Download 1. Robert Hook was famous for: 2. Matthias Schleiden: 3. Theodor

Cell Parts Worksheet – This is a high point assignment.
Name: __________________
Period: _________
Fill in the blanks on this sheet, and then draw each cell part on a separate piece of unlined paper. Draw neatly,
use color and label each part. The  symbol tells you what you must draw and label.
1. Robert Hook was famous for:
2. Matthias Schleiden:
3. Theodor Schwann
4. Rudolf Virchow
5. The three parts of Cell Theory are:
6. Organelles are:
7. The Plasma Membrane performs a number of critical functions for the ________. It consists of a
double layer of __________________. It regulates all that _____________ and leaves the cell. In
multicellular organisms it has markers on the outside surface so the organism can recognize its
own cells and identify ___________.
 On a separate piece of paper, draw and label a large cell membrane that is
approximately the size of the whole sheet. You will be filling it with sketches of
organelles so make it big. In the corner of your paper, draw a close-up of section of the
membrane showing the phospholipid bilayer.
8. Nucleus is called the ______________________ of the cell. It _________________ all cell
activity. The nuclear envelope has many ____________________ for letting out genetic
information. When the cell is making copies of itself, it contains DNA in the form of thick ropy
strands called_____________________. When the cell is resting and making ____________ the
DNA is thin and relaxed and is called _____________. The DNA stores information needed for the
manufacture of _________________. The large solid spot is the _____________________ which
manufactures __________________________..
 Draw and label the nucleus and make sure it shows what it what it contains. Don’t forget
the nuclear pores.
9. Endoplasmic Reticulum (ER) is a network of double membranes found in the _____________
10. Rough E.R. is continuous with the __________________ and has
__________________________ attached to it. This gives it its texture. These ribosomes
manufacture __________________________ for the cell.
 Draw and label RER just outside the nuclear membrane. Remember to add ribosomes to
make it “rough”.
11. ___________ E.R. has no _______________. It acts as a ____________________system
throughout the cytoplasm. Its job is to __________________________ and
___________________________It also produces ___________________ for the cell.
 Draw and label SER inside your cell.
12. There are 2 kinds of ribosomes: The ________________ ribosomes are found in the RER and
make __________ that are shipped out of the cell. The ________________ ribosomes are found
in the cytoplasm. They make proteins that will be used:______________
 Draw a few of both kinds of ribosomes. Label one of each kind.
13. 9. Golgi Body is responsible for _________________________ for the cell. It looks like stacks of
pita (pocket) bread.
 Draw and label a Golgi body inside your cell
14. Vacuoles are used to hold ___________ and ______________ The vacuole in a plant cell is very
___________in size and contains _____________.
 Your cell is a plant cell, (it has chloroplasts). Draw and label a very large vacuole.
15. The membrane around the vacuole is called the ____________ Label it.
 Since this is a plant cell, draw and label the cell wall around the cell membrane.
16. Microscopic channels that go through the cell walls of plants and allow them to transport and
communicate between cells are called the: _____________________
17. Lysosomes are ______________________. They are produced by the ________________
body. They are filled with powerful _______________ enzymes. They help protect you by
__________________ the bacteria that your white blood cells engulf. They also act as a cleanup
crew for the cell.
Draw and label a lysosome inside your cell
18. Contractile Vacuoles are found in some single celled organisms. Their function is to :
19. A mitochondrion is the _______________________ of the cell. This is where the cell
_________________________ It has a ____________________ membrane. Mitochondria have
their own ________ and manufacture some of their own _______________.
Draw and label a mitochondrion inside your cell
20. The ______________________ is a series of protein tubes and filaments that form the skeleton of
the cell. This structure gives the cell shape.

21. Chloroplasts are the site of ______________________ which is where plants make food from
_________ and __________. Their color is _____________________________
Draw and label a chloroplast inside your cell. Use the correct color.
Cell movement:
22. Some cells move with tiny oars called: _________________
23. Others move by whipping one or two protein filaments called: _____________
24. And others push out a pseudopod and fill it with cytoplasm. This structure is called
______________ movement. When the fluid in the cell fills the pseudopod, this is called
__________________