What is the difference between anatomy and physiology?

Anatomy is the study of body structure (what things are made of and where they are), while physiology is the study of body function (how those parts work).

Name the levels of structural organization from smallest to largest

Chemical → Cellular → Tissue → Organ → Organ system → Organism

What is homeostasis and why is it important?

Homeostasis is the ability of the body to maintain a stable internal environment despite external changes; it is essential for proper function and survival.

What are the two major fluid compartments in the body?

Intracellular fluid (inside cells) and extracellular fluid (outside cells), which includes interstitial fluid, plasma, and lymph.

What is a positive feedback loop, and when might it occur?

A positive feedback loop amplifies a response (moves the variable further from the set point). It occurs rarely, such as in blood clotting or the release of oxytocin during labor.

Define “set point” in the context of homeostasis.

The set point is the ideal, target value (or narrow range) for a physiological variable (e.g. body temperature, pH).

What is an atom, and what are its main subatomic particles?

An atom is the smallest unit of matter that retains the properties of an element. Its main subatomic particles are protons, neutrons (in nucleus), and electrons (orbiting).

What makes water essential for life? (List a few properties)

High heat capacity, good solvent, cohesive/adhesive properties, participates in chemical reactions.

What are the four major classes of biomolecules?

: Carbohydrates, lipids, proteins, and nucleic acids.

What is the role of the nucleus and DNA in the cell?

The nucleus houses genetic material (DNA), which holds the instructions for protein synthesis and regulation of cell activities.

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AnatomyWK7

Question	Answer
What is the difference between anatomy and physiology?	Anatomy is the study of body structure (what things are made of and where they are), while physiology is the study of body function (how those parts work).
Name the levels of structural organization from smallest to largest	Chemical → Cellular → Tissue → Organ → Organ system → Organism
What is homeostasis and why is it important?	Homeostasis is the ability of the body to maintain a stable internal environment despite external changes; it is essential for proper function and survival.
What are the two major fluid compartments in the body?	Intracellular fluid (inside cells) and extracellular fluid (outside cells), which includes interstitial fluid, plasma, and lymph.
What is a positive feedback loop, and when might it occur?	A positive feedback loop amplifies a response (moves the variable further from the set point). It occurs rarely, such as in blood clotting or the release of oxytocin during labor.
Define “set point” in the context of homeostasis.	The set point is the ideal, target value (or narrow range) for a physiological variable (e.g. body temperature, pH).
What is an atom, and what are its main subatomic particles?	An atom is the smallest unit of matter that retains the properties of an element. Its main subatomic particles are protons, neutrons (in nucleus), and electrons (orbiting).
What makes water essential for life? (List a few properties)	High heat capacity, good solvent, cohesive/adhesive properties, participates in chemical reactions.
What are the four major classes of biomolecules?	: Carbohydrates, lipids, proteins, and nucleic acids.
What is the role of the nucleus and DNA in the cell?	The nucleus houses genetic material (DNA), which holds the instructions for protein synthesis and regulation of cell activities.

Created by: NathanielM

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