Question 1

Which of the following best describes the hierarchy of living organisms from smallest to largest?

Accepted Answer

Molecule → Cell → Tissue → Organ → Organism

Question 2

Which organelle is responsible for producing most of the cell’s ATP during the electron transport chain?

Accepted Answer

Mitochondrion

Question 3

A molecule of water (H$$_2O) is $$considered polar because:

Accepted Answer

Oxygen is more electronegative than hydrogen, creating a partial negative charge near oxygen

Question 4

Which of the following statements about the plasma membrane is correct?

Accepted Answer

It is a phospholipid bilayer with embedded proteins

Question 5

Which type of microscopy would be most appropriate to view the detailed internal structure of a mitochondrion?

Accepted Answer

Transmission electron microscopy

Question 6

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

Accepted Answer

Modifying, sorting, and packaging proteins

Question 7

Which of the following best describes the process of diffusion?

Accepted Answer

Movement of molecules from an area of high concentration to low concentration without energy input

Question 8

Which of the following elements is NOT among the four most abundant in the human body?

Accepted Answer

Iron

Question 9

What is the main purpose of glycolysis in cellular respiration?

Accepted Answer

To break down glucose into pyruvate and generate ATP

Question 10

Which of the following best describes an isotonic solution and its effect on animal cells?

Accepted Answer

It maintains cell size because water moves in and out at equal rates

Question 11

Which of the following is a characteristic shared by all living things but not by nonliving things?

Accepted Answer

Ability to reproduce

Question 12

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

Accepted Answer

Covalent bond

Question 13

Which of the following best explains why DNA is important for living organisms?

Accepted Answer

It stores genetic information necessary for inheritance

Question 14

Which of the following is true about active transport across the plasma membrane?

Accepted Answer

It requires energy in the form of ATP

Question 15

Which protein complex in the electron transport chain is responsible for synthesizing ATP?

Accepted Answer

ATP synthase

Question 16

Which of the following best describes homeostasis?

Accepted Answer

The process by which organisms maintain a stable internal environment

Question 17

Which connective tissue type is found in tendons and ligaments?

Accepted Answer

Dense regular connective tissue

Question 18

Which type of muscle is found in the stomach?

Accepted Answer

Smooth muscle

Question 19

Which of the following best describes the difference between an element and a molecule?

Accepted Answer

An element is a substance made of only one type of atom, while a molecule is made of two or more atoms bonded together

Question 20

Radioisotope technology is important in medicine because:

Accepted Answer

It can be used to diagnose and treat diseases by tracking radioactive tracers

BIOS 110 Exam 1 Ch.1-4 Human Biology Study Guide: Step-by-Step Guidance

Study Guide - Practice Questions