Cells 4-3

Cell Structure and Function

​How are eukaryotic cells organize?

organelle → cell →tissue → organ→ organ system → organism

​Organelles

• Tiny organs within a cell

• Carry out specific functions

Multiple Choice

Which description best describes the role of the organelles?

• Tiny organs in cells that perform specific jobs.

• Provides protection and structure.

• Contains the instructions needed to create proteins.

• Also called the phospholipid bilayer

• Two layers of phospholipids with polar heads facing outward and tails facing inward.

• Regulates what goes in and out of the cell

Cell Membrane

• A gel-like substance that fills a cell

• The area within a cell that is not a structure.

• It's made up of water, salts, proteins, and other organic molecules. 

Cytoplasm

• Genes/ genetic information

• Housed in the nucleus.

DNA (chromosomes)

• Holds DNA 

• "Control Center Room"
  

Nucleus

Nucleus and DNA

Match

Match each description with the correct cell structure.

• Genes/ genetic information

• Gel-like substance that fills a cell, made up of water, salts, & proteins

• Separates it from its surrounding and regulates what goes in and out.

DNA

Cytoplasm

Cell Membrane

• DNA

• Cytoplasm

• Cell Membrane

• Site for Cellular Respiration. 

• Converts food to ATP (energy)

• A.K.A.  “Powerhouse”

All eukaryotes have mitochondria!!!!

Mitochondria

Multiple Choice

Refer to the diagram. Which number identifies the organelle that

converts food into energy?

• #1

• #3

• #7

• #9

• Synthesizes lipids (makes lipids).

• No ribosomes, therefore it appears smooth.

​Smooth E.R.

• Synthesizes proteins (makes proteins).

• Has Ribosomes

​Rough E.R.

Endoplasmic Reticulum

• Packages macromolecules for transport.
  Think of UPS store that sorts and labels packages.

• Vesicles Transport material around or outside the cell.

Think of the UPS vehicles/trucks

Golgi Apparatus & Vesicles

Multiple Choice

What is the difference between a rough ER and Smooth ER?

• Rough ER is close to the Nucleus and Smooth ER is far away.

• Rough ER contain lysosomes and Smooth ER does not.

• Rough ER has ribosomes attached while Smooth ER does not.

• Smooth ER holds the DNA in the cell.

Multiple Choice

Refer to the diagram. Which number identifies the Golgi apparatus?

• #1

• #4

• #5

• #9

• Part of the cytoskeleton

• Help divide the cell during cell division/mitosis

​Centrioles

• Digestion; Contains enzymes that break down material. 

  Think of custodians

​Lysosomes

Lysosomes and Centrioles

​Found in Animals Only!!!!!

Multiple Choice

Lysosomes are found in all eukaryotic cells.

• True

• False

Organelles in Plants ONLY!!!!

• Purpose is protection, shape & structure.

• Found outside of cell membrane

• Made of cellulose

• Found in bacteria as well.

.

​

​Cell Wall

Multiple Select

Select the letter that indicates the cell wall.

• structure A

• structure B

• structure C

• structure D

• Also called Large Permanent Vacuole

• Large storage of water and enzymes. 

​Large Central Vacuole

Multiple Choice

What is the function of the Large permanent vacuole?

• Animal cells

• Provides structural support and defines shape

• Stores nutrients, water, and provides structure.

• Carries out  PHOTOSYNTHESIS

• Thylakoids: Site of the Light reactions of photosynthesis (looks like stack of pancakes).

• Chlorophyll is responsible for green pigments.

​Chloroplast

Multiple Choice

Select the letter that indicates the chloroplast and function.

• structure A; site of photosynthesis

• structure D; site of photosynthesis

• structure G; provides support

• structure E; contains nutrients

Poll

How do we feel about eukaryotic cells?

• I know all the parts and their function 😊

• I need more practice.😐

• I'm completely lost. 😨