2-3 Moving Cellular Material



2-3 Moving Cellular Material

True/False

Indicate whether the statement is true or false.

____ 1. Diffusion is a type of active transport.

____ 2. Passive transport takes place without the use of energy.

Completion

Complete each statement.

1. One property of a molecule that determines whether it will pass through a semipermeable membrane is ____________________.

2. The substance that moves through cell membranes by osmosis is ____________________.

Short Answer. Answer ONE of the three questions below. (2 points)

1. How is a plant cell different from an animal cell?

2. What is the main difference between a prokaryotic cell and a eukaryotic cell?

3. How is osmosis related to diffusion?

Multiple Choice

Identify the choice that best completes the statement or answers the question. Write the letter on the blank line to the left of the question.

____ 1. All of the following are principles of the cell theory EXCEPT _____.

|a. |the cell is the smallest unit of life |

|b. |water is the main ingredient in every cell |

|c. |all new cells come from preexisting cells |

|d. |all living things are made of one or more cells |

____ 2. Which best explains the function of a cell membrane?

|a. |offers protection from the outside environment |

|b. |provides a framework to help the cell move |

|c. |transforms energy in the cell into ATP |

|d. |removes viruses from inside the cell |

____ 3. Photosynthesis occurs at the cell level. Which organelle is necessary for photosynthesis?

|a. |Golgi apparatus |c. |mitochondrion |

|b. |chloroplasts |d. |rough endoplasmic reticulum |

____ 4. What is the main difference between a prokaryotic cell and an eukaryotic cell?

|a. |Only prokaryotic cells have vacuoles. |

|b. |Eukaryotic cells are smaller than prokaryotic cells. |

|c. |Prokaryotic cells have many organelles, each with their own specialized functions. |

|d. |Only eukaryotic cells have its genetic material surrounded by a membrane. |

____ 5. What is the main difference between active transport and passive transport?

|a. |During active transport the water inside the cell is used to transport substances throughout the cell. Passive transport|

| |uses the cell’s cytoplasm to move substances around the cell. |

|b. |Passive transport moves substances into and out of the cell without using the cell’s energy and active transport moves |

| |substances using the cell’s energy. |

|c. |Active transport moves substances from higher concentrations to lower concentrations and passive transport moves |

| |substances from lower concentrations to higher concentrations. |

|d. |Passive transport moves substances that are too large to get through the cell membrane by forming a vesicle inside the |

| |cell and active transport forms the vesicle on the outside of the cell. |

____ 6. Which of these have prokaryotic cells?

|a. |snails |c. |bacteria |

|b. |frogs |d. |food |

____ 7. Materials enter and leave the cell through openings in its ____.

|a. |organelles |c. |membrane |

|b. |DNA |d. |chromatin |

____ 8. Substances too large to pass through the cell membrane enter the cell in a process called ____.

|a. |endocytosis |c. |exocytosis |

|b. |passive transport |d. |diffusion |

____ 9. Active transport occurs when ____ is used to move substances through a membrane.

|a. |osmosis |c. |diffusion |

|b. |energy |d. |chlorophyll |

____ 10. The passive transport of water through a membrane is ____.

|a. |osmosis |c. |equilibrium |

|b. |fermentation |d. |active transport |

[pic]

____ 11. Diagram A is an example of ____.

|a. |diffusion |c. |osmosis |

|b. |active transport |d. |equilibrium |

____ 12. Diagram B is an example of ____.

|a. |exocytosis |c. |osmosis |

|b. |active transport |d. |equilibrium |

____ 13. Diagram D is an example of ____.

|a. |exocytosis |c. |passive transport |

|b. |active transport |d. |equilibrium |

____ 14. Diagram E is an example of ____.

|a. |endocytosis |c. |osmosis |

|b. |exocytosis |d. |equilibrium |

____ 15. Diagram F is an example of ____.

|a. |diffusion |c. |exocytosis |

|b. |active transport |d. |equilibrium |

2-3 Moving Cellular Material

Answer Section

TRUE/FALSE

1. ANS: F

Diffusion is the movement of substances from an area of higher concentration to an area of lower concentration.

PTS: 1 DIF: Bloom's Level 2 | DOK 1-LOW

REF: To review this topic refer to Cell Structure and Function: Lesson 3

OBJ: 2-6

2. ANS: T PTS: 1 DIF: Bloom's Level 2 | DOK 1-LOW

REF: To review this topic refer to Cell Structure and Function: Lesson 4

OBJ: 2-7

COMPLETION

1. ANS: its size

PTS: 1 DIF: Bloom's Level 2 | DOK 1-LOW

REF: To review this topic refer to Cell Structure and Function: Lesson 3

OBJ: 2-6 STA: 5.3.6.A.2 | 5.3.8.A.2

2. ANS: water

PTS: 1 DIF: Bloom's Level 2 | DOK 1-LOW

REF: To review this topic refer to Cell Structure and Function: Lesson 3

OBJ: 2-5 STA: 5.3.6.A.2 | 5.3.8.A.2

SHORT ANSWER

1. ANS:

Plant cells have cell walls and chloroplasts.

PTS: 1 DIF: Bloom's Level 3 | DOK 1-LOW

REF: To review this topic refer to Cell Structure and Function: Lesson 1

OBJ: 2-2 STA: 5.3.8.A.2

2. ANS:

Prokaryotic cells have no membrane-bound structures; eukaryotic cells have membrane-bound structures.

PTS: 1 DIF: Bloom's Level 4 | DOK 1-LOW

REF: To review this topic refer to Cell Structure and Function: Lesson 2

OBJ: 2-3 STA: 5.3.8.A.1 | 5.3.8.A.2

3. ANS:

Osmosis is the passive transport of water through a membrane by diffusion.

PTS: 1 DIF: Bloom's Level 2 | DOK 1-LOW

REF: To review this topic refer to Cell Structure and Function: Lesson 3

OBJ: 2-5 STA: 5.3.8.A.1 | 5.3.8.A.2

MULTIPLE CHOICE

1. ANS: B

The cell theory states that all living things are made of one or more cells, the cell is the smallest unit of life, and all new cells come from preexisting cells.

PTS: 1 DIF: Bloom's Level 3 | DOK 2-MOD

REF: To review this topic refer to Cell Structure and Function: Lesson 1

OBJ: 2-1 STA: 5.3.8.A.1 | 5.3.8.A.2

2. ANS: A

The cell membrane is a flexible covering that protects the inside of a cell from the environment outside a cell.

PTS: 1 DIF: Bloom's Level 2 | DOK 1-LOW

REF: To review this topic refer to Cell Structure and Function: Lesson 2

OBJ: 2-4 STA: 5.2.8.B.2 | 5.3.8.A.2

3. ANS: B

Chloroplasts are membrane-bound organelles that use light energy and make food from water and carbon dioxide in a process known as photosynthesis.

PTS: 1 DIF: Bloom's Level 2 | DOK 1-LOW

REF: To review this topic refer to Cell Structure and Function: Lesson 2

OBJ: 2-4 STA: 5.3.6.A.2

4. ANS: D PTS: 1 DIF: Bloom's Level 4 | DOK 3-MOD

REF: To review this topic refer to Cell Structure and Function: Lesson 2

OBJ: 2-4 STA: 5.3.8.A.2 | 5.3.8.D.1

5. ANS: B

Passive transport is the movement of substances through a cell membrane without using the cell’s energy. Active transport is the movement of substances through a cell membrane only by using the cell’s energy.

PTS: 1 DIF: Bloom's Level 4 | DOK 3-MOD

REF: To review this topic refer to Cell Structure and Function: Lesson 3

OBJ: 2-5 STA: 5.3.6.A.2

6. ANS: C

Most prokaryotic cells are unicellular organisms and are called prokaryotes.

PTS: 1 DIF: Bloom's Level 2 | DOK 1-LOW

REF: To review this topic refer to Cell Structure and Function: Lesson 2

OBJ: 2-3 STA: 5.3.8.A.1 | 5.3.8.A.2

7. ANS: C

Substances can pass through a cell membrane by one of several different processes.

PTS: 1 DIF: Bloom's Level 2 | DOK 1-LOW

REF: To review this topic refer to Cell Structure and Function: Lesson 3

OBJ: 2-5 STA: 5.3.8.A.1 | 5.3.8.A.2

8. ANS: A

Endocytosis is the process during which a cell takes in a substance by surrounding it with the cell membrane.

PTS: 1 DIF: Bloom's Level 1 | DOK 1-LOW

REF: To review this topic refer to Cell Structure and Function: Lesson 3

OBJ: 2-6 STA: 5.3.8.A.1 | 5.3.8.A.2

9. ANS: B

Active transport is the movement of substances through a cell membrane only by using the cell’s energy.

PTS: 1 DIF: Bloom's Level 1 | DOK 1-LOW

REF: To review this topic refer to Cell Structure and Function: Lesson 4

OBJ: 2-7 STA: 5.3.8.A.1 | 5.3.8.A.2

10. ANS: A

Osmosis is the diffusion of water molecules only through a membrane.

PTS: 1 DIF: Bloom's Level 1 | DOK 1-LOW

REF: To review this topic refer to Cell Structure and Function: Lesson 3

OBJ: 2-6 STA: 5.3.8.A.1 | 5.3.8.A.2

11. ANS: A

Diffusion is the movement of substances from an area of higher concentration to an area of lower concentration.

PTS: 1 DIF: Bloom's Level 4 | DOK 2-MOD

REF: To review this topic refer to Cell Structure and Function: Lesson 3

OBJ: 2-6 STA: 5.3.6.A.2 | 5.3.8.A.2

12. ANS: C

Osmosis is the diffusion of water molecules only through a membrane.

PTS: 1 DIF: Bloom's Level 4 | DOK 2-MOD

REF: To review this topic refer to Cell Structure and Function: Lesson 3

OBJ: 2-5 STA: 5.3.6.A.2 | 5.3.8.A.2

13. ANS: C

Osmosis is the diffusion, passive transport, of water molecules only through a membrane.

PTS: 1 DIF: Bloom's Level 4 | DOK 2-MOD

REF: To review this topic refer to Cell Structure and Function: Lesson 3

OBJ: 2-5 STA: 5.3.6.A.2 | 5.3.8.A.2

14. ANS: B

Exocytosis is the process during which a cell’s vesicles release their contents outside the cell.

PTS: 1 DIF: Bloom's Level 4 | DOK 2-MOD

REF: To review this topic refer to Cell Structure and Function: Lesson 3

OBJ: 2-5 STA: 5.3.6.A.2 | 5.3.8.A.2

15. ANS: D

Usually, diffusion continues through a membrane until the concentration of a substance is the same on both sides of the membrane. When this happens, a substance is in equilibrium.

PTS: 1 DIF: Bloom's Level 4 | DOK 2-MOD

REF: To review this topic refer to Cell Structure and Function: Lesson 3

OBJ: 2-8 STA: 5.3.6.A.2 | 5.3.8.A.2

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