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WorksheetsAP Biology Exam Review #1
Total questions: 100
Worksheet time: 52mins
The smallest unit of an element that still retains the property of the element.
Cell
Quark
Atom
Proton
Negatively charged particles that are found in shells around the nucleus.
Proton
Neutron
Electron
Isotope
Positively charged particles found in the nucleus of an atom.
Proton
Neutron
Electron
Quark
This type of bond forms when valence electrons are shared by two atoms.
Covalent Bond
Ionic Bond
Hydrogen Bond
Relatively weak bond that forms between the partial positively charged hydrogen atom of one molecule and the negative charged oxygen of another molecule.
Covalent Bond
Ionic Bond
Hydrogen Bond
This property of water allows for the linking of like molecules, i.e. water molecules join to water molecules.
Evaporation
Cohesion
Transpiration
Adhesion
The clinging of one substance to another, i.e. water molecule attached to some other molecule (water droplets to a glass windshield).
Adhesion
Evaporation
Cohesion
Transpiration
Which of the following is NOT a true property of water?
Water has a high specific heat.
Water in ice form will float in liquid water.
Water is less dense as a solid than as a liquid.
Water has a low specific heat.
What is the pH of water?
pH 0
pH 5
pH 7
pH 12
If an aqueous solution has an excess amount of H+ ions (H+ > OH-), it is...
An acid
A base
Neutral
All organic compounds must contain what TWO essential elements? Select TWO choices!
Sulfer
Phosphorous
Hydrogen
Carbon
This process creates polymers from monomers through the removal of H2O.
Dehydration Synthesis
Hydrolysis
The process of adding water to split a large molecule into smaller pieces (polymer --> monomer).
Dehydration Synthesis
Hydrolysis
This macromolecule is responsible for energy storage (i.e. starch & glycogen) and structural support (cellulose & chitin).
Carbohydrates
Proteins
Nucleic Acids
Lipids
This macromolecule is responsible for structural support, enzymes, antibodies supporting the immune system, and support the regulation and expression of DNA & RNA.
Carbohydrates
Lipids
Proteins
Nucleic Acids
This macromolecule is responsible for long term energy storage, protection of vital organs, and insulation.
Carbohydrates
lipids
Nucleic Acids
Proteins
This macromolecule is responsible for storing, transmitting, and expressing hereditary information.
Carbohydrates
Lipids
Proteins
Nucleic Acids
Monosaccharides, such as glucose and ribose, are monomers of what macromolecule?
Carbohydrates
Lipids
Proteins
Nucleic Acids
Amino Acids, such as Valine, are monomers of what macromolecule?
Carbohydrates
Lipids
Proteins
Nucleic Acids
What is the primary structure of a protein?
Alpha Helix & Beta Pleated Sheets
Globular shape resulting from hydrophobic & hydrophilic interactions
The association of two or more polypeptide chains
The unique sequence of amino acids
The unique three-dimensional shapes of a protein, Alpha helixes and Beta pleated sheets, are part of a proteins...
Primary structure
Secondary structure
Tertiary structure
Quaternary structure
A protein that loses its shape due to excess heat, a change in pH, or some other disturbance has...
Broken
Denatured
Decomposition
Renatured
A nucleotide is made of of what THREE components? Select three answers!
Nitrogenous base
Glycerol head
Amino acid
Pentose sugar
Phosphate group
What type of genetic material is typically single stranded, contains the nucleotides A, U, C and G, and has a ribose sugar?
DNA
RNA
What type of bond holds together complementary nitrogenous bases in DNA?
Hydrogen bond
Ionic bond
Covalent bond
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)?
Catabolic pathway
Anabolic pathway
What metabolic pathway is occurring when your body links together amino acids to form muscle protein in response to physical exercise?
Catabolic pathway
Anabolic pathway
What type of energy is stored in molecules such as glucose or glycogen?
Kinetic energy
Potential energy
Chemical energy
What law states that energy cannot be created or destroyed, only transferred or transformed?
First law of thermodynamics
Second law of thermodynamics
Is the breakdown of glucose in cellular respiration exergonic or endergonic?
Exergonic
Endergonic
Which of the following molecules is the primary source of energy for cells?
NAD
NADPH
ATP
FAD
What components make up a molecule of ATP? Select THREE answers!
Nitrogenous base guanine
Ribose sugar
Nitrogenous base adenine
Three phosphate groups
Carboxyl group
Enzymes are made up of what macromolecule?
Carbohydrates
Lipids
Proteins
Nucleic Acids
The name of an enzyme usually contains what suffix?
-ase
-ose
-ol
What biological molecule acts as a catalyst, lowering the amount of activation energy needed for a reaction to take place?
Enzyme
Sugar (glucose)
DNA
Salt
What does "A" represent in the enzyme diagram?
Enzyme
Substrate
Active site
Inhibitor
This enzyme hypothesis suggests that the active sight will tighten (slightly change shape) around the substrate.
Lock & Key Hypothesis
Induced Fit Hypothesis
Enzymes require nonprotein (inorganic) helpers, such as metal ions like zinc or iron, to function properly. These are known as...
Inhibitors
Substrates
Cofactors
Coenzymes
What type of inhibitor competes with the substrate for the active site of the enzyme (it is reversible)?
Competitive Inhibitor
Substrate
Cofactor
Noncompetitive Inhibitor
The enzyme Pepsin has an optimal pH of...
pH 0
pH 2
pH 7
pH 10
The diagram depicts the end product of an enzymatic pathway switching off its own production. This is called...
Competitive Inhibition
Feedback Inhibition
Noncompetitive Inhibition
The inhibitor that is bound to the purple enzyme is binding to the enzymes...
Active Site
Behind Site
Allosteric Site
In an oxidation-reduction reaction, the gain of one or more electrons is...
Oxidation
Reduction
C6H12O6 + 6O2 --> 6CO2 + 6H2O + Energy is the equation for what cellular process?
Photosynthesis
Phosphorylation
Cellular Respiration
Redox Reaction
Which of the following processes take place in cellular respiration?
Glycolysis
The Calvin cycle
Citric Acid Cycle
Oxidative Phosphorylation
Light Reactions
The generation of ATP without the presence of oxygen using an Electron Transport Chain is what type of respiration?
Aerobic Respiration
Anaerobic Respiration
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?
O2
H+
FADH2
NAD+
6CO2 + 6H2O + Solar Energy --> C6H12O6 + 6O2 is the equation for what cellular processes?
Cellular Respiration
Phosphorylation
pre-mRNA Modification
Photosynthesis
The process by which glucose is split into two pyruvate producing two ATP and two NADH.
Chemiosmosis
Electron Transport Chain
Fermentation
Glycolysis
The process by which a proton (hydrogen ion) gradient is used to produce ATP by sending a hydrogen ion through a proton pump.
Chemiosmosis
Electron Transport Chain
Fermentation
Glycolysis
The process by which glucose is split to produce two ATP and lactic acid or ethanol.
Chemiosmosis
Electron Transport Chain
Fermentation
Glycolysis
A series of membrane-embedded electron carriers that ultimately create the hydrogen ion gradient to drive the synthesis of ATP.
Chemiosmosis
Electron Transport Chain
Fermentation
Glycolysis
Photosynthesis takes place in what organelle?
Mitochondria
Lysosome
Chloroplast
Nucleus
photosynthesis light dependent reactions take place in what component of the chloroplast?
Thylakoid
Outer Membrane
Stroma
Inter Membrane space
Light for photosynthesis is absorbed in the thylakoids by what photosynthetic pigment?
Carotenoids
Chlorophyll
Xanthophyll
NADPH is oxidized by the Calvin cycle into NADP+, which means it ___?___ an electron.
Gains
Loses
In the Calvin cycle, CO2 is reduced into what molecule? A.K.A. what is the product of the Calvin cycle?
Rubisco
RubP
G3P
3-PGA
The ultimate goal of photosystems I and II is to produce ___?___ that will be used in the Calvin Cycle.
NAPDH
ATP
Light
H+
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
C4 Plants
CAM Plants
C3 Plants
What process is defined by the addition of a phosphate group to a molecule such as ADP --> ATP?
Carbon Fixation
Redox
Phosphorylation
De-phosphorylation
The exterior of the lower epidermis of a leaf contains tiny pores called ___?___, which allow the exchange of carbon dioxide and oxygen.
Thylakoid
Stomata
Nuclear Pore
Plasmodesmata
In both cellular respiration and photosynthesis, a series of protein-enzyme complexes pass an electron from one area to another, known as?
Chemiosmosis
Photosystem I & II
Electron Transport Chain
Calvin cycle
Which of the following components are found in BOTH prokaryotes and eukaryotes? Select all that apply!
Plasma membrane
Membrane bound organelles
Nucleus
Ribosomes
Lysosomes
What Cellular component is responsible for providing protection for the cell and providing a fixed environment in the cell?
Cytoskeleton
Cell membrane
Peroxisome
Lysosome
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?
Ribosomes
Golgi apparatus
Lysosomes
Vacuole
What organelle is responsible for the synthesis, modification, sorting, and secretion of cellular products?
Mitochondrion
Golgi Apparatus
Smooth Endoplasmic Reticulum
Flagellum
What organelle is responsible for the hydrolysis of macromolecules (i.e. proteins & carbohydrates)?
Chloroplast
Cytoskeleton
Rough Endoplasmic Reticulum
Lysosome
What organelle is responsible for locomotion (present in some eukaryotic [sperm] and prokaryotic cells [E. coli])
Centrosome
Flagellum
Nucleolus
Peroxisome
This cellular structure is found only in plant cells, and act as a channel through cell walls that connect the cytoplasms of adjacent cells.
Plasmodesmata
Chloroplast
Vacuole
Capsule
This cellular component (made of proteins) is responsible for reinforcing a cells shape and aids in cell movement.
Cell Membrane
Flagellum
Cytoskeleton
Cell Wall
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...).
Cell membrane
Capsule
Cell Wall
Capsid
This non-membranous organelle is responsible for the production of ribosomes.
Smooth Endoplasmic Reticulum
Nuclear Envelope
Centrosome
Nucleolus
This organelle is responsible for the synthesis of lipids, the metabolism of carbohydrates, and detoxification of drugs and poisons.
Smooth Endoplasmic Reticulum
Golgi apparatus
Rough Endoplasmic Reticulum
Lysosome
These organelles are responsible for the transport of materials into and out of the cell.
Lysosomes
Ribosomes
Vesicles
Vacuoles
This organelle is found predominantly in plant cells, taking up to 80% of the cell, and is responsible for the storage of materials & wastes.
Golgi apparatus
Central Vacuole
Vesicles
Nucleus
The phospholipids bilayer is composed of a ___(1)___ head and a ___?___ tail.
(1) hydrophobic, (2) hydrophilic
(1) hydrophilic, (2) hydrophobic
What type of transport occurs when molecules are moving from an area of low concentration to high concentration?
Active Transport
Passive Transport
The movement of water across a membrane is...
Facilitated Diffusion
Active Transport
Osmosis
Exocytosis
Water travels through special transport proteins known as...
Aquaporins
Voltage Gated Channels
Ligand Gated Ion Channels
Nuclear Pores
Active transport requires the use of what energy storage molecule?
GTP
NAD+
ATP
NADPH
The following image depicts what type of solution?
Hypertonic Solution
Isotonic Solution
Hypotonic Solution
The following image depicts what type of solution?
Hypertonic Solution
Isotonic Solution
Hypotonic Solution
The following image depicts what type of solution?
Hypertonic Solution
Isotonic Solution
Hypotonic Solution
The sodium-potassium pump is an example of what type of membrane transport?
Active Transport
Passive Transport
Large molecules are moved into the cell membrane through the formation of new vesicles from the plasma membrane in a process called?
Endocytosis
Passive Transport
Exocytosis
The following image depicts what type of cellular transport?
Endocytosis
Passive Transport
Exocytosis
What is the correct order of steps for cellular communication?
Reception, response, transduction
Transduction, reception, response
Reception, transduction, response
Response, transduction, reception
A signaling molecule in cellular communication is known as a...
Enzyme
H+
Ligand
ATP
This type of cell signaling involves long distance communication through the use of hormones (such as epinephrine).
Paracrine Signaling
Endocrine Signaling
Synaptic Signaling
Autocrine Signaling
The purpose of a phosphorylation cascade in cell signaling is...
To receive a ligand
To terminate a response
To amplify a signal
Which of the following enzymes is used to activate a protein by transferring a phosphate group to it?
Helicase
Protein Phosphatase
Cyclic (c)AMP
Protein Kinase
A cancer cell will signal itself to grow and divide. This is known as what type of cell signaling?
Autocrine Signaling
Paracrine Signaling
Juxtacrine Signaling
Endocrine Signaling
During what cellular process will a cell systematically dismantle and hydrolyze?
Denaturation
Apoptosis
Don't pick this its wrong
Termination
What type of molecule is an intracellular signaling molecule that is released by the cell due to exposure to an extracellular signaling molecule?
Primary Messenger
Secondary Messenger
Tertiary Messenger
Quaternary Messenger
What is the most common example of a secondary messenger (intracellular signaling molecule)?
GTP
cAMP
ATP
Kinase
On average, what types of cells are smaller?
Prokaryotes
Eukaryotes
Cells that have a high surface area to volume ratio (SA:V) are more efficient at...
Moving materials around the inside of the cell.
Communicating with other cells.
Cellular division.
Moving materials into and out of the cell.
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)?
Concentration Gradient
Electrochemical Gradient
What biomolecules are made up ONLY of Carbon, Hydrogen, and Oxygen? Select all that apply.
Carbohydrates
Lipids
Proteins
Nucleic Acids
The names of most carbohydrates contain the suffix...
-ase
-ol
-ose
