Unit 1 A&P Test Review sheet

Smallest living level of organization?

The cell

Parts of the skeletal system?

Bones, tendons

Parts of the cardiovascular system?

Heart, Blood vessels

blank is maintaining a stable internal environment

Homeostasis

Describe anatomical position

Standing erect, palms out, toes/feet forward

Carpal means-

Wrist

Buccal means-

cheek

Maintaining body temp is done through what feedback?

Negative

Why do other atoms react with other atoms?

To fill their valence shell with electrons

What is the difference between an ionic and a covalent bond?

Ionic- complete transfer of electrons

Covalent- sharing of electrons

Write a generic synthesis reaction

A + B^{→ AB}

Describe an enzyme and how it works to speed up chemical reactions

A biological catalyst- made up of proteins- that speeds up chemical reactions by lowering the energy needed ( can be reversed)

What are the 4 life molecules

Carbohydrates, lipids, proteins-, nucleic acids

What do cell organelles do?

Keeps the cell alive and healthy

mRNA is…?

Messenger Ribonucleic acid

A unit 3 consecutive nucleotide is called..?

A Codon

Describe diffusion

Movement of molecules/particles from high to low concentration

Describe Isotonic

the movement of water in AND out of the cell

Describe Hypertonic

Movement of water out of the cell, shrinking

Describe Hypotonic

Movement of water into the cell, inflating

Describe Endocytosis

Brings large particles IN to the cell

Describe Exocytosis

Exports materials OUT of the cell

Phases of transcription and transaltion

Interphase, prophase, metaphase, anaphase, telephase, cytokineses

What is translation?

RNA to protein process

What is transcription?

DNA to RNA

What is the function of ribsomes?

Protein synthesis

What is the role of the nervous system?

Control body functions