Hypothesis: (What So You Think Will Happen and Why?)

Name: ______

Hr: ____

Cell Unit Packet

Egg Demo

Initial observations:

Date / Circumference / Shape / Texture

Liquid #1: ______

Hypothesis: (What so you think will happen and why?)

Day 2 observations:

Date / Circumference / Shape / Texture

Liquid #2: ______

Hypothesis: (What so you think will happen and why?)

Day 3 observations:

Date / Circumference / Shape / Texture

Liquid #3: ______

Hypothesis: (What so you think will happen and why?)

Final observations:

Date / Circumference / Shape / Texture

What was this experiment demonstrating?

Cell Organelles

Name of organelle / Function (Job) / Location (plant, animal or both)

Cell Theory Notes

“Cell Dudes from Long Ago”

Antonie van Leeuwenhoek lived from 1632 to 1723:

His contribution to science:

Robert Hooke lived From 1635 to 1703:

His contribution to science:

Robert Brown lived from 1773 to 1858:
His contribution to science:

Matthais Schleiden lived from 1804 to 1881:

His contribution to science:

Schwann lived from 1810 until 1882:

His contribution to science:

Rudolf Virchow lived from 1821 until 1902:

His contribution to science:

Together, Schleiden, Schwann and Virchow are given most of the credit for coming up with the ______which states:
1.

1930’s- Electron Microscopes

· What is it?

· What are the two different types?

The two different categories of cells:

• ______= no nucleus (bacteria)

• ______= with nucleus (animal & plant)

Cell Organelle Notes

Cell (nuclear) Membrane:

· Surrounds the cell, like the “______” of the cell.

· Regulates what ______and ______the cell and provided ______and ______for the cell.

· The cell membrane has ______layers.

Cytoplasm:

· a thick liquid inside all cells aka “______”

· ______all cell organelles.

Endoplasmic Reticulum:

· The endoplasmic reticulum (______) is a series of ______that ______materials.

· The ER is made up of ______and ______regions.

· “______”

Rough Endoplasmic Reticulum:

· Rough = with ______

· Transports ______

Smooth Endoplasmic Reticulum:

· Smooth = ______ribosomes

· Transports ______

Ribosome:

· Assembles small ______parts

· Located on the surface of the ______or free floating.

Golgi Bodies:

· The Golgi is in charge of ______of chemicals.

· Substances arrive there and are changed

· Then they are ______and sent other places in the cell.

· Sometimes substances are ______of the cell.

Lysosomes:

· cells' ______system

· contain ______that break apart nearly all cell molecules.

· digest worn out ______parts

· If the lysosome breaks, it can destroy the cell!

The Nucleus:

· The nucleus is the ______for DNA and ______of the cell.

· The nucleus is surrounded by the ______(envelope)

· DNA makes up ______, which carry the genetic code for a cell.

Mitochondria:

· Mitochondria are the ______production centers of the cell.

· Mitochondria convert ______and ______into ______.

· “______”

· Many found in muscle cells.

Vacuoles:

· The vacuole is a ______filled organelle that stores amino acids, ______, water and ______.

· Much larger in ______.

Centrioles:

· found only in ______cells

· involved in cell ______

Plant cells contain additional organelles that are absent from animal cells!

Cell Wall:

· The cell wall is a ______layer that ______a cell and gives it shape.

Chloroplast:

· The chloroplast is a special organelle necessary to carry out ______.

· Chloroplasts contain certain pigments that give leaves the color they contain.

· They belong to a group of organelles called “______”. They all contain pigments and starch.

Cell Membranes & Transport

Membranes are made of 2 layers called ______.

Draw a cell membrane here:

· Cell membranes are ______.

· It acts like a ______by letting some chemicals ______& ______others.

· It is the ______of the cell.

The membrane stops things because of how it is built:

· The ______of the membrane is ______. It ______water.

· These water loving and water hating parts of the membrane tend to keep some things away from the membrane.

The membrane is ______- ______It has holes. Some things get through. This is how…

Diffusion:

• The random movement of particles from a ______to a ______concentration.

• Uses ______energy.

• A molecule will slide through the membrane …only if it will fit.

Osmosis

• Osmosis is the diffusion of ______.

• Only the small ______(the water) can get through.

Facilitated Diffusion:

• The molecules that are too big to get through the membrane use ______.

• Requires no energy!

• There are different types of proteins: ______and ______.

To review… Simple Diffusion, Osmosis, and Facilitated Diffusion…

• Use _____ energy (Passive Transport)

• Move particles from ______to a ______concentration

Active Transport:

• A process that ______energy

• Proteins move molecules across the membrane from ______to ______concentration.

• Except for the above two points, it is the same as facilitated diffusion.