1 Reinforcement Cell Structure - bvsd.k12.pa.us

Copyright ? Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc.

Meeting Individual Needs

Name

Date

Class

1 Reinforcement Cell Structure

Directions: Complete the following table using the correct cell part or function.

Cell part

Function

1.

gelatinlike mixture that flows inside the cell membrane

cell membrane 2.

3.

directs all cell activities

endoplasmic reticulum

4.

5.

makes protein

6.

releases energy stored in food

chloroplast

7.

cell wall

8.

9.

stores water, waste products, food, and other cellular materials

Golgi bodies 11.

10. breaks down food molecules, cell wastes, and worn-out cell parts

Directions: Study the following diagrams. Then identify each part by filling in the blanks in the center.

Animal cell 12. 13. 14. 15. 16. 17. 18. 19. 20. 21.

Plant cell

Cells 27

Meeting Individual Needs

Name

Date

Class

2 Reinforcement Viewing Cells

Directions: In numbers 1?4 below, a code letter has been substituted for each letter of the alphabet. To find out what the sentence says, use the following key to decode. it. In the key, the code letters are shown directly below the alphabet letter each stands for. Write the correct letter above each code letter, then read the sentence aloud.

ABCDEF GHI JKLMNOPQRSTUVWXYZ Z Y X W VU T S RQP O N M L K J I H G F E D C B A

1. _____ ________________ _____ ________ ___ _________ ZOO LITZMRHNH ZIV NZWV LU XVOOH

2. __ _______ ____ _____ _________ _______ ___ ______________ Z XVOO RH GSV YZHRX FMRG LU HGIFXGFIV

______ ______________ _____ ____ ______________ ZMW UFMXGRLM RM ZM LITZMRHN

3. ________ _______ _________ ______ ___________ _______ VEVIB XVOO XLNVH UILN ZMLGSVI XVOO

4. _______ ____ ___________ _____ _______ _________ GSRH RH XZOOVW GSV XVOO GSVLIB

Directions: Answer the following questions on the lines provided.

5. Who was the first person to look at cells with a microscope?

6. In what material did he see cells?

7. What did Schleiden and Schwann conclude about cells?

8. What instrument uses light and one or more lenses to view cells? 9. What instrument uses a magnetic field to magnify images up to 1,000,000 times?

Copyright ? Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc.

28 Cells

Copyright ? Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc.

Meeting Individual Needs

Name

Date

Class

3 Reinforcement Viruses

1. Listed below are the steps by which an active virus reproduces and destroys a cell. Number the steps in the correct order in the blanks provided at the left.

a. The cell bursts open and hundreds of new virus particles are released. These new virus particles go on to infect other cells.

b. A specific virus attaches to the surface of a specific host cell.

c. The viral hereditary material takes control of the host cell and the cell begins to make new virus particles.

d. The hereditary material of the virus entering the host cell.

Directions: Answer the following questions using complete sentences.

2. Explain what a latent virus does when it enters a cell.

3. Discuss several ways to prevent viral infections.

4. What are vaccines made from? 5. How does gene therapy work?

Cells 29

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