BIOLOGY REVISION SHEET FINAL EXAM TERM-I GRADE 9 Session ...

BIOLOGY REVISION SHEET

FINAL EXAM TERM-I

GRADE 9 Session: 2018-19

Note: The students should first study from their textbook and then try to solve this revision sheet independently

Materials included in the FINAL exam: Chapter 3

Sections: 1,2,3,4 & 5 Textbook Pages: 64-90

The FINAL exam paper will be on Sunday 9/12/2018

Student Name: .................................................................

SECTION 3.1

Q.1: Match each scientist in the table with the statement listed below that describes what he did to help develop the cell theory.

a. concluded that animals and, in fact, all living things are made of cells. b. was the first to identify cells and name them. c. proposed that all cells come from other cells. d. concluded that plants are made of cells. e. observed live cells and observed greater detail.

Scientist 1. Hooke 2. Leeunwenhoek 3. Schleiden 4. Schwann 5. Virchow

Letter of Statement that Completes the Sentence

Q.2: Compare between Eukaryotic and Prokaryotic cells: Eukaryotic Cells

Nucleus Membrane-bond organelles

Place of DNA Cell type

Example of organism

Prokaryotic Cells

Q.3: What are the three parts of the cell theory? _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________

SECTION 3.2

Q.1: Write the function of each cell organelles and describe its structure:

1) Nucleus

2) Endoplasmic Reticulum

3) Vacuole

4) Cytoplasm

5) Golgi Apparatus

6) Lysosomes

7) Cell membrane

8) Ribosomes

9) Cytoskeleton

10) Vesicles

11) Mitochondria

12) Centrosome and Centrioles

13) Cell Wall

14) Chloroplasts

Q.2: Answer the following questions: a) What characteristics are shared by most cells? __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________

b) What are the main differences between animal and plant cell? __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________

c) What similarities do mitochondria and chloroplasts share? __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________

d) What is the difference between a cell wall and a cell membrane? __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________

SECTION 3.3

MAIN IDEA: Cell membranes are composed of two phospholipid layers. Q.1: Draw a phospholipid in the box below. Label the three major parts.

2. Which part of a phospholipid is charged, or polar? ______________________________________________________________

3. Which part of a phospholipid is nonpolar? ______________________________________________________________

4. What type of molecules interact with water, polar or nonpolar? ______________________________________________________________

5. Where does a cell membrane come into contact with water? ______________________________________________________________

6. Why do the phospholipids surrounding the cell form a bilayer? ______________________________________________________________

MAIN IDEA: A cell membrane has other types of molecules embedded in the phospholipid bilayer.

Q.2: List a function of each type of molecule in the table below.

Molecule

7. Cholesterol

Function

8. Proteins

9. Carbohydrates

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