Protein synthesis 2

Today's lesson
1. Mini test - cell membranes and cytoskeleton
2. What is protein synthesis?
3. How does it work in the cell?
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Slide 1: Tekstslide
BiologieMiddelbare schoolvwoLeerjaar 3

In deze les zitten 13 slides, met interactieve quizzen, tekstslides en 1 video.

Onderdelen in deze les

Today's lesson
1. Mini test - cell membranes and cytoskeleton
2. What is protein synthesis?
3. How does it work in the cell?

Slide 1 - Tekstslide

How can a substance be transported across a membrane passively (without ATP)
A
The substance moves from a higher concentration to a lower concentration
B
The substance moves from a lower concentration to a higher concentration
C
It uses a protein pump
D
It doesn't

Slide 2 - Quizvraag

If a substance is transport against a concentration gradient (low concentration to high) what 2 things are needed by the cell?
A
ATP and a hydrophilic membrane
B
ATP and a hydrophobic membrane
C
ATP and a transport protein
D
none of the above

Slide 3 - Quizvraag

Small polar molecules can pass easily through a cell membrane. Give 1 example of a small polar molecule.
A
glucose
B
amino acid
C
ions
D
water

Slide 4 - Quizvraag

What part of the cell membrane is hydrophobic?
A
The tails - they love water
B
The tails - they "hate water
C
The heads - they hate water
D
The heads - they love water

Slide 5 - Quizvraag

Protein synthesis
-Process by which proteins are made in the cell
-Various organelles are needed:
  1. Nucleus - DNA carries code, changes it to RNA
  2. RNA leaves cell to ribosome - protein made here
  3. Protein goes to ER - folded into shape
  4. Vesicle transports protein to Golgi (finished shape)
  5. Completed protein transported out of the cell via secretion

Slide 6 - Tekstslide

Different kinds of proteins
Hormones



Receptors



Channels
Carriers
And many, many more



Slide 7 - Tekstslide

To function you need a specific 3D-structure or your polypeptide chain.

Slide 8 - Tekstslide

Proteins are very specific
specific function must mean specific structure



building blocks
amino acids



Slide 9 - Tekstslide

Slide 10 - Tekstslide

What is DNA?
- Carries "recipe" for all proteins
-Recipe carried on 4 bases
  1. A - adenine
  2. C - cytosine
  3. G - guanine
  4. T - Thymine

Slide 11 - Tekstslide

Slide 12 - Video

HW 
Q 14 in module

Slide 13 - Tekstslide