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AP Biology Surface Area to Volume

Total questions: 63

Worksheet time: 1hrs 23mins

Name
Class
Date
1.

Explain the concept of surface area to volume ratio in cells.

a)

The surface area to volume ratio in cells refers to the ratio between the volume of the cell and its surface area.

b)

The surface area to volume ratio in cells refers to the ratio between the length and width of the cell.

c)

The surface area to volume ratio in cells refers to the ratio between the surface area of the cell and its volume.

d)

The surface area to volume ratio in cells refers to the ratio between the number of organelles and the size of the cell.

2.

Describe the relationship between cell volume and surface area in terms of growth and nutrient exchange.

a)

The relationship between cell volume and surface area is that as a cell grows, its volume increases faster than its surface area.

b)

The relationship between cell volume and surface area is that as a cell grows, its surface area increases faster than its volume.

c)

The relationship between cell volume and surface area is that as a cell grows, its volume and surface area increase at the same rate.

d)

The relationship between cell volume and surface area is that as a cell grows, its surface area decreases while its volume increases.

3.

Compare and contrast the surface area to volume ratio in small and large organisms.

a)

The surface area to volume ratio is higher in large organisms compared to small organisms.

b)

The surface area to volume ratio is the same in small and large organisms.

c)

The surface area to volume ratio is not relevant in determining the size of an organism.

d)

The surface area to volume ratio is higher in small organisms compared to large organisms.

4.

Discuss the importance of surface area to volume ratio in the functioning of cells.

a)

The surface area to volume ratio is only important for non-living structures.

b)

The surface area to volume ratio has no impact on the functioning of cells.

c)

The surface area to volume ratio is important for efficient exchange of substances.

d)

The surface area to volume ratio only affects the size of cells.

5.
The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?
a)
Enzymes increase the energy of the reactants.
b)
Enzymes decrease the energy level of the products.
c)
Enzyme decrease the activation energy of the reaction.
d)
Enzymes reverse the direction of the reaction.
6.
When a molecule can occupy the same active site as the substrate, a situation called __________________ can result
a)
Competitive lnhibition
b)
Allosteric Regulation
c)
Non-Competitive Inhibition
d)
Feedback Inhibition
7.
At high temperatures enzyme activity declines because of:
a)
Denaturation
b)
Decreased Kinetic Motion
c)
Increased H-Bonding
d)
Dissociation of Ionic Compounds
8.

The smaller an animal is...

a)

The smaller the surface area to volume ratio

b)

The larger the surface area to volume ratio

9.

Which type of chemical bond is formed when electrons are shared and is a stronger bond that is not easily broken?

a)

Ionic bond

b)

Covalent bond

c)

Hydrogen bond

d)

Van der Waals force

10.

What is the primary function of carbohydrates in the cell membrane?

a)

To provide energy for the cell

b)

To facilitate cell recognition and communication

c)

To increase membrane fluidity

d)

To transport molecules across the membrane

11.
Define Surface area
a)
The total area on the surface of an object
b)
Length X Width 
c)
6 X (length X width)
d)
Add up the sides and divide by 4
12.

Which of the following is least efficient?

a)

A

b)

B

c)

C

d)

D

13.

A cell has a volume of 64 units and total surface area of 96 units. What is the cell's surface area to volume ratio?

a)

1.5

b)

2.8

c)

3.4

d)

4.7

14.

Which of the following has the largest surface area to volume ratio?

a)

A

b)

B

c)

C

d)

D

15.

A spherical bacterial cell has a radius of 3μm. The human egg cell has a radius of 100μm.

Which statement correctly indicates the cell that is able to more efficiently exchange materials with the external environment and provides a correct explanation?

a)

The egg cell, because it has the largest surface-to-volume ratio.

b)

The bacterial cell, because it has the largest surface-to-volume ratio.

c)

The egg cell, because it has the smallest surface-to-volume ratio.

d)

The bacterial cell, because it has the smallest surface-to-volume ratio.

16.

Two different models of a living cell are represented in the figure. Of the two cells represented in the figure, which would likely be more efficient at exchanging substances with the surrounding environment? Formula for surface area of a rectangular prism is the sum of surface area of each side. Formula for surface area of a cylinder is the surface area of both circles 2*pi*r^2 + 2*pi*r*h. You might be able to solve without performing calculations!

a)

Cell A, because it has the larger surface-area-to-volume ratio.

b)

Cell A, because it has the smaller surface-area-to-volume ratio.

c)

Cell B, because it has the larger surface-area-to-volume ratio.

d)

Cell B, because it has the smaller surface-area-to-volume ratio.

17.
The absorption of nutrients is determined by...
a)
The cell's volume
b)
The cell's surface area
c)
The cell's ribosomes
d)
The cell's DNA
18.
As a cell’s size increases, its ratio of surface area to volume decreases.
a)
True
b)
False
19.
As a cell becomes larger, its
a)
surface area increases faster than its volume.
b)
volume increases faster than its surface area
20.
This image shows how materials move into various sized cells in a given amount of time.... why does one square cell have more pink coloring than the others? 
a)
The surface area was too larger to get through
b)
The volume of the other cells was too large for the dye to get through
c)
There was not enough surface area for the dye to get through
d)
The volume was too low for the dye to stay in the square
21.
High Surface area to volume ratio allows cells to do what quickly?
a)
Move materials around inside the cell
b)
Move materials in and out of the cell 
c)
Communicate to other cells
d)
Divide
22.
For cells to stay alive they require what type of SA:V?
a)
Large SA, Large V
b)
Small SA, Large V
c)
Large SA, Small V
d)
Small SA, Small V
23.
How can surface area (SA) be increased? 
a)
Grow larger
b)
Divide into smaller pieces
24.

Which of the following ratios is the same as 50 : 5

a)

5 : 1

b)

5 : 10

c)

10 : 5

d)

10 : 1

25.

Which of the following ratios is the same as 24 : 8?

a)

1 : 3

b)

3 : 1

c)

8 : 3

d)

8 : 24

26.

What is the surface area to volume ratio of a cell with the dimensions of 2x2x2 sq units?

a)

8 cm squared : 24 cm cubed

b)

12 cm squared : 8 cm cubed

c)

12 cm cubed : 8 cm squared

d)

24cm squared : 8 cm cubed

27.

What would be the surface area to volume ratio for an organisms with a SV of 12.57 mm2 and volume of 4.12 mm3?

a)

4 : 1

b)

6 : 2

c)

1.5 : 0.5

d)

3 : 1

28.

____________________ are the structural component while ____________________ are the functional component of cell membrane.

a)

Phospholipids ; protein

b)

Protein ; phospholipids

c)

Proteins ; carbohydrates

d)

Carbohydrates ; phospholipids

29.

Which of the following is true of the cell theory?

a)

all living things are made of one or more cells

b)

cells come from preexisting cells

c)

cells are smallest unit of life

d)

all of these are true

30.
Which cells are more efficient at obtaining nutrients?
a)
Small Cells
b)
Medium Size Cells
c)
Large Cells
d)
X-Large Cells
31.
A florist places a bouquet of white carnations in water containing blue dye. After a time, the flowers turn blue. What process helped the carnations to change color?
a)
Specific heat 
b)
Surface tension
c)
Cohesion and adhesion of water molecules 
d)
Formation of covalent bonds between hydrogen and oxygen molecules
32.
What property of water allows it to be such a versatile solvent that it is often called the "universal solvent?"
a)
Purity
b)
Polarity and cohesion
c)
High heat capacity
d)
Expansion upon freezing
33.

This image shows...

a)

Competitive Inhibition because the inhibitor is bound to the active site

b)

Uncompetitive Inhibition because the inhibitor is bound to the allosteric site

c)

Noncompetitive Inhibition because the inhibitor is bound to the allosteric site

d)

Normal enzyme function

34.

This image shows...

a)

Competitive Inhibition

b)

Uncompetitive Inhibition

c)

Noncompetitive Inhibition

d)

Normal enzyme function

35.
How do you find degrees of freedom?
a)
one less than the possible genotypes
b)
one less than the possible phenotypes
c)
total number divided 2
d)
total number times 2
36.
Observed in the wild are 10 circles, 20 squares and 30 triangles. The ratio for this particular population is 2:3:5 
observed: 10 circles     expected: 12
observed 20 squares    expected : 18
observed 30 triangles   expected: 30
What is the degrees of freedom?
a)
1
b)
2
c)
3
d)
4
37.
Observed in the wild are 10 circles, 20 squares and 30 triangles. The ratio for this particular population is 2:3:5 
observed: 10 circles     expected: 12
observed 20 squares    expected : 18
observed 30 triangles   expected: 30
Chi square + 5.96
Would you accept or reject?
a)
accept
b)
reject
38.
Observed in the wild are 10 circles, 20 squares and 30 triangles. The ratio for this particular population is 2:3:5 
observed: 10 circles     expected: 12
observed 20 squares    expected : 18
observed 30 triangles   expected: 30
What is the X2 of this problem?
a)
.22
b)
.33
c)
.44
d)
.55
39.
Observed in the wild are 10 circles, 20 squares and 30 triangles. The ratio for this particular population is 2:3:5 
observed: 10 circles     expected: 12
observed 20 squares    expected : 18
observed 30 triangles   expected: 30
Would you accept or reject?
a)
accept
b)
reject
40.

Cell A is a cube with a side of 7; Cell B is a sphere with a radius of 7. Which one is most efficient? ​

a)
A
b)
B
41.

Gregor Mendel was experimenting with peas and exploring the basics of genetics. He knew that green (G) is dominant over yellow (g) peas. In one experiment, he crossed a heterozygous green pea with a homozygous yellow pea. In the F1 generation he obtained a total of 400 peas out of which 180 were green and 220 were yellow.

a. Calculate the chi-square to the nearest tenth.

c. Explain if the null hypothesis can be kept or rejected.

a)

x2 = 4; Null hypothesis can be rejected because chi-square is greater than the critical value of 3.84.

b)

x2 = 4.5; Null hypothesis can be kept because chi-square is less than the critical value of 5.99

c)

x2 = 2; Null hypothesis can be rejected because chi-square is less than the critical value of 5.99

d)

x2 = 4; Null hypothesis can be kept because chi-square is greater than the critical value of 3.84

42.

SE refers to the...

a)

mean

b)

standard deviation

c)

standard error of the mean

d)

chi square

43.

The symbol  Σ\Sigma  means

a)

sample mean

b)

square root of all values

c)

sum of all values

d)

sample size

44.

The mean value of a data set is calculated by...

a)

dividing the standard deviation by the square root of the sample size

b)

subtracting one from the sample size

c)

adding together all values and dividing by the sample size

d)

squaring the difference between the observed and expected values

45.

The middle number in a set of data is called the...

a)

mean

b)

standard deviation

c)

median

d)

mode

46.

A farmer is told the average banana tree takes 12 months from the time the rhizome is planted until it yields fruit. His fields take 11, 14, 16, and 14 months. Is the null hypothesis of 12 months accepted?

a)

accepted at 2.08

b)

accepted at 1.44

c)

accepted at 8.33

d)

rejected at 8.33

47.

Which of the following statements is true pertaining to the graph given?

a)

There are more Rainbow Pitta than Cockatoo

b)

There are 17.5 million Guildian Finch

c)

Guildian Finch have the least accurate population measurement.

d)

Cockatoo and Rainbow Pitta have no statistical difference in population.

48.

Which of the following would lower a Chi Square value?

a)

Increase the sample size

b)

Decrease the sample size

c)

Increase the number of sample groups

d)

A smaller difference between observed and expected values

49.

What is the mode for this data: 2, 4, 2, 3, 2, 4, 3, 6, 5

a)

2

b)

3

c)

3.44

d)

4

50.

What is the point of saturation in an enzyme?

a)
The point of saturation is when the enzyme is denatured.
b)
The point of saturation occurs when the enzyme is inactive.
c)
The point of saturation in an enzyme is when all active sites are occupied by substrate.
d)
The point of saturation is when the substrate concentration is zero.
51.

If the findings of the research showed that the difference between the experimental and control group was relatively large, it would be said that it is

a)

randomized

b)

had confounding variables

c)

statistically significant

d)

had a standard deviation

52.
How many microns (µm)
= 1 mm?
a)
1,000
b)
1,000,000
c)
10,000
d)
100,000
53.
To calculate magnification we use......
a)
image size x actual size
b)
image size ÷ actual size
c)
actual size ÷ image size
54.
To calculate image size we use.....
a)
actual size x magnification
b)
magnification ÷ actual size
c)
actual size ÷ magnification
55.

To calculate actual size we use.....

a)

image size ÷ magnification

b)

image size x magnification

c)

magnification ÷ image size

56.
If the image measures 100 mm and the scale bar is is 50 µm, what is the magnification?
a)
2,000 x
b)
150 x
c)
5,000 x
d)
20 x
57.
If a scale bar measures 32 mm and it states it's length is 100 µm, what is the magnification?
a)
320 x
b)
3,200 x
c)
0.32 x
d)
32,000 x
58.
If a bacteria image measures 450 mm and the magnification is 15,000x, what is the actual size of the bacteria?
a)
30 µm
b)
0.3 µm
c)
300 µm
d)
3,000 µm
59.
An ant measures 2 mm in length.  If it is observed at 20x magnification, what length should the scale bar be drawn at?
a)
40 mm
b)
10 mm
c)
4 mm
d)
0.1 mm
60.

Serena measured the image of one of the bacterial cells to be 32 mm. If the magnification of the image is 8,000X, what is the actual size of the bacterial cell?

a)

4 μm

b)

0.004 μm

c)

256,000 μm

d)

0.25 μm

61.
If each division is 100 µm, what is the size of this organism?
a)
4 µm
b)
400 µm
c)
4,000 µm
d)
400 mm
62.

What steps should Burt use follow to calculate the actual size of each bacterial cell?

a)

Step 1: Calculate the magnification by measuring the scale bar image ÷ actual size

Step 2: Measure image of bacterial cell ÷ magnification

b)

Step 1: Calculate the magnification by measuring the scale bar image x actual size

Step 2: Measure image of bacterial cell ÷ magnification

c)

Step 1: Measure the image of the bacterial cell

Step 2: Divide the image size by the scale bar size

d)

He can't, it is impossible to calculate

63.
The higher the magnification, the ________ you see of the specimen.
a)
more
b)
less
c)
higher
d)
lower

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