What is homeostasis, and why is it important for the human body?

Homeostasis is the maintenance of a stable internal environment despite external changes. It is important because it ensures that physiological processes function properly and cells survive.

What is the difference between negative and positive feedback mechanisms?

Negative feedback reverses a change to maintain stability (e.g., body temperature regulation), while positive feedback amplifies a change (e.g., blood clotting).

What are the four major classes of biomolecules in the human body?

Carbohydrates, lipids, proteins, and nucleic acids.

How do enzymes function in biochemical reactions?

Enzymes act as catalysts, lowering the activation energy required for reactions without being consumed.

What are the main differences between prokaryotic and eukaryotic cells?

Eukaryotic cells have a nucleus and membrane-bound organelles, whereas prokaryotic cells do not.

Name the four basic tissue types in the human body.

Epithelial, connective, muscle, and nervous tissue.

What is the primary function of the epidermis?

The epidermis provides a protective barrier against environmental damage, pathogens, and water loss.

What are the two main types of bone tissue?

Compact bone (dense, forms the outer layer) and spongy bone (porous, inside bone ends).

What is the difference between axial and appendicular skeletons?

The axial skeleton includes the skull, vertebral column, and rib cage, while the appendicular skeleton includes limbs and girdles.

What is the sliding filament theory of muscle contraction?

Muscle contraction occurs when actin filaments slide past myosin filaments, shortening the sarcomere and generating tension.

Help

Options

focusNode

Didn't know it?
click below

Knew it?
click below

Don't Know

Remaining cards (0)

Know

retry

shuffle

restart

0:00

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

MICHELLE CABRILLAS

Physiology week 1-6

Question	Answer
What is homeostasis, and why is it important for the human body?	Homeostasis is the maintenance of a stable internal environment despite external changes. It is important because it ensures that physiological processes function properly and cells survive.
What is the difference between negative and positive feedback mechanisms?	Negative feedback reverses a change to maintain stability (e.g., body temperature regulation), while positive feedback amplifies a change (e.g., blood clotting).
What are the four major classes of biomolecules in the human body?	Carbohydrates, lipids, proteins, and nucleic acids.
How do enzymes function in biochemical reactions?	Enzymes act as catalysts, lowering the activation energy required for reactions without being consumed.
What are the main differences between prokaryotic and eukaryotic cells?	Eukaryotic cells have a nucleus and membrane-bound organelles, whereas prokaryotic cells do not.
Name the four basic tissue types in the human body.	Epithelial, connective, muscle, and nervous tissue.
What is the primary function of the epidermis?	The epidermis provides a protective barrier against environmental damage, pathogens, and water loss.
What are the two main types of bone tissue?	Compact bone (dense, forms the outer layer) and spongy bone (porous, inside bone ends).
What is the difference between axial and appendicular skeletons?	The axial skeleton includes the skull, vertebral column, and rib cage, while the appendicular skeleton includes limbs and girdles.
What is the sliding filament theory of muscle contraction?	Muscle contraction occurs when actin filaments slide past myosin filaments, shortening the sarcomere and generating tension.

Created by: cabrillasm

"Know" box contains:
Time elapsed:
Retries: