APHY 101 Midterm Exam Actual

APHY 101 Midterm Exam | / Actual Exam – 185 Verified Questions and Correct Answers​ Real Exam-Based Questions and Verified Answers | 100% Accuracy | Graded A+ | Ivy Tech Community College – Anatomy & Physiology I

Introduction​ This complete study set includes 185 verified multiple-choice questions and correct answers based on the most current APHY 101 Midterm Exam used at Ivy Tech Community College (Indianapolis). Topics cover essential concepts in human anatomy and physiology, including cell structure, tissues, skeletal, muscular, and nervous systems—carefully designed for the / academic year.Answer Format​ All correct answers are clearly marked in bold and green for efficient review and confident preparation.

APHY 101 Midterm Exam | / Verified Q&A | 185 Questions | Graded A+ | Master Anatomy & Physiology I with Confidence Question 1​ What is the basic structural and functional unit of all living organisms?​

• Organ​
• Tissue​

C) Cell​

• Molecule​

Rationale: The cell is the smallest unit that can carry out life processes.

Question 2​ Which organelle is known as the "powerhouse" of the cell?​

• Nucleus​
• Ribosome​

C) Mitochondrion​

• Endoplasmic reticulum​

Rationale: Mitochondria produce ATP, the cell's energy currency.

Question 3​ What is the primary function of the cell membrane?​ 1 / 4

• Protein synthesis​

B) Regulating what enters and leaves the cell​

• DNA storage​
• Energy production​

Rationale: The cell membrane controls substance exchange.

Question 4​ Which type of tissue covers body surfaces and lines cavities?​

• Muscle​
• Connective​

C) Epithelial​

• Nervous​

Rationale: Epithelial tissue provides protection and lining.

Question 5​ What is the main component of the extracellular matrix in connective tissue?​

• Collagen​

B) Ground substance and fibers​

• Cytoplasm​
• Nucleus​

Rationale: Ground substance and fibers support connective tissue.

Question 6​ Which bone is part of the axial skeleton?​

• Femur​

B) Vertebra​

• Radius​
• Ulna​

Rationale: The axial skeleton includes the vertebral column.

Question 7​ What type of joint allows for the widest range of motion?​

• Hinge​

B) Ball-and-socket​

• Pivot​
• Suture​

Rationale: Ball-and-socket joints, like the shoulder, allow multi-axis movement.Question 8​ Which mineral is essential for bone strength?​

• Sodium​

B) Calcium​

• Potassium​
• Magnesium​

Rationale: Calcium is a key component of bone matrix. 2 / 4

Question 9​ What is the primary function of skeletal muscle?​

• Pumping blood​

B) Voluntary movement​

• Conducting nerve impulses​
• Producing hormones​

Rationale: Skeletal muscle enables voluntary body movements.

Question 10​ Which protein is responsible for muscle contraction?​

• Actin​

B) Myosin​

• Keratin​
• Collagen​

Rationale: Myosin interacts with actin to cause contraction.

Question 11​ What is the role of the sarcoplasmic reticulum in muscle cells?​

• Energy production​

B) Storing and releasing calcium ions​

• Protein synthesis​
• Lipid storage​

Rationale: Calcium release triggers muscle contraction.

Question 12​ Which part of the nervous system controls voluntary movements?​

• Autonomic nervous system​

B) Somatic nervous system​

• Enteric nervous system​
• Parasympathetic nervous system​

Rationale: The somatic system governs voluntary actions.

Question 13​ What is the basic functional unit of the nervous system?​

• Neuron​

B) Neuron​

• Axon​
• Dendrite​

Rationale: Neurons transmit nerve impulses.

Question 14​ Which part of a neuron receives signals?​

• Axon​

B) Dendrite​

• Cell body​
• Myelin sheath​

Rationale: Dendrites receive incoming signals. 3 / 4

Question 15​ What is the function of the myelin sheath?​

• Generates nerve impulses​

B) Insulates and speeds up signal transmission​

• Stores nutrients​
• Produces energy​

Rationale: Myelin enhances nerve conduction speed.

Question 16​ Which hormone regulates calcium levels in the blood?​

• Insulin​

B) Parathyroid hormone​

• Cortisol​
• Adrenaline​

Rationale: Parathyroid hormone increases blood calcium.

Question 17​ What is the primary source of energy for cells?​

• Protein​

B) Glucose​

• Fat​
• Amino acids​

Rationale: Glucose is metabolized into ATP.

Question 18​ Which organelle contains digestive enzymes?​

• Mitochondrion​

B) Lysosome​

• Golgi apparatus​
• Nucleolus​

Rationale: Lysosomes break down waste materials.

Question 19​ What is the function of the Golgi apparatus?​

• Energy production​

B) Modifying and packaging proteins​

• DNA replication​
• Lipid synthesis​

Rationale: The Golgi processes and ships proteins.

Question 20​ Which type of muscle is found in the walls of blood vessels?​

• Skeletal​

B) Smooth​

• Cardiac​
• Voluntary​

Rationale: Smooth muscle controls vessel diameter.

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