a correct sequence of the structural hierarchy in the human body, from smallest to largest?

Accepted Answer

Cell → Tissue → Organ → Organ system → Organism

Question 8

Which of the following best explains why viruses are not considered living organisms?

Accepted Answer

They cannot reproduce independently or carry out metabolism outside a host cell.

Question 9

Which process is responsible for the transfer of genetic material between two bacterial cells via a sex pilus?

Accepted Answer

Conjugation

Question 10

Which of the following best describes the role of B cells in the immune system?

Accepted Answer

They produce antibodies that target specific pathogens.

Question 11

A scientist is using PCR and a thermal cycler to analyze DNA from a crime scene. What is the main purpose of this process?

Accepted Answer

To amplify small amounts of DNA for further analysis

Question 12

Which of the following is a correct description of the flow of energy and cycling of chemicals in an ecosystem?

Accepted Answer

Energy flows through the ecosystem, while chemicals cycle within it.

Question 13

Which of the following is a distinguishing feature of angiosperms compared to other plant groups?

Accepted Answer

They have flowers and produce seeds enclosed in fruit.

Question 14

Which of the following best describes the difference between saturated and unsaturated fats?

Accepted Answer

Unsaturated fats are generally considered healthier than saturated fats.

Question 15

Which of the following is NOT a function of lipids in the human body?

Accepted Answer

Carrying oxygen in the blood

Question 16

Which of the following best explains why males are more likely to be affected by X-linked genetic disorders?

Accepted Answer

Males have only one X chromosome, so a single recessive allele will cause the disorder.

Question 17

Which of the following is the correct order of taxonomic classification from most broad to most specific?

Accepted Answer

Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

Question 18

Which of the following is a real-world example of artificial selection?

Accepted Answer

Dog breeding to enhance specific traits

Question 19

Which of the following best describes the process of DNA replication?

Accepted Answer

It is semi-conservative, with each new DNA molecule containing one original and one new strand.

Question 20

Which of the following is a major reason for the modern-day decline in biodiversity?

Accepted Answer

Habitat destruction

Comprehensive Biology Final Exam Study Guide

Study Guide - Practice Questions