1. Cell organelles
Answers to Homework

2. cytoplasm Made up of fluid (water and nutrients that the cell needs)
Suspends organelles
Allows chemical reactions to take place in the cell
Allows organelles to be moved around

3. Cell membrane Double layer membrane
Semi-permeable membrane that controls the movement of materials into and out of the cell
Encloses the contents of the cell

4. nucleus Large, circular shape Control centre of the cell
Contains DNA that holds our genetic information

5. nucleolus Small dot inside the nucleus
Special area inside the nucleus that produces ribosomes

6. nucleoplasm
Fluid
The fluid material inside the nucleus.

7. mitochondria Bean shaped with internal membranes
Make energy for the cell (power plant or battery of cell)
Convert energy in glucose into a usable form in a process called cellular respiration
glucose + O2  CO2 + H2O + energy

8. Endoplasmic reticulum
3D network of branching tubes
is connected to the cell membrane and extends throughout the cell
transports materials such as proteins throughout the cell

9. Golgi bodies Appears as a stack of pancake-shaped membranes
Collect and process materials that need to be removed from the cell
makes and secretes mucus

10. vacuole Fluid-filled sac
plant cells usually have one large one and animal cells usually have many small ones
Contains many substances that the cell needs
removes substances from the cell
helps the cell maintain internal pressure

11. Cell wall Rigid, made out of cellulose
Supports and protects the plant cell

12. chloroplast Green organelles
Allows plants to make their own food from the sun using the process of photosynthesis
CO2 + H2O + energy  glucose + O2

13. ribosomes Small dots on the endoplasmic reticulum
Involved in the formation of proteins.

14. chromatin Thread-like strands
The form of DNA that is contained in the nucleus

15. lysosomes Small fluid-filled sacs
A vesicle filled with enzymes to breakdown food, digest waste, and worn out cell parts

16. Plant cell

17. Animal cell