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Transcript
Looking Inside Cells
Chapter 2-4
(pages 60-67)
1. What are organelles?
tiny structures inside the cell that carry out specific functions
2. What is the cell wall? What is its function?
rigid layer of nonliving material that surrounds the cells of plants. It protects and
supports the plant.
3. What type of cell contains a cell wall? plant
4. Where is the cell membrane located in cells that have cell walls? just inside the
cell wall
5. Where is the cell membrane located in cells that do NOT have cell walls? it’s the
outside boundary that separates the cell from the environment
6. What is the main function of the cell membrane? It allows things to move into
and out of the cell. It also offers some protection for the cell.
7. Give the function of each of the following structures:
a. nucleus: control center
b. nuclear envelope: outer membrane that protects the nucleus
c. chromatin: genetic material
d. nucleolus: where ribosomes are produced
8. In the table below, describe the function of each organelle in the cytoplasm.
Organelles in the Cytoplasm
Organelle
Function
mitochondria
“Powerhouse”
endoplasmic reticulum
“E. R.”
ribosomes
converts food energy to energy the cell can use
Golgi bodies
receive proteins from E. R. – package them and redistributes
them to other parts of the cell
capture energy from sunlight and use it to produce food for the
cell
storage area---can store food and wastes
chloroplasts
vacuoles
lysosomes
passageways that carry proteins and other materials from one
part of the cell to another
produce proteins
round structures containing chemicals that break down certain
materials