Chapter 03 Principles of Anatomy & Physiology 14th edition by Gerard J Tortora

Chapter 03 Principles of Anatomy & Physiology 14th edition by Gerard J Tortora

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

1) What are the three main parts of a eukaryotic cell?

1. a) plasma membrane, organelles, cytoplasm
2. b) plasma membrane, organelles, nucleus
3. c) plasma membrane, cytoplasm, organelles
4. d) plasma membrane, cytoplasm, nucleus
5. e) plasma membrane, cytosol, organelles

Answer: d

Difficulty: Medium

Study Objective 1: SO 3.1 Name and describe the three main parts of a cell.

Section Reference 1: Sec 3.1 Parts of a Cell

Question type: Essay

2) Briefly describe the fluid mosaic model.

Answer:

Difficulty: Medium

Study Objective 1: SO 3.2 Describe the structure and functions of the plasma membrane.

Section Reference 1: Sec 3.2 The Plasma Membrane

Solution: The fluid mosaic model states that the molecular arrangement of the plasma membrane resembles an ever-moving sea of fluid lipids containing a mosaic of many different proteins.

Question type: Multiple Choice

3) The three main components of the lipid bilayer portion of a plasma membrane are

1. a) phospholipids, glycoproteins, and water.
2. b) proteins, cholesterol, and fatty acids.
3. c) cholesterol, triglycerides, and glycolipids.
4. d) phospholipids, cholesterol, and glycolipids.
5. e) phospholipids, cholesterol, and proteins.

Answer: d

Difficulty: Medium

Study Objective 1: SO 3.2 Describe the structure and functions of the plasma membrane.

Study Objective 2: SO 3.2.2 Explain the concept of selective permeability.

Section Reference 1: Sec 3.2 The Plasma Membrane

4) What are the nonpolar parts of phospholipids?

1. a) phosphate-containing head groups
2. b) fatty acid tail groups
3. c) Both the head and tail groups are nonpolar.
4. d) Neither the head nor tail groups are nonpolar.

Answer: b

Difficulty: Medium

Study Objective 1: SO 3.2 Describe the structure and functions of the plasma membrane.

Study Objective 2: SO 3.2.2 Explain the concept of selective permeability.

Section Reference 1: Sec 3.2 The Plasma Membrane

5) The polar portion of a cholesterol molecule, which forms hydrogen bonds with the polar heads of neighboring phospholipids and glycolipids, consists of a

1. a) –OH group.
2. b) –CH₃
3. c) –CH₄ group
4. d) –COOH group
5. e) None of these choices is correct.

Answer: a

Difficulty: Hard

Study Objective 1: SO 3.2 Describe the structure and functions of the plasma membrane.

Study Objective 2: SO 3.2.2 Explain the concept of selective permeability.

Section Reference 1: Sec 3.2 The Plasma Membrane