8/21 Cell Theory Pro vs Euk Unit 2 Lesson

All living things are made up of cells

● Pro rhymes with?

● Eu rhymes with?

Prokaryotic Cells have NO Nucleus

Prokaryotic Cells Lack Membrane-Bound Organelles

Eukaryotic Cell:

The Nucleus contains which biomolecule?

Eukaryotic Cell:

The Nucleus
contains
DNA=
Chromosomes

Why do we study
cells?

We’re going
to be filling
out
Notebook
page 19

5. Identifiers for Cell Theory

1. All living things are made of cells

A cell is the building block of all life. It is
the smallest structure that can be classified
as a complete living organism.

Definition: Metabolism is the set of

chemical reactions that occur inside of

cells.

Glucose

metabolism

2. All cells metabolize nutrients

3. All cells can reproduce themselves

4. All cells contain genetic material

in the form of DNA.

DNA stands for

deoxyribonucleic acid

Photo by
W.J.Pilsak

5. All living things maintain a steady

balance of water, nutrients and energy

known as homeostasis.

Drag and Drop

According to cell theory, all ​

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are made of ​cells, cells are the smallest units of life, and all cells come from other ​

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.

Drag these tiles and drop them in the correct blank above

living things

cells

Draw

Circle the prokaryotes in this picture:

look for the hint

Multiple Select

What structures do all cells have in common?

• cytoplasm

• Ribosomes

• DNA

• cell membrane

• nucleus

Match

Match the following pictures to the types of cells:

animal

plant

bacteria

• animal

• plant

• bacteria

All cells, and therefore all living things, have
some organelles and structures in common.

Cell Structures

Prokaryote

Eukaryotes

All cells are surrounded by a cell

membrane. Membranes are selectively

permeable which means they only let certain

things enter and exit the cell.

Cell Structures

All cells are full of an aqueous solution call the
cytoplasm. It is an aqueous solution
because the solvent is water! The cytoplasm
contains all of the nutrients and organelles the

cell needs.

Cell Structures

Every cell contains genetic material in the
form of DNA. This DNA is wrapped around
proteins and packaged into large, complex

structures calledchromosomes.

Cell Structures

Prokaryote

Eukaryote

The information that is stored in DNA is used to make

all of the cell’s proteins. Ribosomes of the cell
that read these instructions and make all of

the cell’s proteins.

Cell Structures

Nucleus controls the cell’s
function because it holds

DNA

Cell Structures

Organelles like the ones shown below that have

their own membranes are known as
membrane-bound organelles.

Cell Structures

Golgi
body

Mitochondrion
Endoplasmic

Reticulum

Lysosome

Multiple Choice

To control what enters or leaves the cell is a function of _________.

• Cell Wall

• Cell Membrane

• Nucleus

• Mitochondria

Multiple Choice

I make proteins for the cell. What am I?

• ribosome

• mitochondria

• chloroplast

• lysosome

Turn to page 25

The Endosymbiotic (Living Inside) Theory

Summarize your answer on Page 25

Chloroplasts

Mitochondria

The Endosymbiotic (Living Inside) Theory

A prokaryotic cell (the first cell) engulfed two other cells, forming eukaryotic cells known as mitochondria and chloroplast organelles.

engulfed two other cells.

Forming eukaryotic cells
known as:

mitochondria and chloroplast oragnelles

chloroplasts.

●

The Endosymbiotic Theory

Page 25

● A prokaryotic cell

Multiple Choice

____________ & _________________ are organelles that definitely arose from endosymbiosis.

• Nucleus and cell membrane

• Chloroplast and mitochondria

• Mitochondria and nucleus

• Cell wall and chloroplast

Quick Check

1. Which cell contains DNA?

2. Explain one difference between Prokayotic
and Eukaryotic cells.

*Write your name and class period on your
paper*

Multiple Choice

What is the main difference between prokaryotic and eukaryotic cells?

• Prokaryotic cells have a nucleus and Eukaryotic cells do not

• Prokaryotic cells are unicellular and Eukaryotic cells are multicellular.

• Prokaryotic cells do not have a nucleus, Eukaryotic cells do have a nucleus.

• Prokaryotic cells are plant cells and Eukaryotic cells are animal cells.

Multiple Choice

Considered to be a complex type of cell.

• prokaryotic

• eukaryotic

• both

• neither

Multiple Choice

The ___ is the basic unit of sturucture and function of organisms

• atom

• cell

• matter

• all other answers are correct

Multiple Choice

Consists of a jellylike substance that contains many organelles.

• ribosomes

• cytoplasm

• chloroplasts

• cell wall

Multiple Choice

The theory of Endosymbiosis explains

• The origin of eukaryotes

• How bacteria live

• How species develop

• Why cells rely on one another

Multiple Choice

Which statement is a part of the cell theory?

• all cells come from preexisting cells

• bacteria are prokaryotic cells

• eukaryotic cells are complex

• humans are multicellular

Multiple Choice

Has NO nucleus

• prokaryotic

• eukaryotic

• both

• none of these

Multiple Choice

This type of cells DNA is found in the cytoplasm

• prokaryotic

• eukaryotic

• both

• neither

Multiple Choice

Which organelle creates energy?

• Mitochondria

• Ribosome

• Chloroplast

• Nucleus

• Vacuole