Concepts
Levels of organization
Health needs
Examples
100

Define homeostasis

 Body’s ability to maintain stable internal conditions


100

What is the smallest unit of life?


The cell

100

Name the five basic health needs.


oxygen, water, food, shelter, or sleep


100

The heart pumping blood is an example of which level of organization?


Organ

200

Define “Tissue”

Group of similar cells that work together to perform a specific function


200

Cells working together form which level of organization?


A tissue

200

Which basic need provides the body with energy through cellular respiration?


Oxygen

200

Shivering when it’s cold is an example of what process?


Homeostasis

300

Define “Cell”

The basic unit of life


300

Place these levels in order: organ, cell, tissue, organism, system.


Cell- tissue-organ-system-organism

300

Carbohydrates are the body’s main source of what?


Energy

300

Which two systems work together to move the body?


skeletal and muscular systems


400

Main difference between anatomy and physiology

Anatomy is the study of structure, while physiology is the study of function


400

Which level comes after organs in the hierarchy of organization?


Systems

400

Which two nutrients help regulate body functions rather than providing energy?


Vitamins and minerals

400

Why do humans need shelter in terms of homeostasis?


Rest, maintain a stable body temperature and prevent accidents/injuries


500
Mention the 5 main groups of nutrients and their function 

Carbs- Immediate energy

Fats- Storage energy

Proteins- Structure

Vitamins and minerals- Cell function 


500

The stomach is made of all four tissue types. Which type moves food by contractions?


Muscle tissue

500

 Why does the body need sleep in terms of brain function?


Consolidate memory, restore brain activity etc.

500

A runner drinks water after sweating during exercise. This is an example of maintaining balance in which health need?


Water