Name: ________________________________________
Cell Parts Worksheet
Period: ___________
(Based on reading pages 264-277)
1. Red blood cells are _____________ (size) than an amoeba cell (pg. 265).
2. Cells are the building blocks of _______________ (pg. 265).
3. _________________ fibers make cell walls rigid (fig. 6.8).
4. Hydrogen, Oxygen, Nitrogen, and _______________ are found in life more commonly than
in the Earth’s crust (see chart pg. 266).
5. The most abundant two-atom molecule found in life is ____________ (pg. 266).
6. Carbon based molecules are called ________________ molecules (pg. 267).
7. The four basic types of organic molecules in life are carbohydrates, _______________,
proteins, and ______________________ (pg. 267).
8. ______________________ are organic molecules built mostly from chains of carbon with
________________ (pg. 267).
9. _______________ and _____________ are two examples of complex carbohydrates (pg.
267).
10. Lipids are also called fatty ________________ (fig. 6.9).
11. ________________ are a diverse group of organic molecules made of amino acids (pg.
269).
12. There are ______________ essential amino acids (pg. 270 – the reading has it backward,
the table is correct).
13. Nucleic acids are the fourth type of ____________________________________ (pg. 270).
14. Two types of nucleic acids are DNA (deoxyribonucleic acid) and _____________ (ribonucleic
acid) (pg. 271).
15. A creature that is only one cell is called a single-celled or __________________ organism
(pg. 272).
16. All cells are separated into two groups: prokaryotic cells and ___________________ cells
(pg. 272).
17. Eukaryote cells have a __________________ (pg. 272).
18. Figure 6.15 shows an electron micrograph of _____________________ on human skin (pg.
273).
19. The ________________ is the control center of the cell (pg. 274, fig. 6.16).
20. The cytoskeleton network of protein filaments provides _______________ organization (pg.
274).
Name: ________________________________________
Period: ___________
21. ___________________ are small organelles that contain enzymes that carry out cellular
digestion (pg. 274).
22. Mitochondria are small organelles responsible for _________________ releasing reactions
(pg. 275, fig. 6.16).
23. The endoplasmic reticulum plays a role in ___________________ synthesis or production
(pg. 275, fig. 6.16).
24. The nucleus contains ___________________________________ in the form of DNA that is
vital to cell replication (pg. 275, fig. 6.16).
25. The ________________ apparatus is a system of flattened sacs that modifies, sorts, and
packages macromolecules (pg. 275, fig. 6.16).
26. The difference between animal and plant cells is that plant cells have a ____________ wall
(fig. 6.16, pg. 275).
27. The most notable organelle in a eukaryote cell is usually the _______________ (pg. 275).
28. The _________________ membrane encloses the entire contents of a eukaryote cell (pg.
275).
29. One specialized cell called a red _____________ cell is responsible for bringing oxygen to all
tissues of the body (fig. 6.17).
30. Within the plasma membrane but outside the nucleus is the _______________________
(pg. 276).
31. Both plant and animal cells contain ______________________________________________
__________________________________________________________________ (pg. 276).
32. Scattered throughout the cytoplasm are many small bodies called _____________________
which manufacture proteins (pg. 276).
33. _______________________ are small organelles found only in plant cells that produce
energy by photosynthesis (pg. 276).
34. Specialized plant cells called __________________ cells cover the upper and lower surface
of a leaf (fig. 6.18).