Ch 3 Cells

ch 3. cells: The living units

Some text here about the topic of discussion

They differ in size, shape, and subcellular components

DIFFERENT STRUTURES= DIFFERENT FUNCTIONS

​

​Some text here about the topic of discussion.

​cells are very diverse

Multiple Choice

Anatomy has to do with?

• structure

• function

cells have 3 main parts

1. Plasma membrane/cell membrane: protection, barrier

2. semi-fluid substance, like a colloid. It contains organelles

3. Nucleus: controls the cell's activities, contains DNA

Some text here about the topic of discussion

Open Ended

What are the 3 main parts of a cell?

lipid bilayer: contains hyderophilic heads and hydrophobic tails

Integral proteins: function as transport proteins, enzymes or recptors

Peripheral proteins: they act as motor proteins for shape change during mitosis ex. actin,myosin, spindle fibers

​Some text here about the topic of discussion.

the cell membrane

Open Ended

heads are hydrophobic or hydrophilic

​Tight junctions: integral proteins that prevent fluids and molecules from moving between cells

Desmosomes: prevent the cells from coming apart

Gap junctions: used to spread ions, simple sugars between cells

​Some text here about the topic of discussion.

cell junctions

Open Ended

What are the 3 types of cell junctions?

Poll

Wjhat topic would you need further assistance?

• cell junctions

• cell parts

• difussion. osmosis

• tonicity

• no questions