MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

Your skin replaces the cells that it is continually losing by using the process of:

a. glycolysis

b. meiosis

c. mitosis

d. transduction

e. lysis

Correct Answer: c

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

Before the 1600Õs, the belief existed that people were conglomerates of skin and fluid. We now know that the cell is the basic unit of structure and function. The perfection of the microscope enabled us to be able to view these cells. Who gave us this tool?

a. Anton Van Leeuwenhoek

b. Rudolph Virchow

c. Matthias Schleiden

d. Theodur Schwann

Correct Answer: a

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

Galileo made the first biological observation through a microscope. Robert Hooke named ÒcellsÓ. Anton van Leeuwenhoek perfected the light microscope and its viewing capability. Matthias Schleiden used improved microscopes to view the nucleus of plants and to propose all plants are made of cells. Theodur Schwann stated all animals are made of cells. Rudolph Virchow, after completing studies of cell growth and reproduction, concluded cells come from existing cells. All of their contributions culminated in the Cell Theory.

Which statement best describes this timeline?

a. They were dishonest men because they took each otherÕs prior knowledge.

b. No more study of cells is needed because we know everything about cells.

c. Science is ongoing and subject to further study.

d. No need to bother with more research since it is just a theory, and really cannot be true.

Correct Answer: c

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

At one time, many people believed that life spontaneously arose from non-living things. For example, many people believed that spoiled meat produced living maggots. Why was spontaneous generation accepted back then but is no longer accepted as a valid theory today?

a. In the past the best data available to scientists supported the idea, but today the scientific community has collected other data.

b. The current theory of the origin of life has now been proven.

c. In science, theories do not last more than 100 years; they are replaced because they get old.

d. Spontaneous generation was disproved by a famous scientist Louis Pasteur.

e. Spontaneous generation was only a hypothesis and was never viewed as a theory.

Correct Answer: a

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

Which of the following statements is NOT part of the Cell Theory?

a. Cells reproduce by mitosis.

b. All organisms are composed of cells.

c. Cells are the basic unit of life.

d. Cells come from other living cells.

e. All plants are made of cells.

Correct Answer: a

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

What was the contribution of Robert Hooke to the Cell Theory?

a. He invented a simple microscope and looked at pond water.

b. He observed cells producing other cells.

c. He gave cells their name after finding them in cork.

d. He proposed the entire cell theory.

e. He studied animals and found that they were made up of cells.

Correct Answer: c

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

What was the contribution of Anton van Leeuwenhoek to the Cell Theory?

a. He gave cells their name after finding them in cork.

b. He invented a simple microscope and looked at pond water.

c. He found that maggots developed in sealed containers of meat.

d. He studied plants and found that they were made up of cells.

e. He proposed the entire cell theory.

Correct Answer: b

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

What was the contribution of Matthias Schleiden to the Cell Theory?

a. He studied plants and found that they were made up of cells.

b. He studied animals and found that they were made up of cells.

c. He observed cells producing other cells.

d. He proved that cells were not made spontaneously from dead meat.

e. He found that maggots developed in sealed containers of meat.

Correct Answer: a

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

What was the contribution of Rudolph Virchow to the Cell Theory?

a. He observed cells producing other cells.

b. He gave cells their name after finding them in cork.

c. He invented a simple microscope and looked at pond water.

d. He proposed the entire cell theory.

e. He studied plants and found that they were made up of cells.

Correct Answer: a

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

What was the contribution of Theodor Schwann to the Cell Theory?

a. He proposed the entire cell theory.

b. He gave cells their name after finding them in cork.

c. He found cells in non-living things.

d. He studied animals and found that they were made up of cells.

e. He studied plants and found that they were made up of cells.

Correct Answer: d

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

In order to function, cells must maintain a constant internal environment. The maintenance of a relatively stable internal condition is called

a. metabolism.

b. homeostasis.

c. active transport.

d. osmosis.

e. respiration.

Correct Answer: b

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

Sea urchins are relatives of starfish and live in the ocean. If sea urchin eggs are taken from the sea and placed in fresh water

a. they will probably swell.

b. they will probably shrink.

c. there will be no change in their size.

d. they will secrete solutes into the water.

e. the amount of water leaving the cell will equal the amount of water entering the cell.

Correct Answer: a

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

Osmosis refers to

a. the movement of solutes through a selectively permeable membrane.

b. the active transport of water through a membrane.

c. diffusion of water through a cell wall.

d. diffusion of gases.

e. diffusion of water through a selectively permeable membrane.

Correct Answer: e

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

Some brown algae will contain iodine in concentrations 2000 times greater than the surrounding sea water. What process would account for this?

a. osmosis

b. diffusion

c. plasmolysis

d. exocytosis

e. active transport

Correct Answer: e

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

When the turgor pressure of a cell is high, a plant cell will

a. die.

b. be limp.

c. explode.

d. be firm or rigid.

e. plasmolyze.

Correct Answer: d

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

Which of the following items is responsible for the conditions below?

a. plasmolysis

b. turgor pressure

c. endocytosis

d. diffusion

e. active transport

1. Vegetables get crispy when soaked in fresh water._____

2. Bacteria die when they enter a pickle vat._____

3. Carbon dioxide moves into the leaves of plants._____

4. An amoeba takes in food particles too large to pass through the membrane._____

Correct Answers:

1. b

2. a

3. d

4. c

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

If the concentration of sodium ion in the fluid surrounding cells decreases and the concentration of the solutes remain constant,

a. the cell will shrink

b. the cell will swell

c. the fluid outside of the cell will become isotonic

d. the fluid outside of the cell will become hypotonic

e. the cell will not change

Correct Answer: b

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

Quinn places a small section of onion in a glass of salty water over night. The next morning she looks at the onion c ells under the microscope. What will she see?

a. Onion cells as they were the day before

b. Exploded onion cells

c. Bulging onion cells

d. Shriveled onion cells

e. Onion cells filled with salt crystals

Correct Answer: d

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

Which of the following examples does NOT illustrate homeostasis?

a. breathing harder during exercise

b. removing excess fluids through the kidneys

c. coordinating body processes through the nervous and endocrine systems

d. passing genetic characteristics from one generation to another

e. taking nutrients from the blood stream into cells.

Correct Answer: d

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

A biologist dilutes blood cells with water on a glass slide and observes them through a microscope. The cells appear to burst. The biologist wants to observe these blood cells in a dilute solution without the cells bursting. He should investigate

a. other types of cells to see if the bursting continues

b. the amount of salts in the water used to dilute the blood and the amount of salts in the blood plasma

c. the age of the blood sample used by the biologist

d. the chemical make-up of the cell membrane of the blood cells

Correct Answer: b

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO:

One important characteristic of prokaryote cells is that they

a. have no nucleus or any membrane-bound organelles.

b. lack cell walls.

c. have no DNA.

d. have no cell membrane.

e. have no cytoplasm.

Correct Answer: a

MC	Biology	Standard: 02
Objective: 03. Investigate the structure and function of cells and cell parts.
ILO: