Ch. 2Eukaryotic Cell Organelles

EQ: What is the function of 3 different organelles in an Eukaryotic Cell?

Eukaryotic Cell Structures• Structures in a

Eukaryotic cell that perform important cellular functions are known as organelles.

• The Cytoplasm is the portion of the cell outside the nucleus and is where the organelles are found.

What is the function of the nucleus?

• The nucleus is the control center of the cell.• Contains the

cell’s DNA which has the instructions to code for important proteins, enzymes, and molecules

What is the function of the ribosomes?• One of the most

important organelles because they create proteins which are essential for the cell and our bodies to function properly.

• Ribosomes are small particles of RNA (nucleic acid) and protein found throughout the cytoplasm

What is the function of the endoplasmic reticulum (ER)?• There are 2 main types• Classified by whether it has ribosomes

attached (Rough ER) or no ribosomes at all (Smooth ER).

Ribosomes

What is the function of the Endoplasmic Reticulum?• Smooth ER• Important in lipid production, and regulation of calcium.

• Rough ER• Involved in the production of proteins and moving material throughout the cell•Similar to a highway in the cell

What is the function of the Golgi Bodies?• The Golgi Bodies

appears as a stack of closely packed membranes

• The function of the Golgi Bodies are to package, modify proteins and ship material into and out of the cell.

TO BE CONT…..

What is the function of lysosomes?

• Lysosomes contain digestive enzymes that break up and then recycle waste products of the cell.

What is the function of the Mitochondria?

• Nearly all eukaryotic cells contain mitochondria

• Mitochondria covert energy in food into compounds that the cell can then use for energy (ATP).

Differences between Plant and animal cells

• The Plant cell is still an eukaryotic cell but has different characteristics than an animal cell.

• Plant cells have some organelles that an animal cell does not have.

What is the function of chloroplast?

• Plants and some other organisms contain chloroplast.

• Chloroplasts capture the sun’s energy and converts it into sugars/food for the cell through the process of photosynthesis.

What is the function of vacuoles?

• In many plant cells there is a single, large central vacuole.

• The central vacuole is important in plant cells because it stores water and other nutrients for the cell.

Vacuole

What is the function of the Cell Wall?• The Cell Wall is a tough,

rigid layer that surrounds plant cells and some prokaryotic cells.

• Provides structure, support and protection

• Prevents cell from losing it’s shape when water moves into or out.

What are the functions of the cytoskeleton?• The cytoskeleton is a

network of protein that helps the cell to maintain its shape. Also involved with movement.

• The cytoskeleton is made up of:•Microfilaments•Microtubules

Question 11.Chloroplast are found in the cells

ofa.Plants onlyb.Plants and some other

organismsc.All eukaryotesd.Most prokaryotes

Question 2•Which of the following is NOT a function of the Golgi bodies?a.Create proteinsb.Modify proteinsc.Sort proteinsd.Package proteins

Question 3•Which of the following is a function of the cytoskeleton?a.Manufactures new cell organellesb.Assists in movement of some cells c.Releases energy in cellsd.Modifies, sorts and packages

proteins