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Active Transport

Passive Transport

Microscope Science

OrganellesMembrane Movement

FINAL ROUND

Topic 1: Active

$100 Question

Molecules that are too large to be moved through the membrane can be transported into the cell by

a. osmosis. c. exocytosis.

b. endocytosis. d. diffusion.

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ANSWER

Topic 1:

$100 Answer

Molecules that are too large to be moved through the membrane can be transported into the cell by

a. osmosis. c. exocytosis.

b. endocytosis. d. diffusion.

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Topic 1:

$200 Question

Both active transport and facilitated diffusion involve

a. ATP.

b. movement against a concentration gradient.

c. carrier proteins.

d. All of the above

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ANSWER

Topic 1:

$200 Answer

Both active transport and facilitated diffusion involve

a. ATP.

b. movement against a concentration gradient.

c. carrier proteins.

d. All of the above

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Topic 1:

$300 Question

The sodium-potassium pump

a. is a carrier protein c. is located in the cytoplasm of a cell.

b. uses passive transport. d.transports sugar molecules.

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ANSWER

Topic 1:

$300 Answer

The sodium-potassium pump

a. is a carrier protein c. is located in the cytoplasm of a cell.

b. uses passive transport. d.transports sugar molecules.

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Topic 1:

$400 Question

When a signal molecule binds to a receptor protein, the receptor protein may

a. change the permeability of the membrane.

b. cause the formation of a second messenger molecule.

c. catalyze certain chemical reactions in the cell.

d. All of the aboveBACK TO GAME

ANSWER

Topic 1:

$400 Answer

When a signal molecule binds to a receptor protein, the receptor protein may

a. change the permeability of the membrane.

b. cause the formation of a second messenger molecule.

c. catalyze certain chemical reactions in the cell.

d. All of the aboveBACK TO GAME

Topic 1:

$500 Question

Which of the following is a form of active transport?

a. osmosis c. facilitated diffusion

b. diffusion d. sodium-potassium pump

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ANSWER

Topic 1:

$500 Answer

Which of the following is a form of active transport?

a. osmosis c. facilitated diffusion

b. diffusion d. sodium-potassium pump

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Topic 2: Passive

$100 Question

As a result of diffusion, the concentration of many types of substances

a. always remains greater inside a membrane.

b. eventually becomes balanced on both sides of a membrane.

c. always remains greater outside of a membrane.

d. becomes imbalanced on both sides of a membrane.

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ANSWER

Topic 2:

$100 Answer

As a result of diffusion, the concentration of many types of substances

a. always remains greater inside a membrane.

b. eventually becomes balanced on both sides of a membrane.

c. always remains greater outside of a membrane.

d. becomes imbalanced on both sides of a membrane.

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Topic 2:

$200 Question

Diffusion is the movement of a substance

a. only through a lipid bilayer membrane.

b. from an area of low concentration to an area of higher concentration.

c. only in liquids.

d. from an area of high concentration to an area of lower concentration.

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ANSWER

Topic 2:

$200 Answer

Diffusion is the movement of a substance

a. only through a lipid bilayer membrane.

b. from an area of low concentration to an area of higher concentration.

c. only in liquids.

d. from an area of high concentration to an area of lower concentration.

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Topic 2:

$300 Question

The diffusion of water into or out of a cell is called

a. solubility. c. selective transport.

b. osmosis. d. endocytosis.

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ANSWER

Topic 2:

$300 Answer

The diffusion of water into or out of a cell is called

a. solubility. c. selective transport.

b. osmosis. d. endocytosis.

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Topic 2:

$400 Question

A cell will swell when it is placed in a(n)

a. hypotonic solution. c. isotonic solution.

b. hypertonic solution. d. None of the above

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ANSWER

Topic 2:

$400 Answer

A cell will swell when it is placed in a(n)

a. hypotonic solution. c. isotonic solution.

b. hypertonic solution. d. None of the above

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Topic 2:

$500 Question

Which of the following does not require energy?

a. diffusion c. active transport

b. endocytosis d. sodium-potassium pump

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ANSWER

Topic 2:

$500 Answer

Which of the following does not require energy?

a. diffusion c. active transport

b. endocytosis d. sodium-potassium pump

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Topic 3: Micro

$100 Question

The metric system of measurement is based on powers of

a. 1. c. 100.

b. 10. d. 1,000.

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ANSWER

Topic 3:

$100 Answer

The metric system of measurement is based on powers of

a. 1. c. 100.

b. 10. d. 1,000.

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Topic 3:

$200 Question

Fuzzy images viewed with a microscope may be due to poor

a. resolution. c. magnification.

b. amplification. d. None of the

above

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ANSWER

Topic 3:

$200 Answer

Fuzzy images viewed with a microscope may be due to poor

a. resolution. c. magnification.

b. amplification. d. None of the

above

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Topic 3:

$300 Question

A microscope with a 4x objective lens and a 10x ocular lens produces a total magnification of

a. 14x. c. 400x.

b. 40x. d. 4000x.

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ANSWER

Topic 3:

$300 Answer

A microscope with a 4x objective lens and a 10x ocular lens produces a total magnification of

a. 14x. c. 400x.

b. 40x. d. 4000x.

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Topic 3:

$400 Question

Living specimens can be viewed using a(n)

a. light microscope. c. scanning tunneling

microscope.

b. electron microscope. d. Both (a) and (c)

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ANSWER

Topic 3:

$400 Answer

Living specimens can be viewed using a(n)

a. light microscope. c. scanning tunneling

microscope.

b. electron microscope. d. Both (a) and (c)

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Topic 3:

$500 Question

Surface area is an important factor in limiting cell growth because

a. the cell can burst if the membrane becomes too large.

b. materials cannot enter the cell if it is too large.

c. the cell may become too large to take in enough food and to remove enough wastes.

d. waste products cannot leave the cell if it is too small.

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ANSWER

Topic 3:

$500 Answer

Surface area is an important factor in limiting cell growth because

a. the cell can burst if the membrane becomes too large.

b. materials cannot enter the cell if it is too large.

c. the cell may become too large to take in enough food and to remove enough wastes.

d. waste products cannot leave the cell if it is too small.

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Topic 4: Organelle

$100 Question

Short, hairlike structures that protrude from the surface of a cell and are packed in tight rows are called

a. flagella. c. microfilaments.

b. microtubules. d. cilia.

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ANSWER

Topic 4:

$100 Answer

Short, hairlike structures that protrude from the surface of a cell and are packed in tight rows are called

a. flagella. c. microfilaments.

b. microtubules. d. cilia.

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Topic 4:

$200 Question

The cell membrane

a. encloses the contents of a cell.

b. allows materials to enter and leave the cell.

c. is selectively permeable.

d. All of the above

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ANSWER

Topic 4:

$200 Answer

The cell membrane

a. encloses the contents of a cell.

b. allows materials to enter and leave the cell.

c. is selectively permeable.

d. All of the above

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Topic 4:

$300 Question

The structure that regulates what enters and leaves the cell is the

a. nucleus. c. nuclear membrane.

b. cell wall. d. cell membrane.

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ANSWER

Topic 4:

$300 Answer

The structure that regulates what enters and leaves the cell is the

a. nucleus. c. nuclear membrane.

b. cell wall. d. cell membrane.

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Topic 4:

$400 Question

Which type of molecule forms a lipid bilayer within a cell membrane?

a. protein c. nucleic acid

b. phospholipid d. carbohydrate

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ANSWER

Topic 4:

$400 Answer

Which type of molecule forms a lipid bilayer within a cell membrane?

a. protein c. nucleic acid

b. phospholipid d. carbohydrate

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Topic 4:

$500 Question

Phospholipids are molecules that

a. contain phosphate.

b. have nonpolar “tails” and polar “heads.”

c. form the lipid bilayer of the cell membrane.

d. All of the above

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ANSWER

Topic 4:

$500 Answer

Phospholipids are molecules that

a. contain phosphate.

b. have nonpolar “tails” and polar “heads.”

c. form the lipid bilayer of the cell membrane.

d. All of the above

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Topic 5: Membrane

$100 Question

Ions move through ion channels by

a. endocytosis. c. passive transport.

b. diffusion. d. active transport.

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ANSWER

Topic 5:

$100 Answer

Ions move through ion channels by

a. endocytosis. c. passive transport.

b. diffusion. d. active transport.

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Topic 5:

$200 Question

Proteins that act like selective passageways in the cell membrane are known as

a. marker proteins. c. receptor proteins.

b. channel proteins. d. None of the above

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ANSWER

Topic 5:

$200 Answer

Proteins that act like selective passageways in the cell membrane are known as

a. marker proteins. c. receptor proteins.

b. channel proteins. d. None of the above

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Topic 5:

$300 Question

Transport proteins that allow ions to pass through the cell membrane are called

a. receptor proteins. c. ion channels.

b. marker proteins. d. None of the above

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ANSWER

Topic 5:

$300 Answer

Transport proteins that allow ions to pass through the cell membrane are called

a. receptor proteins. c. ion channels.

b. marker proteins. d. None of the above

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Topic 5:

$400 Question

Sugar molecules cross the cell membrane by

a. active transport. c. osmosis.

b. facilitated diffusion. d. gated channels.

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ANSWER

Topic 5:

$400 Answer

Sugar molecules cross the cell membrane by

a. active transport. c. osmosis.

b. facilitated diffusion. d. gated channels.

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Topic 5:

$500 Question

Proteins involved in facilitated diffusion are

a. carrier proteins. c. Both (a) and (b)

b. receptor proteins. d. None of the above

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ANSWER

Topic 5:

$500 Answer

Proteins involved in facilitated diffusion are

a. carrier proteins. c. Both (a) and (b)

b. receptor proteins. d. None of the above

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FINAL ROUND Question

One important organelle that helps maintain homeostasis by moving substances from one part of the cell to another is the

a. endoplasmic reticulum. c. Golgi apparatus.

b. mitochondrion. d. cytoplasm.

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ANSWER

FINAL ROUND Answer

One important organelle that helps maintain homeostasis by moving substances from one part of the cell to another is the

a. endoplasmic reticulum. c. Golgi apparatus.

b. mitochondrion. d. cytoplasm.BACK TO GAME