Protein SynthesisShort Unit – Section Quiz MONDAY!!!

Steps to complete Read section 4 and take notes in your notebook (star

chart points)

Complete handout packet (star chart points)

Answer the end of section questions (star chart points)

Complete your A4 poster with a partner (you will be assigned a step) (12 project points)

Snork Genes (10 lab points)

Mutations practice (as a class)

Quiz (25 points)

A4 poster - How do cells make proteins?

Steps to include using pictures/diagrams/words/explanation/creativity/pop-ups:

Step 1: DNA is copied to mRNA(Where? How? )

Step 2: mRNA travels to ribosome (where is ribosome?)

Step 3: ribosome moves along mRNA to “read it”

Step 4: tRNA attaches to mRNA using Genetic Code

Step 5: Amino acids dropped off by tRNA to create a polypeptide chain

A4 poster rubric Includes title that is large and easy to

read (example title: STEP 2: mRNA travels to ribosome)(2 points)

Includes short explanation of what happens at this step (3 points)

Includes at least 1 diagram hand drawn (3 points)

Includes an element of creativity (2 points)

Includes at least 3 colors (2 points)

What is a protein?

• One of the 4 major organic molecules that make up living organisms

• Made up of many amino acids (amino acid = monomer)

• MANY different functions:

• antibodies that fight disease

• enzymes that speed up chemical reactions

• Structural proteins (fingernails)

• Transport molecules across membranes

RNA – the OTHER nucleic acid

DIFFERENCES DNA/RNA

RNA is SINGLE stranded

RNA has the base URACIL, not thymine

RNA has a different sugar in its backbone called RIBOSE (not deoxyribose)

TYPES OF RNA

mRNA: copies DNA

tRNA: carries amino acid

rRNA: makes up ribosome

Step 1: DNAmRNA

Location:

Step 2: mRNA travels to ribosome

Step 3: ribosome moves along mRNA to “read” it

Step 4: tRNA attaches to mRNA using Genetic

Code

Step 5 – amino acids dropped off to form

polypeptide

MutationsORIGINAL DNA SEQUENCE:

CCG AAT TCA GCA CCT TAC

MUTATION #1

CCG AAT TCA GCG CCT TAC

MUTATION #2

CCG AAA TCA GCG CCT TAC

MUTATION #3

CCG TAA TTC AGC ACC TTA C