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AP Biology Exam Review #1

Total questions: 100

Worksheet time: 52mins

Name
Class
Date
1.

The smallest unit of an element that still retains the property of the element.

a)

Cell

b)

Quark

c)

Atom

d)

Proton

2.

Negatively charged particles that are found in shells around the nucleus.

a)

Proton

b)

Neutron

c)

Electron

d)

Isotope

3.

Positively charged particles found in the nucleus of an atom.

a)

Proton

b)

Neutron

c)

Electron

d)

Quark

4.

This type of bond forms when valence electrons are shared by two atoms.

a)

Covalent Bond

b)

Ionic Bond

c)

Hydrogen Bond

5.

Relatively weak bond that forms between the partial positively charged hydrogen atom of one molecule and the negative charged oxygen of another molecule.

a)

Covalent Bond

b)

Ionic Bond

c)

Hydrogen Bond

6.

This property of water allows for the linking of like molecules, i.e. water molecules join to water molecules.

a)

Evaporation

b)

Cohesion

c)

Transpiration

d)

Adhesion

7.

The clinging of one substance to another, i.e. water molecule attached to some other molecule (water droplets to a glass windshield).

a)

Adhesion

b)

Evaporation

c)

Cohesion

d)

Transpiration

8.

Which of the following is NOT a true property of water?

a)

Water has a high specific heat.

b)

Water in ice form will float in liquid water.

c)

Water is less dense as a solid than as a liquid.

d)

Water has a low specific heat.

9.

What is the pH of water?

a)

pH 0

b)

pH 5

c)

pH 7

d)

pH 12

10.

If an aqueous solution has an excess amount of H+ ions (H+ > OH-), it is...

a)

An acid

b)

A base

c)

Neutral

11.

All organic compounds must contain what TWO essential elements? Select TWO choices!

a)

Sulfer

b)

Phosphorous

c)

Hydrogen

d)

Carbon

12.

This process creates polymers from monomers through the removal of H2O.

a)

Dehydration Synthesis

b)

Hydrolysis

13.

The process of adding water to split a large molecule into smaller pieces (polymer --> monomer).

a)

Dehydration Synthesis

b)

Hydrolysis

14.

This macromolecule is responsible for energy storage (i.e. starch & glycogen) and structural support (cellulose & chitin).

a)

Carbohydrates

b)

Proteins

c)

Nucleic Acids

d)

Lipids

15.

This macromolecule is responsible for structural support, enzymes, antibodies supporting the immune system, and support the regulation and expression of DNA & RNA.

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

16.

This macromolecule is responsible for long term energy storage, protection of vital organs, and insulation.

a)

Carbohydrates

b)

lipids

c)

Nucleic Acids

d)

Proteins

17.

This macromolecule is responsible for storing, transmitting, and expressing hereditary information.

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

18.

Monosaccharides, such as glucose and ribose, are monomers of what macromolecule?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

19.

Amino Acids, such as Valine, are monomers of what macromolecule?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

20.

What is the primary structure of a protein?

a)

Alpha Helix & Beta Pleated Sheets

b)

Globular shape resulting from hydrophobic & hydrophilic interactions

c)

The association of two or more polypeptide chains

d)

The unique sequence of amino acids

21.

The unique three-dimensional shapes of a protein, Alpha helixes and Beta pleated sheets, are part of a proteins...

a)

Primary structure

b)

Secondary structure

c)

Tertiary structure

d)

Quaternary structure

22.

A protein that loses its shape due to excess heat, a change in pH, or some other disturbance has...

a)

Broken

b)

Denatured

c)

Decomposition

d)

Renatured

23.

A nucleotide is made of of what THREE components? Select three answers!

a)

Nitrogenous base

b)

Glycerol head

c)

Amino acid

d)

Pentose sugar

e)

Phosphate group

24.

What type of genetic material is typically single stranded, contains the nucleotides A, U, C and G, and has a ribose sugar?

a)

DNA

b)

RNA

25.

What type of bond holds together complementary nitrogenous bases in DNA?

a)

Hydrogen bond

b)

Ionic bond

c)

Covalent bond

26.

What type of metabolic pathway leads to the release of energy by the breakdown of complex molecules into simpler compounds (i.e. digestive enzymes break down food and release energy)?

a)

Catabolic pathway

b)

Anabolic pathway

27.

What metabolic pathway is occurring when your body links together amino acids to form muscle protein in response to physical exercise?

a)

Catabolic pathway

b)

Anabolic pathway

28.

What type of energy is stored in molecules such as glucose or glycogen?

a)

Kinetic energy

b)

Potential energy

c)

Chemical energy

29.

What law states that energy cannot be created or destroyed, only transferred or transformed?

a)

First law of thermodynamics

b)

Second law of thermodynamics

30.

Is the breakdown of glucose in cellular respiration exergonic or endergonic?

a)

Exergonic

b)

Endergonic

31.

Which of the following molecules is the primary source of energy for cells?

a)

NAD

b)

NADPH

c)

ATP

d)

FAD

32.

What components make up a molecule of ATP? Select THREE answers!

a)

Nitrogenous base guanine

b)

Ribose sugar

c)

Nitrogenous base adenine

d)

Three phosphate groups

e)

Carboxyl group

33.

Enzymes are made up of what macromolecule?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

34.

The name of an enzyme usually contains what suffix?

a)

-ase

b)

-ose

c)

-ol

35.

What biological molecule acts as a catalyst, lowering the amount of activation energy needed for a reaction to take place?

a)

Enzyme

b)

Sugar (glucose)

c)

DNA

d)

Salt

36.

What does "A" represent in the enzyme diagram?

a)

Enzyme

b)

Substrate

c)

Active site

d)

Inhibitor

37.

This enzyme hypothesis suggests that the active sight will tighten (slightly change shape) around the substrate.

a)

Lock & Key Hypothesis

b)

Induced Fit Hypothesis

38.

Enzymes require nonprotein (inorganic) helpers, such as metal ions like zinc or iron, to function properly. These are known as...

a)

Inhibitors

b)

Substrates

c)

Cofactors

d)

Coenzymes

39.

What type of inhibitor competes with the substrate for the active site of the enzyme (it is reversible)?

a)

Competitive Inhibitor

b)

Substrate

c)

Cofactor

d)

Noncompetitive Inhibitor

40.

The enzyme Pepsin has an optimal pH of...

a)

pH 0

b)

pH 2

c)

pH 7

d)

pH 10

41.

The diagram depicts the end product of an enzymatic pathway switching off its own production. This is called...

a)

Competitive Inhibition

b)

Feedback Inhibition

c)

Noncompetitive Inhibition

42.

The inhibitor that is bound to the purple enzyme is binding to the enzymes...

a)

Active Site

b)

Behind Site

c)

Allosteric Site

43.

In an oxidation-reduction reaction, the gain of one or more electrons is...

a)

Oxidation

b)

Reduction

44.

C6H12O6 + 6O2 --> 6CO2 + 6H2O + Energy is the equation for what cellular process?

a)

Photosynthesis

b)

Phosphorylation

c)

Cellular Respiration

d)

Redox Reaction

45.

Which of the following processes take place in cellular respiration?

a)

Glycolysis

b)

The Calvin cycle

c)

Citric Acid Cycle

d)

Oxidative Phosphorylation

e)

Light Reactions

46.

The generation of ATP without the presence of oxygen using an Electron Transport Chain is what type of respiration?

a)

Aerobic Respiration

b)

Anaerobic Respiration

47.

Chemiosmosis, the second stage of oxidative phosphorylation, is the driving force of producing ATP (by ATP Synthase) by transferring ___?___ from the inter-membrane space into the matrix?

a)

O2

b)

H+

c)

FADH2

d)

NAD+

48.

6CO2 + 6H2O + Solar Energy --> C6H12O6 + 6O2 is the equation for what cellular processes?

a)

Cellular Respiration

b)

Phosphorylation

c)

pre-mRNA Modification

d)

Photosynthesis

49.

The process by which glucose is split into two pyruvate producing two ATP and two NADH.

a)

Chemiosmosis

b)

Electron Transport Chain

c)

Fermentation

d)

Glycolysis

50.

The process by which a proton (hydrogen ion) gradient is used to produce ATP by sending a hydrogen ion through a proton pump.

a)

Chemiosmosis

b)

Electron Transport Chain

c)

Fermentation

d)

Glycolysis

51.

The process by which glucose is split to produce two ATP and lactic acid or ethanol.

a)

Chemiosmosis

b)

Electron Transport Chain

c)

Fermentation

d)

Glycolysis

52.

A series of membrane-embedded electron carriers that ultimately create the hydrogen ion gradient to drive the synthesis of ATP.

a)

Chemiosmosis

b)

Electron Transport Chain

c)

Fermentation

d)

Glycolysis

53.

Photosynthesis takes place in what organelle?

a)

Mitochondria

b)

Lysosome

c)

Chloroplast

d)

Nucleus

54.

photosynthesis light dependent reactions take place in what component of the chloroplast?

a)

Thylakoid

b)

Outer Membrane

c)

Stroma

d)

Inter Membrane space

55.

Light for photosynthesis is absorbed in the thylakoids by what photosynthetic pigment?

a)

Carotenoids

b)

Chlorophyll

c)

Xanthophyll

56.

NADPH is oxidized by the Calvin cycle into NADP+, which means it ___?___ an electron.

a)

Gains

b)

Loses

57.

In the Calvin cycle, CO2 is reduced into what molecule? A.K.A. what is the product of the Calvin cycle?

a)

Rubisco

b)

RubP

c)

G3P

d)

3-PGA

58.

The ultimate goal of photosystems I and II is to produce ___?___ that will be used in the Calvin Cycle.

a)

NAPDH

b)

ATP

c)

Light

d)

H+

59.

These types of plants, such as cacti & jade, keep their stomata closed during the day to prevent excess water loss due to a hot, dry climate

a)

C4 Plants

b)

CAM Plants

c)

C3 Plants

60.

What process is defined by the addition of a phosphate group to a molecule such as ADP --> ATP?

a)

Carbon Fixation

b)

Redox

c)

Phosphorylation

d)

De-phosphorylation

61.

The exterior of the lower epidermis of a leaf contains tiny pores called ___?___, which allow the exchange of carbon dioxide and oxygen.

a)

Thylakoid

b)

Stomata

c)

Nuclear Pore

d)

Plasmodesmata

62.

In both cellular respiration and photosynthesis, a series of protein-enzyme complexes pass an electron from one area to another, known as?

a)

Chemiosmosis

b)

Photosystem I & II

c)

Electron Transport Chain

d)

Calvin cycle

63.

Which of the following components are found in BOTH prokaryotes and eukaryotes? Select all that apply!

a)

Plasma membrane

b)

Membrane bound organelles

c)

Nucleus

d)

Ribosomes

e)

Lysosomes

64.

What Cellular component is responsible for providing protection for the cell and providing a fixed environment in the cell?

a)

Cytoskeleton

b)

Cell membrane

c)

Peroxisome

d)

Lysosome

65.

What cellular component is responsible for the production of proteins, being found free-floating in the cytoplasm or fixed to the rough ER & nuclear envelope?

a)

Ribosomes

b)

Golgi apparatus

c)

Lysosomes

d)

Vacuole

66.

What organelle is responsible for the synthesis, modification, sorting, and secretion of cellular products?

a)

Mitochondrion

b)

Golgi Apparatus

c)

Smooth Endoplasmic Reticulum

d)

Flagellum

67.

What organelle is responsible for the hydrolysis of macromolecules (i.e. proteins & carbohydrates)?

a)

Chloroplast

b)

Cytoskeleton

c)

Rough Endoplasmic Reticulum

d)

Lysosome

68.

What organelle is responsible for locomotion (present in some eukaryotic [sperm] and prokaryotic cells [E. coli])

a)

Centrosome

b)

Flagellum

c)

Nucleolus

d)

Peroxisome

69.

This cellular structure is found only in plant cells, and act as a channel through cell walls that connect the cytoplasms of adjacent cells.

a)

Plasmodesmata

b)

Chloroplast

c)

Vacuole

d)

Capsule

70.

This cellular component (made of proteins) is responsible for reinforcing a cells shape and aids in cell movement.

a)

Cell Membrane

b)

Flagellum

c)

Cytoskeleton

d)

Cell Wall

71.

This cellular component is an outer layer of protection that maintains a cell's shape and protects the cell from damage (can be made of cellulose, chitin, peptidoglycan, etc...).

a)

Cell membrane

b)

Capsule

c)

Cell Wall

d)

Capsid

72.

This non-membranous organelle is responsible for the production of ribosomes.

a)

Smooth Endoplasmic Reticulum

b)

Nuclear Envelope

c)

Centrosome

d)

Nucleolus

73.

This organelle is responsible for the synthesis of lipids, the metabolism of carbohydrates, and detoxification of drugs and poisons.

a)

Smooth Endoplasmic Reticulum

b)

Golgi apparatus

c)

Rough Endoplasmic Reticulum

d)

Lysosome

74.

These organelles are responsible for the transport of materials into and out of the cell.

a)

Lysosomes

b)

Ribosomes

c)

Vesicles

d)

Vacuoles

75.

This organelle is found predominantly in plant cells, taking up to 80% of the cell, and is responsible for the storage of materials & wastes.

a)

Golgi apparatus

b)

Central Vacuole

c)

Vesicles

d)

Nucleus

76.

The phospholipids bilayer is composed of a ___(1)___ head and a ___?___ tail.

a)

(1) hydrophobic, (2) hydrophilic

b)

(1) hydrophilic, (2) hydrophobic

77.

What type of transport occurs when molecules are moving from an area of low concentration to high concentration?

a)

Active Transport

b)

Passive Transport

78.

The movement of water across a membrane is...

a)

Facilitated Diffusion

b)

Active Transport

c)

Osmosis

d)

Exocytosis

79.

Water travels through special transport proteins known as...

a)

Aquaporins

b)

Voltage Gated Channels

c)

Ligand Gated Ion Channels

d)

Nuclear Pores

80.

Active transport requires the use of what energy storage molecule?

a)

GTP

b)

NAD+

c)

ATP

d)

NADPH

81.

The following image depicts what type of solution?

a)

Hypertonic Solution

b)

Isotonic Solution

c)

Hypotonic Solution

82.

The following image depicts what type of solution?

a)

Hypertonic Solution

b)

Isotonic Solution

c)

Hypotonic Solution

83.

The following image depicts what type of solution?

a)

Hypertonic Solution

b)

Isotonic Solution

c)

Hypotonic Solution

84.

The sodium-potassium pump is an example of what type of membrane transport?

a)

Active Transport

b)

Passive Transport

85.

Large molecules are moved into the cell membrane through the formation of new vesicles from the plasma membrane in a process called?

a)

Endocytosis

b)

Passive Transport

c)

Exocytosis

86.

The following image depicts what type of cellular transport?

a)

Endocytosis

b)

Passive Transport

c)

Exocytosis

87.

What is the correct order of steps for cellular communication?

a)

Reception, response, transduction

b)

Transduction, reception, response

c)

Reception, transduction, response

d)

Response, transduction, reception

88.

A signaling molecule in cellular communication is known as a...

a)

Enzyme

b)

H+

c)

Ligand

d)

ATP

89.

This type of cell signaling involves long distance communication through the use of hormones (such as epinephrine).

a)

Paracrine Signaling

b)

Endocrine Signaling

c)

Synaptic Signaling

d)

Autocrine Signaling

90.

The purpose of a phosphorylation cascade in cell signaling is...

a)

To receive a ligand

b)

To terminate a response

c)

To amplify a signal

91.

Which of the following enzymes is used to activate a protein by transferring a phosphate group to it?

a)

Helicase

b)

Protein Phosphatase

c)

Cyclic (c)AMP

d)

Protein Kinase

92.

A cancer cell will signal itself to grow and divide. This is known as what type of cell signaling?

a)

Autocrine Signaling

b)

Paracrine Signaling

c)

Juxtacrine Signaling

d)

Endocrine Signaling

93.

During what cellular process will a cell systematically dismantle and hydrolyze?

a)

Denaturation

b)

Apoptosis

c)

Don't pick this its wrong

d)

Termination

94.

What type of molecule is an intracellular signaling molecule that is released by the cell due to exposure to an extracellular signaling molecule?

a)

Primary Messenger

b)

Secondary Messenger

c)

Tertiary Messenger

d)

Quaternary Messenger

95.

What is the most common example of a secondary messenger (intracellular signaling molecule)?

a)

GTP

b)

cAMP

c)

ATP

d)

Kinase

96.

On average, what types of cells are smaller?

a)

Prokaryotes

b)

Eukaryotes

97.

Cells that have a high surface area to volume ratio (SA:V) are more efficient at...

a)

Moving materials around the inside of the cell.

b)

Communicating with other cells.

c)

Cellular division.

d)

Moving materials into and out of the cell.

98.

What type of gradient occurs in the presence of a chemical force and a voltage gradient (i.e. inside of cell is negative, outside of cell is positive)?

a)

Concentration Gradient

b)

Electrochemical Gradient

99.

What biomolecules are made up ONLY of Carbon, Hydrogen, and Oxygen? Select all that apply.

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

100.

The names of most carbohydrates contain the suffix...

a)

-ase

b)

-ol

c)

-ose