Physiology Prelim Review

Physiology Prelim Review

University

90 Qs

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Physiology Prelim Review

Physiology Prelim Review

Assessment

Quiz

Other

University

Practice Problem

Hard

Created by

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90 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following best defines homeostasis?

The process of maintaining a stable internal environment
A state where all physiological variables remain constant
The ability of an organism to adapt to any external change
A state of dynamic disequilibrium

Answer explanation

Homeostasis refers to the body's ability to maintain a stable internal environment despite external changes.

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which organ system is primarily responsible for transporting nutrients, gases, and wastes?

Cardiovascular system
Digestive system
Nervous system
Respiratory system

Answer explanation

The cardiovascular system transports oxygen, nutrients, and waste products throughout the body via the blood.

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which level of structural organization is immediately higher than the cellular level?

Tissue
Organ
Organ system
Chemical

Answer explanation

Tissues are groups of similar cells working together to perform a specific function.

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which type of feedback mechanism is involved in blood clotting?

Positive feedback
Negative feedback
Neutral feedback
Homeostatic balance

Answer explanation

Blood clotting is a positive feedback loop where an initial stimulus (platelet activation) enhances further platelet aggregation.

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The smallest functional unit of life is the:

Cell
Molecule
Atom
Tissue

Answer explanation

The cell is the basic functional unit of life, performing all necessary biological functions.

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the primary function of the integumentary system?

Protect against external harm
Provide structural support
Regulate metabolism
Facilitate gas exchange

Answer explanation

The integumentary system (skin, hair, nails) provides protection, regulates temperature, and prevents water loss.

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which term describes the ability of an organism to sense changes in its environment and react accordingly?

Responsiveness
Metabolism
Differentiation
Homeostasis

Answer explanation

Responsiveness is the ability to detect and respond to environmental changes.

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