Active Transport - Chapter 3.5

Last updated almost 7 years ago

15 questions

1

Library

Active Transport - Chapter 3.5

Last updated almost 7 years ago

15 questions

Cells use energy to transport materials that cannot diffuse across a membrane.
Active Transport video (abt 4 mins)

1

Practice: Go to classzone.com, Animations, Unit 2 Cells, Chapter 3, Get Through
a Cell Membrane​; answer the questions below to demonstrate your success.

 http://www.classzone.com/cz/books/bio_07/resources/htmls/animated_biology/unit2/bio_ch03_0093_ab_cellmem.html 

1

If you want to see whether you understand this section completely, try the practice quiz at classzone.com for Chapter 3.5.  It is under "Assessments".

http://www.classzone.com/cz/books/bio_07/quiz.htm?title=Section%20Quiz&ch=2&testId=18180

Cells use energy to transport materials that cannot diffuse across a membrane.
Active Transport video (abt 4 mins)

Review: Passive Transport includes 1) simple diffusion, 2) facilitated diffusion, and 3) osmosis.

True

False

Active transport is different than simple diffusion

A because it moves molecules down a concentration gradient.

B because it moves molecules against a concentration gradient.

Active transport is also different than simple diffusion

A because it requires energy to move particles across a cell membrane.

B because it doesn't require energy to move particles across a cell membrane.

Active transport uses energy from the breakdown of ATP.

True

False

ATP stands for adenosine triphosphate. The "tri" means there are 3 phosphates in this molecule.

True

False

Transport proteins share these common characteristics:

A Both span the cell membrane.

B Both change shape when they bind to target molecules.

C A and B are both correct.

There are two types of endocytosis

A simple diffusion and facilitated diffusion.

B phagocytosis and pinocytosis.

C diffusion and osmosis

The difference between phagocytosis and pinocytosis is that phagocytosis takes in liquids and pinocytosis takes in large solid particles.

True

False

A cell may transport a substance in a vesicle if the substance is too large to cross the membrane.

True

False

During endocytosis, the vesicle membrane fuses with a lysosome, and the membrane and it contents are broken down by lysosomal enzymes.

True

False

Practice: Go to classzone.com, Animations, Unit 2 Cells, Chapter 3, Get Through
a Cell Membrane​; answer the questions below to demonstrate your success.

 http://www.classzone.com/cz/books/bio_07/resources/htmls/animated_biology/unit2/bio_ch03_0093_ab_cellmem.html 

What was needed to get sugar across the membrane?

A protein with channel

B vesicle

C vesicle and energy

D protein with channel and ATP energy

What was needed to get waste out of the cell (exocytosis)?

A vesicle

B protein with channel

C protein with channel and ATP

D nothing, it diffused across the membrane

What was required to get oxygen and water across the cell membrane?

A nothing, they are small enough to diffuse across the membrane without
assistance or energy.

B vesicle

C protein with channel and ATP

D vesicle and ATP

What was needed to move charged ions across the cell membrane?

A protein with channel

B protein with channel and ATP

C vesicle

D vesicle with ATP

What was required to move proteins across the cell membrane?

A protein with channel

B protein with channel and ATP

C vesicle

If you want to see whether you understand this section completely, try the practice quiz at classzone.com for Chapter 3.5.  It is under "Assessments".

http://www.classzone.com/cz/books/bio_07/quiz.htm?title=Section%20Quiz&ch=2&testId=18180

Review: Passive Transport includes 1) simple diffusion, 2) facilitated diffusion, and 3) osmosis.

True

False

Active transport is different than simple diffusion

A because it moves molecules down a concentration gradient.

B because it moves molecules against a concentration gradient.

Active transport is also different than simple diffusion

A because it requires energy to move particles across a cell membrane.

B because it doesn't require energy to move particles across a cell membrane.

Active transport uses energy from the breakdown of ATP.

True

False

ATP stands for adenosine triphosphate. The "tri" means there are 3 phosphates in this molecule.

True

False

Transport proteins share these common characteristics:

A Both span the cell membrane.

B Both change shape when they bind to target molecules.

C A and B are both correct.

There are two types of endocytosis

A simple diffusion and facilitated diffusion.

B phagocytosis and pinocytosis.

C diffusion and osmosis

The difference between phagocytosis and pinocytosis is that phagocytosis takes
in liquids and pinocytosis takes in large solid particles.

True

False

A cell may transport a substance in a vesicle if the substance is too large to cross the membrane.

True

False

During endocytosis, the vesicle membrane fuses with a lysosome, and the membrane and it contents are broken down by lysosomal enzymes.

True

False

What was needed to get sugar across the membrane?

A protein with channel

B vesicle

C vesicle and energy

D protein with channel and ATP energy

What was needed to get waste out of the cell (exocytosis)?

A vesicle

B protein with channel

C protein with channel and ATP

D nothing, it diffused across the membrane

What was required to get oxygen and water across the cell membrane?

A nothing, they are small enough to diffuse across the membrane without
assistance or energy.

B vesicle

C protein with channel and ATP

D vesicle and ATP

What was needed to move charged ions across the cell membrane?

A protein with channel

B protein with channel and ATP

C vesicle

D vesicle with ATP

What was required to move proteins across the cell membrane?

A protein with channel

B protein with channel and ATP

C vesicle