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Name____________________________________ Hour ________________ Date__________________
7.2 Directed Reading- Eukaryotic Cell Structure
pg 174
1. What are organelles? __________________________________________________________
2. What two major parts do scientists divide the eukaryotic cell into?
_________________________ & __________________________
3. What is the function of the nucleus? ________________________________________________
a. What is contained in the nucleus? ____________________________________________
b. What instructions are coded in the DNA? ______________________________________
4. What surrounds the nucleus? ______________________________________________________
5. What is chromatin? _________________________________________________________________________
a. Describe the chromatin. _______________________________________________________________
b. What does chromatin condense to form during cell division? __________________________________
6. What is the function of the nucleolus? __________________________________________________________
7. What is the function of the ribosomes? __________________________________________________________
a. Describe the ribosomes. _______________________________________________________________
b. Where do the instructions for making proteins come from? ____________________________________
8. What is the function of the endoplasmic reticulum? _______________________________________________
_________________________________________________________________________________________
a. What makes rough endoplasmic reticulum ‘rough’? __________________________________________
b. What is the function of the rough ER? _____________________________________________________
c. Why is smooth endoplasmic reticulum ‘smooth’? ____________________________________________
d. What types of cells are abundant in the rough ER? ____________________________________________
e. What is the function of the smooth ER? ____________________________________________________
f. What type of cell is abundant in the smooth ER? _____________________________________________
9. True or False? Ribosomes are always attached to endoplasmic reticulum. ________________________________
10. What is the function of the Golgi apparatus? _______________________________________________________
___________________________________________________________________________________________
11. What are lysosomes? __________________________________________________________________________
a. List two functions of lysosomes:
i. _______________________________________________________________________________
ii. _______________________________________________________________________________
b. What genetic disease has been linked to improper functioning of the lysosome? _____________________
12. What is the function of the vacuoles? _____________________________________________________________
a. A Name the 4 materials that are stored in vacuoles. 1)_________________, 2) ___________________
3)__________________, 4) ____________________
b. How many vacuoles do plant cells contain? _________________________________________________
c. What is the plant vacuole filled with? _____________________________________________________
d. Besides storage for the plant cell, what other function does the vacuole serve? _____________________
____________________________________________________________________________________
e. What type of vacuole does a Paramecium contain? ___________________________________________
f. What is the function of the vacuole in the Paramecium? _______________________________________
____________________________________________________________________________________
13. What is the function of the mitochondria? ________________________________________________________
a. How many membranes are found in the mitochondria? ________________________________________
b. How do humans inherit the mitochondria? __________________________________________________
c. Who do you get your mitochondria from? __________________________________________________
14. What is the function of the chloroplasts? ________________________________________________________
a. How many membranes do chloroplasts have? ______________________________________________
b. What is the green pigment found in chloroplasts? ___________________________________________
15. How are mitochondria and chloroplasts different from other organelles? ________________________________
__________________________________________________________________________________________
16. What is the endosymbiotic theory? ______________________________________________________________
__________________________________________________________________________________________
17. Who came up with the endsymbiotic theory? _____________________________________________________
18. What are the two functions of the cytoskeleton? ___________________________________________________
__________________________________________________________________________________________
a. What are the two principal filaments that make up the cytoskeleton?
_____________________________ & _________________________________
b. Name another function of microfilaments. __________________________________________________
c. Name another function of microtubules. ____________________________________________________
19. What is the function of the centrioles? ___________________________________________________________
a. What types of cells have centrioles? ________________________________________________________
20. Where are the cilia and flagella found? ___________________________________________________________
a. What are they composed of? _____________________________________________________________
b. What are they used for? _________________________________________________________________