Aaaaaaaaaaaaaaaaaa

Solo disponible en BuenasTareas
  • Páginas : 2 (328 palabras )
  • Descarga(s) : 0
  • Publicado : 6 de marzo de 2011
Leer documento completo
Vista previa del texto
Homework!

Topic 1 and 2: Biomolecules and Prokaryotic and Eukariotyc Cells

Name: Mariana Mejia Arens Date Due: 22 February 2011 9th grade A B C
General instructions: Completeor answer each statement or question shown below regarding Biomolecules and the types of cells.

a. Short Answer. Provide a complete answer for the following statements. Read carefully andanswer everything.

1. Use the three points of the cell theory to explain how humans and bacteria are similar.

2. State the function of each of the following: DNA, enzyme, fat, sugar. Then,classify each of them into the group of organic compounds to which they belong.

b. Complete. Fill in the blank with the correct word or words that completes each statement or question.

1.Cells are the basic units of structure and ______function___________ in living things.

2. A structure found in plant and bacterial cells but not in animal cells is the cell _______wall_________.3. Unlike in an animal cell, the genetic material in a bacterial cell is not found in a(n): Cytoplasm

4. Organelles known as ____lysosomes_____________ contain chemicals that break down foodparticles and old cell parts.

5. Small grain like bodies called ribosome produce proteins inside cells.

6. A microscope allowed Hooke to see “tiny rectangular rooms,” which he called cellsc. Multiple Choice. Mark with an X the correct answer for each question or statement.

1. Sugar molecules can combine with one another to form large molecules called

a. | proteins. |b. | starches. |
c. | enzymes. |
d. | lipids. |
2. Enzymes are important because they

a. | contain water. |
b. | speed up chemical reactions. |
c. | contain genetic material. |
d. |help the cell maintain its shape. |

3. Unlike the cell wall, the cell membrane

a. | is found in all cells. |
b. | is made of chromatin. |
c. | protects the nucleus with a rigid layer...
tracking img