Science mid terms topic 3 key terms Flashcards
1
Q
Tissue
A
A group of similar cells that perform a specific function
2
Q
Organ
A
A body structure that is composed of different kinds of tissues that work together
3
Q
Organ System
A
A group of organs that work together to perform a major function
4
Q
Gland
A
A organ that produces and releases chemicals either through ducts or into the bloodstream
5
Q
Hormone
A
A chemical produced by an endocrine gland, that affects growth and development
6
Q
Stress
A
The reaction of a person’s body to potentially threatening, challenging or disturbing events
7
Q
Nutrients
A
substance in food that provide the raw materials and energy needed for an organism to carry out its essential processes
8
Q
Enzyme
A
A type of protein that speeds up chemical reactions in the body
