ASU BIO201 Exam3 Practice Study Guide Complete

ASU BIO201 EXAM3

PRACTICE STUDY GUIDE

COMPLETE

Question 1: Which muscle tissue is typically voluntary and attached to the skeleton?

Choices:

1) Skeletal muscle 2) Cardiac muscle 3) Single-unit smooth muscle 4) Multiunit smooth muscle

Correct Answer: Skeletal muscle

Explanation: Skeletal muscle is generally under voluntary somatic control and usually attaches to bones to produce body movement.Page 1

Question 2: Which muscle tissue contains branching cells joined by intercalated

discs?

Choices:

1) Skeletal muscle 2) Cardiac muscle 3) Visceral smooth muscle 4) Dense regular connective tissue

Correct Answer: Cardiac muscle

Explanation: Cardiac muscle cells are branched and connected by intercalated discs that support coordinated contraction.Question 3: Which muscle tissue lacks striations and is common in the walls of hollow organs?

Choices:

1) Cardiac muscle 2) Skeletal muscle 3) Smooth muscle 4) Elastic connective tissue

Correct Answer: Smooth muscle

Explanation: Smooth muscle is nonstriated and forms much of the muscular wall of hollow organs such as the intestine and bladder.Page 2

Question 4: The central energy-conversion role of muscle is to transform chemical energy in ATP primarily into what?

Choices:

1) Electrical insulation 2) Mechanical work 3) Stored glycogen only 4) Extracellular collagen

Correct Answer: Mechanical work

Explanation: Muscle converts chemical energy from ATP into mechanical force and movement, with heat produced as a by-product.

Question 5: Which is a major function of skeletal muscle besides producing

movement?

Choices:

1) Producing bile 2) Maintaining posture 3) Filtering plasma 4) Synthesizing thyroid hormone

Correct Answer: Maintaining posture

Explanation: Skeletal muscles help stabilize joints and maintain posture through sustained low- level contractions.Page 3