Free Printable BSCC1010 Exam 2

Free Printable Worksheets

Worksheets

BSCC1010 Exam 2

Total questions: 110

Worksheet time: 1hrs 17mins

Name

Class

Date

1.

Which type of microscope has visible light pass through the specimen?

a)

Light Microscope

b)

Scanning Electron Microscope

c)

Transmission electron microscope

2.

Which type of microscope is used to study subcellular structures?

a)

Light Microscope

b)

Scanning Electron Microscope

c)

Transmission electron microscope

3.

Which type of microscope focuses a beam of electrons onto the surface of the specimen providing a 3-D image?

a)

Light Microscope

b)

Scanning Electron Microscope

c)

Transmission electron microscope

4.

Which type of microscope passes a beam of electrons through the specimen to study internal structures?

a)

Light Microscope

b)

Scanning Electron Microscope

c)

Transmission electron microscope

5.

Is the following a characteristic of a prokaryotic or eukaryotic cell?

No nucleus

a)

Prokaryotic Cell

b)

Eukaryotic Cell

6.

Is the following a characteristic of a prokaryotic or eukaryotic cell?

DNA in region called the nucleoid

a)

Prokaryotic Cell

b)

Eukaryotic Cell

7.

Is the following a characteristic of a prokaryotic or eukaryotic cell?

Membrane bound nucleus that carries the DNA

a)

Prokaryotic Cell

b)

Eukaryotic Cell

8.

Is the following a characteristic of a prokaryotic or eukaryotic cell?

Membrane-bound organelles

a)

Prokaryotic Cell

b)

Eukaryotic Cell

9.

Is the following a characteristic of a prokaryotic or eukaryotic cell?

Cytoplasm in the region between the plasma membrane and nucleus

a)

Prokaryotic Cell

b)

Eukaryotic Cell

10.

Is the following a characteristic of a prokaryotic or eukaryotic cell?

No membrane-bound organelles

a)

Prokaryotic Cell

b)

Eukaryotic Cell

11.

Is the following a characteristic of a prokaryotic or eukaryotic cell?

Cytoplasm bound by the plasma membrane

a)

Prokaryotic Cell

b)

Eukaryotic Cell

12.

What is the general structure of the plasma membrane of the cell made of?

a)

Proteins

b)

Carbohydrates

c)

Phospholipids

d)

Nucleic Acids

13.

What is the purpose of the cell membrane?

a)

To make proteins

b)

To allow passage of nutrients and waste

c)

To make lipids

d)

To sort and package materials

14.

What is the purpose of the smooth endoplasmic reticulum (ER)?

a)

To make proteins

b)

To allow passage of nutrients and waste

c)

To make lipids

d)

To sort and package materials

15.

What is the purpose of the ribosomes?

a)

To make proteins

b)

To allow passage of nutrients and waste

c)

To make lipids

d)

To sort and package materials

16.

This encloses the nucleus separating from the cytoplasm?

a)

nuclear envelope

b)

nuclear lamina

c)

chromosomes

d)

chromatin

e)

nucleolus

17.

This is composed of protein and maintains the shape of the nucleus?

a)

nuclear envelope

b)

nuclear lamina

c)

chromosomes

d)

chromatin

e)

nucleolus

18.

unwound DNA and proteins of chromosomes are called?

a)

nuclear envelope

b)

nuclear lamina

c)

chromosomes

d)

chromatin

e)

nucleolus

19.

The location within the nucleus that is the site of ribosomal RNA (rRNA) synthesis?

a)

nuclear envelope

b)

nuclear lamina

c)

chromosomes

d)

chromatin

e)

nucleolus

20.

What is phagocytosis?

a)

The way food vacuoles are formed

b)

A membranous sac of hydrolytic enzymes

c)

When a cell engulfs another cell

d)

Recycling the cells own organelles

21.

What is autophagy?

a)

The way food vacuoles are formed

b)

A membranous sac of hydrolytic enzymes

c)

When a cell engulfs another cell

d)

Recycling the cells own organelles

22.

What are the functions of the smooth ER?

a)

Synthesize lipids, metabolize carbohydrates, detoxify drugs and poisons, store calcium ions

b)

Has bound ribosomes that secrete glycoproteins, distributes transport vesicles

c)

Modifies products of the ER, manufactures certain macromolecules, sort and packages materials into transport vesicles

d)

Shaping the cell, guiding movement of organelles, seprating chromosomes during cell division

23.

What are the functions of microtubules?

a)

Synthesize lipids, metabolize carbohydrates, detoxify drugs and poisons, store calcium ions

b)

Has bound ribosomes that secrete glycoproteins, distributes transport vesicles

c)

Modifies products of the ER, manufactures certain macromolecules, sort and packages materials into transport vesicles

d)

Shaping the cell, guiding movement of organelles, seprating chromosomes during cell division

24.

What are the functions of the rough ER?

a)

Synthesize lipids, metabolize carbohydrates, detoxify drugs and poisons, store calcium ions

b)

Has bound ribosomes that secrete glycoproteins, distributes transport vesicles

c)

Modifies products of the ER, manufactures certain macromolecules, sort and packages materials into transport vesicles

d)

Shaping the cell, guiding movement of organelles, seprating chromosomes during cell division

25.

What are the functions of the Golgi apparatus?

a)

Synthesize lipids, metabolize carbohydrates, detoxify drugs and poisons, store calcium ions

b)

Has bound ribosomes that secrete glycoproteins, distributes transport vesicles

c)

Modifies products of the ER, manufactures certain macromolecules, sort and packages materials into transport vesicles

d)

Shaping the cell, guiding movement of organelles, seprating chromosomes during cell division

26.

Check all that apply to lysosomal enzymes:

a)

can hydrolyze proteins, fats, polysaccharides, and nucleic acids

b)

work best in the acidic environment inside the lysosome

c)

Found in many freshwater protists, pump out excess water out of cells

d)

Found in many mature plant cells, hold organic compounds and water

27.

Check all that apply to contractile vacuoles:

a)

can hydrolyze proteins, fats, polysaccharides, and nucleic acids

b)

work best in the acidic environment inside the lysosome

c)

Found in many freshwater protists, pump out excess water out of cells

d)

Found in many mature plant cells, hold organic compounds and water

28.

Check all that apply to central vacuoles:

a)

can hydrolyze proteins, fats, polysaccharides, and nucleic acids

b)

work best in the acidic environment inside the lysosome

c)

Found in many freshwater protists, pump out excess water out of cells

d)

Found in many mature plant cells, hold organic compounds and water

29.

The site of cellular respiration, a metabolic process that uses oxygen to generate ATP.

a)

Lysosome

b)

Mitochondria

c)

Chloroplast

d)

Peroxisomes

30.

A membranous sac of hydrolytic enzymes that can digest macromolecules.

a)

Lysosome

b)

Mitochondria

c)

Chloroplast

d)

Peroxisomes

31.

oxidative organelles; e.g. detoxify alcohol

a)

Lysosome

b)

Mitochondria

c)

Chloroplast

d)

Peroxisomes

32.

found in plants and algae, the site of photosynthesis

a)

Lysosome

b)

Mitochondria

c)

Chloroplast

d)

Peroxisomes

33.

Explain the evolutionary origins of mitchondria and cloroplasts.

4 lines

34.

What is the internal fluid of the chloroplast?

a)

Thylakoids

b)

Stroma

c)

Chromoplasts

d)

Amyloplasts

35.

What is the structure in the chloroplasts that are membranous sacs that stack to form a granum?

a)

Thylakoids

b)

Stroma

c)

Chromoplasts

d)

Amyloplasts

36.

What stores red and brown pigments that give color to petals, fruits, and roots?

a)

Thylakoids

b)

Stroma

c)

Chromoplasts

d)

Amyloplasts

37.

What are the colorless, store starch granules?

a)

Thylakoids

b)

Stroma

c)

Chromoplasts

d)

Amyloplasts

38.

The (a) is a network of fibers extending through the cytoplasm. It organizes the cell's structures and activities, anchoring many organelles.

39.

The thickest of the three components of the cytoskeleton, hollow rods about 25nm in diameter. Function in shaping the cell, guiding movement of organelles, and separating chromosomes during cell division. Control the beating of cilia and flagella.

a)

Intermediate Filaments

b)

Microfilaments

c)

Microtubules

40.

Also called actin filaments, the thinnest component of the cytoskeleton. Solid rods about 7nm in diameter. Structural role is to bear tension within the cell. Bundles of these make up the core of microvilli of intestinal cells. Arranged parallel in muscle cells. Responsible for cytoplasmic streaming within cells.

a)

Intermediate Filaments

b)

Microfilaments

c)

Microtubules

41.

fibers in the cytoskeleton with diameters in a middle range, range in diameter from 8-12m,. Support cell shape and fix organelles in place. They are more permanent cytoskeleton fixtures than the other two fiber types.

a)

Intermediate Filaments

b)

Microfilaments

c)

Microtubules

42.

The cytoskeleton interacts with (a) to produce motility.

43.

Which types of organisms have cell walls?

a)

Animal Cell

b)

Plant Cell

c)

Fungi

d)

Prokaryotes

e)

Some Protists

44.

The (a) helps maintain the shape and prevents excessive uptake of water in the plant cell.

45.

The plasma membrane is selectively (a) , allowing some substances to cross more easily than others.

46.

The phospholipids that make up the plasma membrane have 1 ___________ head and 2 ________________ tails.

(a)

47.

What determines most of the membrane's specific functions?

a)

Carbohydrates

b)

Proteins

c)

Lipids

d)

Nucleic Acids

48.

What is/are the major functions of membrane proteins?

a)

Transport

b)

Enzymatic Activity

c)

Receptors

d)

Recognition

e)

All of the above

49.

Select which are true of transport proteins:

a)

Channel and carrier proteins are types of transport proteins

b)

Move hydrophobic molecules through the membrane

c)

Move hydrophilic molecules through the membrane

d)

Is specific to the substance it moves

50.

What are the driving forced of movement across the cell membrane?

a)

Concentration gradient

b)

Electric gradient

c)

Pressure gradient

d)

Thermal gradient

e)

All of the above

51.

What is osmoregulation?

a)

The tendency for molecules to spread out evenly into the available space

b)

Diffusion of solutes

c)

The diffusion of water across a selectively permeable membrane

d)

The ability of a surrounding solution to cause a cell to gain or lose water based on concentration of solute

e)

The control of solute concentrations and water balance and is necessary for life

52.

What is tonicity?

a)

The tendency for molecules to spread out evenly into the available space

b)

Diffusion of solutes

c)

The diffusion of water across a selectively permeable membrane

d)

The ability of a surrounding solution to cause a cell to gain or lose water based on concentration of solute

e)

The control of solute concentrations and water balance and is necessary for life

53.

What is dialysis?

a)

The tendency for molecules to spread out evenly into the available space

b)

Diffusion of solutes

c)

The diffusion of water across a selectively permeable membrane

d)

The ability of a surrounding solution to cause a cell to gain or lose water based on concentration of solute

e)

The control of solute concentrations and water balance and is necessary for life

54.

What is osmosis?

a)

The tendency for molecules to spread out evenly into the available space

b)

Diffusion of solutes

c)

The diffusion of water across a selectively permeable membrane

d)

The ability of a surrounding solution to cause a cell to gain or lose water based on concentration of solute

e)

The control of solute concentrations and water balance and is necessary for life

55.

What is diffusion?

a)

The tendency for molecules to spread out evenly into the available space

b)

Diffusion of solutes

c)

The diffusion of water across a selectively permeable membrane

d)

The ability of a surrounding solution to cause a cell to gain or lose water based on concentration of solute

e)

The control of solute concentrations and water balance and is necessary for life

56.

The diffusion of a substance across a biological membrane down the concentration gradient, which requires no energy is?

a)

Passive transport

b)

Active transport

c)

Facilitated diffusion

d)

Osmosis

57.

Passive movement of molecules across the plasma membrane that is aided by transport proteins

a)

Passive transport

b)

Active transport

c)

Facilitated diffusion

d)

Osmosis

58.

What is the passive transport of the solvent (water)?

a)

Passive transport

b)

Active transport

c)

Facilitated diffusion

d)

Osmosis

59.

The movement of substances against the concentration gradient, which requires energy and transport proteins

a)

Passive transport

b)

Active transport

c)

Facilitated diffusion

d)

Osmosis

60.

Which of the following apply to channel proteins?

a)

provide corridors that allow a specific molecule or ion to cross the membrane

b)

undergo a subtle change in shape that translocate the solute-binding site across the membrane

c)

used in facilitated diffusion

d)

A type of transport protein

61.

Which of the following apply to carrier proteins?

a)

provide corridors that allow a specific molecule or ion to cross the membrane

b)

undergo a subtle change in shape that translocate the solute-binding site across the membrane

c)

used in facilitated diffusion

d)

A type of transport protein

62.

What is isotonic?

a)

when the solute concentration is the same as that inside the cell

b)

when the solute concentration is higher outside of the cell

c)

when the solute concentration is lower outside the cell

63.

What is hypertonic?

a)

when the solute concentration is the same as that inside the cell

b)

when the solute concentration is higher outside of the cell

c)

when the solute concentration is lower outside the cell

64.

What is hypotonic?

a)

when the solute concentration is the same as that inside the cell

b)

when the solute concentration is higher outside of the cell

c)

when the solute concentration is lower outside the cell

65.

If a cell is placed in a hypertonic solution, does it lose or gain water?

a)

the cell loses water

b)

the cell gains water

c)

there is no net water movement across the cell membrane

66.

If a cell is placed in a hypotonic solution, does it lose or gain water?

a)

the cell loses water

b)

the cell gains water

c)

there is no net water movement across the cell membrane

67.

If a cell is placed in a isotonic solution, does it lose or gain water?

a)

the cell loses water

b)

the cell gains water

c)

there is no net water movement across the cell membrane

68.

Check the following that apply, when a plant cell is in a hypotonic solution and swells:

a)

Turgid

b)

Turgor pressure

c)

Flaccid

d)

Plasmolysis

69.

Check the following that apply, when a plant cell is in a hypertonic solution and the membrane pulls away from the cell wall:

a)

Turgid

b)

Turgor pressure

c)

Flaccid

d)

Plasmolysis

70.

Bulk transport is:

a)

when large molecules move across the membrane in bulk via vesicles

b)

requires energy

c)

occurs by exocytosis and endocytosis

d)

is passive transport and does not require energy

71.

In _________ transport vesicles migrate tot he membrane, fuse with it. and release the contents outside of the cell

a)

Exocytosis

b)

Endocytosis

c)

Phagocytosis

d)

Pinocytosis

e)

Receptor-mediated endocytosis

72.

In _________ the cell takes in macromolecules by forming vesicles from the plasma membrane

a)

Exocytosis

b)

Endocytosis

c)

Phagocytosis

d)

Pinocytosis

e)

Receptor-mediated endocytosis

73.

In _________ , binding of molecules to receptors triggers vesicle formation

a)

Exocytosis

b)

Endocytosis

c)

Phagocytosis

d)

Pinocytosis

e)

Receptor-mediated endocytosis

74.

In _________ a cell engulfs a particle in a vacuole. The vacuole fuses with a lysosome to digest the particle.

a)

Exocytosis

b)

Endocytosis

c)

Phagocytosis

d)

Pinocytosis

e)

Receptor-mediated endocytosis

75.

In _________ molecules are taken up when extracellular fluid is 'gulped' into tiny vesicles

a)

Exocytosis

b)

Endocytosis

c)

Phagocytosis

d)

Pinocytosis

e)

Receptor-mediated endocytosis

76.

(a) is the totality of an organism's chemical reactions.

77.

A __________ pathway begins with a specific molecule and ends with a product.

a)

metabolic

b)

catabolic

c)

cellular respiration

d)

anabolic

78.

__________ is the breakdown of glucose in the presence of oxygen, and is an example of a pathway of catabolism

a)

metabolic

b)

catabolic

c)

cellular respiration

d)

anabolic

79.

A __________ pathway releases energy (exergonic) by breaking down complex molecules into simpler molecules

a)

metabolic

b)

catabolic

c)

cellular respiration

d)

anabolic

80.

A __________ pathway consumes energy (endergonic) to build complex molecules from simpler ones.

a)

metabolic

b)

catabolic

c)

cellular respiration

d)

anabolic

81.

What is the first law of thermodynamics?

a)

Energy can be transferred and transformed, but it cannot be created or destroyed

b)

Every energy transfer or transformation increased the entropy (disorder) of the universe

82.

What is the second law of thermodynamics?

a)

Energy can be transferred and transformed, but it cannot be created or destroyed

b)

Every energy transfer or transformation increased the entropy (disorder) of the universe

83.

A state of maximum stability

a)

free energy

b)

spontaneous change

c)

equilibrium

d)

activation energy

e)

catalyst

84.

When free energy decreases and the stability of the system increases

a)

free energy

b)

spontaneous change

c)

equilibrium

d)

activation energy

e)

catalyst

85.

the initial energy needed to start a chemical reaction

a)

free energy

b)

spontaneous change

c)

equilibrium

d)

activation energy

e)

catalyst

86.

A chemical agent that speeds up a reaction without being consumed by the reaction

a)

free energy

b)

spontaneous change

c)

equilibrium

d)

activation energy

e)

catalyst

87.

energy that can do work when temperature and pressure are uniform

a)

free energy

b)

spontaneous change

c)

equilibrium

d)

activation energy

e)

catalyst

88.

Which reactions releases free energy and is spontaneous?

a)

Exergonic

b)

Endergonic

89.

Which reactions absorbs free energy and is not spontaneous?

a)

Exergonic

b)

Endergonic

90.

This forms a series of reactions that regulate the concentration of substances within cells by enzyme-mediated linear and circular sequences

a)

Metabolic pathway

b)

Degradative pathway

c)

Biosynthetic pathway

91.

Small molecules are assembled into large molecules

a)

Metabolic pathway

b)

Degradative pathway

c)

Biosynthetic pathway

92.

Large molecules are broken down to form products of lower energy, releasing energy that can be used for cellular work

a)

Metabolic pathway

b)

Degradative pathway

c)

Biosynthetic pathway

93.

Select all that apply to enzymes:

a)

A catalytic protein

b)

Affect the change in free energy

c)

Lower the activation energy barrier

d)

Is not substrate specific

e)

Activity can be affect by environmental factors

94.

What is the region on the enzyme where the substrate binds?

a)

Active site

b)

Allosteric regulation

c)

Inhibition

d)

Enzyme-substrate complex

95.

When the enzyme binds to its substrate it forms?

a)

Active site

b)

Allosteric regulation

c)

Inhibition

d)

Enzyme-substrate complex

96.

This occurs when a regulatory molecules binds to a protein at one site and affects the protein's function at another site, may either inhibit or stimulate enzyme activity?

a)

Active site

b)

Allosteric regulation

c)

Inhibition

d)

Enzyme-substrate complex

97.

Prevent the enzyme from catalyzing the reaction, there are different types.

a)

Active site

b)

Allosteric regulation

c)

Inhibition

d)

Enzyme-substrate complex

98.

What would be the enzyme name that binds to the substrate fructose?

a)

fructosely

b)

fructise

c)

fructize

d)

fructase

99.

Select which of the following ways an enzyme can lower the activation energy barrier?

a)

orienting substrates correctly

b)

straining substrate bonds

c)

providing a favorable microenvironment

d)

covalently bonding to the substance

e)

All of the above

100.

Select all that apply to enzymes:

a)

shape determines function

b)

are not affect by factors such as temperature and pH

c)

regulation of specific enzymes helps control metabolism

d)

are proteins and can denature

e)

are inefficient in converting molecules in reactions

101.

This prevents a cell from wasting chemical resources by synthesizing more product than is needed, as the end product of the metabolic pathway shuts down the pathway

a)

competitive inhibitors

b)

noncompetitive inhibitors

c)

feedback inhibition

102.

This binds to the active site of an enzyme preventing the substrate from binding

a)

competitive inhibitors

b)

noncompetitive inhibitors

c)

feedback inhibition

103.

This binds to another part of an enzyme, causing the enzyme to change shape and making the active site less effective

a)

competitive inhibitors

b)

noncompetitive inhibitors

c)

feedback inhibition

104.

Reactions where the substance loses electrons in the presence of oxygen

a)

cofactor

b)

coenzyme

c)

oxidation

d)

reduction

105.

Reactions where the substance gains electrons

a)

cofactor

b)

coenzyme

c)

oxidation

d)

reduction

106.

These are nonprotein enzyme helpers

a)

cofactor

b)

coenzyme

c)

oxidation

d)

reduction

107.

An organic cofactor

a)

cofactor

b)

coenzyme

c)

oxidation

d)

reduction

108.

Check all that are correct about ATP:

a)

adenosine triphosphate

b)

powers cellular work

c)

provides energy by synthesizing ATP from ADP

d)

composed of ribose, adenine, and three phosphate groups

e)

the transfer of the ribose group is what provide energy

109.

Select which terms could be used to describe point C:

a)

Exergonic

b)

Endergonic

c)

Biosynthetic Pathway

d)

Degradative Pathway

e)

Water in

110.

Select which terms could be used to describe point D:

a)

Exergonic

b)

Endergonic

c)

Biosynthetic Pathway

d)

Degradative Pathway

e)

Water in

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