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Biology

QuestionAnswer
States that DNA creates RNA which creates proteins Central Dogma
Process of copying DNA before cell division DNA Replication
DNA replication has this property, where it keep one parent strand Semi-Conservative
This strand is synthesized continuously in DNA replication Leading Strand
This strand is synthesized in small, discontinuous Okazaki fragments in DNA replication Lagging Strand
This enzyme combines Okazaki fragments Ligase
These fragments are synthesized along the lagging strand during DNA replication Okazaki Fragments
This enzyme unwinds DNA Helicase
This is created when helicase unwinds DNA Replication Fork
This enzyme synthesizes a short RNA primer as a starting point for DNA polymerase Primase
This enzyme synthesizes new DNA strand by reading from parent DNA and adding complementary nucleotides DNA Polymerase
DNA polymerase reads in this direction 5'-3'
This process creates an mRNA copy of the coding strand by reading the template strand of a DNA segment Transcription
mRNA carries genetic information from the nucleus to this place Cytoplasm
RNA polymerase reads this strand Coding Strand
mRNA is a copy of this strand Non-Coding (Template) Strand
The main enzyme in transcription RNA Polymerase
Three stages of transcription Initiation, Elongation, Termination
Stage of transcription where RNA polymerase binds to a promoter sequence Initiation
Site where RNA polymerase binds to Promoter
Stage of transcription where DNA is unwound and a complementary RNA sequence is built Elongation
Stage of transcription where RNA polymerase reaches a terminator sequence and mRNA is released Termination
Sequences that are removed from mRNA after transcription ends Introns
Two additions to mRNA after transcription in eukaryotes 5' Cap and 3' Poly-A Tail
Process where mRNA is decoded into a sequence of amino acids to form a polypeptide Translation
Location of translation Ribosomes
These codons end translation Stop Codons
Specific codon that starts translation AUG
Trinucleotide sequence that codes for a specific amino acid Codon
Type of RNA that carries genetic information mRNA
Type of RNA that reads codons in mRNA tRNA
Type of RNA that brings in amino acids that correspond with codon-anticodon pairs tRNA
Type of RNA that makes up ribosomes rRNA
These types of bonds hold amino acids together to form proteins Peptide Bonds
Three main sites on ribosomes A (Aminoacyl), P (Peptidyl), E (Exit)
Site on ribosomes where tRNA carrying new amino acids bind to A (Aminoacyl) Site
Site on ribosomes where the tRNA that holds the growing polypeptide binds to P (Peptidyl) Site
Site on ribosomes where tRNA molecules leave after adding their amino acid to the polypeptide chain E (Exit) Site
Inputs of cellular respiration Glucose, 6 Oxygen Gas
Outputs of cellular respiration 6 Carbon Dioxide, 6 Water, 30-32 ATP
First stage of cellular respiration Glycolysis
Location of glycolysis Cytoplasm
Outputs of glycolysis Net 2 ATP, 2 NADH, 2 Pyruvate
Location of Krebs Cycle Mitochondrial Matrix
Pyruvate is first converted into this before Krebs Cycle Acetyl-CoA
Products of Krebs Cycle 2 Carbon Dioxide, 1 ATP, 3 NADH, 1 FADH2
Amount of cycles of the Krebs Cycle per glucose 2
Final stage of cellular respiration Oxidative Phosphorylation
Stages of oxidative phosphorylation Electron Transport Chain, Chemiosmosis
Location of oxidative phosphorylation Inner Mitochondrial Membrane
Stage of oxidative phosphorylation where FADH2 and NADH are oxidized, with the movement of their electrons creating an electrochemical gradient Electron Transport Chain
Final electron acceptor in the electron transport chain Oxygen
Stage of oxidative phosphorylation where proteins flow down their concentration gradient through ATP synthase to produce ATP Chemiosmosis
Most important enzyme in chemiosmosis ATP Synthase
Process performed if oxygen is not present after glycolysis Fermentation
Type of anaerobic respiration performed by yeast Alcoholic Fermentation
Type of anaerobic respiration performed by muscle cells Lactic Acid Fermentation
A variant form of a gene Allele
An allele that is always expressed if it is present Dominant Allele
An allele that is only expressed if there are two of it or if it is the only present allele Recessive Allele
Genetic makeup of an organism when looking at alleles Genotype
Observable characteristics expressed by an organism Phenotype
Having two of the same allele Homozygous
Having two different alleles for the same trait Heterozygous
Mendel's two laws Law of Segregation, Law of Independent Assortment
Mendel's law that states that alleles for different traits are not linked as long as they are not close together on the same chromosome Law of Independent Assortment
Mendel's law that states that alleles for the same characteristic will separate so that each gamete only has one allele for each trait Law of Segregation
Model that shows the possible offspring genotypes of two parents Punnett Square
Genotype ratio of a monohybrid cross 1:2:1
Phenotype ratio of a monohybrid cross 3:1
Genotype ratio of a dihybrid cross 1:2:1:2:4:2:1:2:1
Phenotype ratio of a dihybrid cross 9:3:3:1
Dominance where the expressed phenotype is a mix of both held alleles Incomplete Dominance
Dominance where both alleles are completely and independently expressed Codominance
Taxonomic system was created by this man Carl Linnaeus
Science of naming, defining, and classifying groups of organisms Taxonomy
Taxonomic hierarchy from broadest to most specific Domain, Kingdom, Phylum, Order, Class, Family, Genus, species
System used for naming organisms Binomial Nomenclature
Two parts of binomial nomenclature Genus, species
Three domains of life Bacteria, Archaea, Eukarya
Domain of organisms with peptidoglycan in their cell walls Bacteria
Bacteria cells walls contain this sugar, as compared to archaean cell walls Peptidoglycan
Most widespread and diverse domain of life Bacteria
Extremophiles fall into this domain of life Archaea
Only eukaryotic domain of life Eukarya
Domain of life that humans are in Eukarya
Kingdoms of Eukarya Protista, Fungi, Plantae, Animalia
Model that depicts evolutionary relationships Phylogenetic Tree
Structure on phylogenetic tree with the most recent common ancestor of the clade being analyzed Root
Structure on phylogenetic tree where a species splits Branch Points (Nodes)
Two parts of the nervous system Central Nervous System (CNS), Peripheral Nervous System (PNS)
Part of the nervous system with the brain and spinal cord Central Nervous System (CNS)
Part of the nervous system containing all of the branching nerves in the body Peripheral Nervous System (PNS)
Fundamental unit of the nervous system Neuron
Branch-like extensions on neurons that receive signals from other neurons Dendrites
Part of neurons that contain the nucleus and other organelles Cell Body (Soma)
Long, slender projections on neurons that transmit signals to other neurons Axons
Fatty insulating layer that covers the axon of some neurons Myelin Sheath
Myelin sheaths are produced by these cells in the PNS Schwann Cells
Myelin sheaths are produced by these cells in the CNS Oligodendrocytes
Rapid, temporary change in electric potential across an axon Action Potential
Resting charge states of a neuron Negative Inside, Positive Outside
Protein that allows for the polarization of neurons Sodium-Potassium Pump
State of a neuron where the sodium pump is open and the inside of the neuron is positive Depolarized
State of the neuron where the sodium pump closes and the potassium pump opens, causing the inside to become negative again Repolarized
Stage of polarization where an action potential travels in waves of depolarization and repolarization down an axon Propagation
Gaps in myelin sheaths Nodes of Ranvier
Process where an action potential jumps over nodes of Ranvier Saltatory Conduction
Junctions between neurons Synapse
Released when an action potential reaches an axon terminal Neurotransmitter
Acetylcholine, dopamine, and serotonin are examples of these hormones Neurotransmitters
Inputs of photosynthesis 6 Carbon Dioxide, 6 Water, Light Energy
Outputs of photosynthesis Glucose, 6 Oxygen Gas
Organelle where photosynthesis happens Chloroplasts
Systems of interconnected, membranous stacks in chloroplasts Thylakoids
Name for stacks of thylakoids Grana
Dense, fluid-filled space around thylakoids Stroma
Location of light-dependent reactions Thylakoid Membranes
Inputs of light-dependent reactions Light, Water, ADP, NADP+
Outputs of light-dependent reactions ATP, NADPH, Oxygen Gas
Areas of chloroplasts that excited electrons travel through Photosystems
This molecule is split by photolysis to replace excited electrons in light-dependent reactions Water
Excited electrons go through this to create a proton gradient during light-dependent reactions Electron Transport Chain
Input and output molecule of light-dependent reactions that is reduced/formed by excited electrons NADP+ to NADPH
Location of Calvin Cycle Stroma
Inputs of Calvin Cycle Carbon Dioxide, ATP, NADPH
Outputs of Calvin Cycle G3P, ADP, NADP+
Steps of the Calvin Cycle Carbon Fixation, Reduction, Regeneration
Enzyme used in carbon fixation RuBisCo
RuBisCo attaches carbon dioxide to this molecule in the Calvin Cycle RuBP
Stage of Calvin Cycle that uses RuBisCo Carbon Fixation
Stage of Calvin Cycle that produces G3P using ATP and NADPH Reduction
Stage of Calvin Cycle where one G3P exits and five restart the cycle Regeneration
Process that produces four haploid gamete cells Meiosis
General stage of meiosis that separated homologous chromosomes Meiosis I
Specific stage of meiosis where homologous chromosomes pair up to form a bivalent Prophase I
Specific stage of meiosis where crossing-over happens Prophase I
Process that creates genetic diversity by having genetic information be exchanged between homologous chromosomes Crossing-Over
Specific stage of meiosis where independent assortment happens Metaphase I
Specific stage of meiosis that pulls homologous chromosomes apart Anaphase I
Specific stage of meiosis that produces two haploid cells with a duplicated set of chromosomes Telophase I
General stage of meiosis that separates sister chromatids Meiosis II
Specific stage of meiosis that produces four genetically unique haploid gametes Telophase II
Chambers of the heart Left Atria, Right Atria, Left Ventricle, Right Ventricle
Upper chambers of the heart Left Atria, Right Atria
Chambers of the heart that receive blood Left Atria, Right Atria
Lower, more muscular chambers of the heart Left Ventricle, Right Ventricle
Chambers of the heart that pump blood out Left Ventricle, Right Ventricle
Two circuits of bloodflow Pulmonary Circuit, Systemic Circuit
Circuit that carries deoxygenated blood from the right ventricle to lungs Pulmonary Circuit
Circuit that returns oxygenated blood to the left atrium Pulmonary Circuit
Circuit that carries oxygenated blood from the left ventricle to the rest of the body Systemic Circuit
Circuit that returns deoxygenated blood to the right atrium Systemic Circuit
Complete path of blood flow Vena Cava → Right Atrium → Right Ventricle → Pulmonary Artery → Lungs → Pulmonary Vein → Left Ventricle → Left Atrium → Aorta → Body
Main three types of blood vessels Veins, Arteries, Capillaries
Blood vessels that carry blood away from the heart Arteries
Blood vessels with thick, muscular walls to withstand pressure Arteries
Blood vessels that carry blood towards the heart Veins
Blood vessels with thinner walls that prevent backflow Veins
Smallest blood vessels, being only one cell thick Capillaries
Blood vessels that form vast networks to exchange gases, nutrients, and waste products between blood and body tissue Capillaries
Liquid matrix component of blood Plasma
Three main cell types in blood Red Blood Cells (Erythrocytes), White Blood Cells (Leukocytes), Platelets (Thrombrocytes)
Most numerous type of blood cell Red Blood Cells (Erythrocytes)
Blood cells that contain hemoglobin Red Blood Cells (Erythrocytes)
Red blood cells lack this organelle Nucleus
Scientific name for red blood cells Erythrocytes
Blood cells that defend against pathogens White Blood Cells (Leukocytes)
Scientific name for white blood cells Leukocytes
Blood cell fragments that are essential for blood clotting Platelets (Thrombrocytes)
Scientific name for platelets Thrombrocytes
Type of immunity that is the first defense Innate Immunity
Skin and mucous membranes are these kinds of barriers in the immune system Physical Barriers
Stomach acid and saliva enzymes are these kinds of barriers in the immune system Chemical Barriers
Phagocytosis and inflammation is this kind of defense in the immune system Cellular Defense
This type of immunity is characterized by specificity and memory Adaptive Immunity
Type of immunity mediated by B-cells Humoral Immunity
B-cells differentiate into these cells to produce antibodies Plasma Cells
Plasma cells produce these things Antibodies
This process engulfs antigens marked for deletion Phagocytosis
Type of immunity mediated by T-cells Cell-Mediated Immunity
Type of immunity that targets body cells that have become infected or cancerous Cell-Mediated Immunity (T-Cell Mediated)
These cells activate B cells and T cells Helper T Cells
These cells recognize and kill infected cells by releasing toxins Cytotoxin T Cells
B cells and T cells can sometimes become these types of cells after activation Memory Cells
Sum of chemical reactions that occur within a living organism Metabolism
Metabolic pathways that synthesize complex molecules from simpler ones Anabolic Pathways
Anabolic pathways have these types of reactions Endergonic
Photosynthesis and protein synthesis are these types of metabolic pathways Anabolic
Metabolic pathways that break down complex molecules into simpler ones Catabolic Pathways
Catabolic pathways have these types of reactions Exergonic
Cellular respiration is an example of this type of metabolic pathway Catabolic
Biological catalysts Enzymes
Enzymes speed up reactions by lowering this Activation energy
Location on enzymes where substrate binds Active Site
Molecule that an enzyme acts on Substrate
Model that describes how enzymes and substrates interact Induced-Fit Model
Molecules that resemble a substrate and are able to bind to the active site of enzymes instead of the desired molecule Competitive Inhibitors
Molecules that bind to an allosteric site on enzymes, causing the active site to change shape and lose its specificity Noncompetitive Inhibitors
Parasites made of genetic material in a protein shell Viruses
Proteins shell of parasites Capsid
Name for new virus particles formed by replication Virions
Two types of virus replication Lytic Cycle, Lysogenic Cycle
Quickest cycle for virus replication Lytic Cycle
Type of virus replication where the virus injects its DNA into the host cells DNA Lysogenic Cycle
Viruses with RNA that are still able to go through the lysogenic cycle Retroviruses
Enzyme used by retroviruses to convert their RNA into DNA Reverse Transcriptase
Misfolded proteins found in the brain Prions
Prions lack this Genetic Material
Creutzfeldt-Jakob and Mad Cow Disease are caused by these things Prions
Plant organs that absorb water and nutrients from the environment Roots
Plant organs that transport substance between roots and leaves Stems
Plant organs that are the primary sites of photosynthesis Leaves
Two types of primary vascular tissue in plants Xylem, Phloem
Vascular tissue that transports water and nutrients from the roots to the rest of the plant Xylem
Cells that make up xylem Tracheids, Vessel Elements
Vascular tissue made of dead cells Xylem
Vascular tissue that transport sugar from leaves to the rest of the plant Phloem
Cells that make up phloem Sieve-Tube Elements
Theory that describes water motion in xylem Cohesion-Tension Theory
Process of water evaporating out of stomata in leaves Transpiration
Pores in leaves that water evaporates out of Stomata
Hypothesis that describes sugar motion in phloem Pressure-Flow Hypothesis
Process that creates pressure in phloem Osmosis
Idealistic population growth model Exponential Growth
Shape of exponential growth curves J
Realistic population growth model that accounts for limiting factors Logistic Growth
Population growth rate slows as it approaches this number Carrying Capacity
Shape of logistic growth curve S (Sigmoid)
Maximum population size that can be maintained by the environment Carrying Capacity
Letter that represents carrying capacity K
Type of population limiting factor that is usually biotic Density-Dependent
Type of population limiting factor that is usually abiotic Density-Independent
Ecological interaction that is negative for both species Competition
Principle that states that two competing species cannot exist simultaneously forever, and one with eventually out-compete the other Competitive Exclusion Principle
Ecological interaction where one species kills and eats another, which is positive for one and negative for the other Predation
Types of symbiosis Mutualism, Commensalism, Parasitism
Type of symbiotic relationship that is beneficial for both species Mutualism
Type of symbiotic relationship that is beneficial for one species and neutral for the other Commensalism
Type of symbiotic relationship that is beneficial for one species and negative for the other Parasitism
Process of an ecosystem changing after a disturbance Succession
Type of succession that occurs in a region with no soil Primary Succession
First organisms to colonize a region after it is disturbed Pioneer Species
Most common pioneer species for primary succession Lichens, Mosses
Type of succession that takes hundreds to thousands of years Primary Succession
Type of succession that occurs in a region after a disturbance that still leaves soil Secondary Succession
Most common pioneer species for secondary succession Weeds
Fastest type of succession Secondary Succession
Biological communities that have reached a steady state after succession Climax Communities
Linear sequence of organisms showing energy transfer Food Chain
Group of interconnected food chains describing an entire ecosystem Food Web
Species that has a disproportionately large effect on its environment relative to its abundance Keystone Species
Occurs when an apex predator is removed or added to an ecosystem Trophic Cascade
States that abundance of lower trophs is mediated by actions on higher trophs Top-Down Control
Stages of the nitrogen cycle Fixation, nitrification, assimilation, ammonification, denitrification
Stage of the nitrogen cycle where bacteria turn atmospheric oxygen into ammonia or ammonium Nitrogen Fixation
Nitrogen-fixing bacteria form these mutualistic structures with legume root-nodules Mycorrhiza
Stage of the nitrogen cycle where bacteria turn ammonia into nitrite and then nitrate for plants Nitrification
Stage of the nitrogen cycle plants absorb nitrogen and animals get nitrogen from eating plants and animals Assimilation
Stage of the nitrogen cycle where decomposers break down dead organic matter to return nitrogen to the soil Ammonificiation
Stage of the nitrogen cycle where bacteria convert nitrates back into atmospheric nitrogen Denitrification
Biochemical cycle that doesn't have an atmospheric form Phosphorus Cycle
Three types of biodiversity Genetic, Species, Ecosystem
Biodiversity that describes the number of genetic characteristics present in a population Genetic Biodiversity
Biodiversity that describes the number and relative abundance of species in an ecosystem Species Biodiversity
Biodiversity that describes the variety of habitats, communities, and ecological processes in the biosphere Ecosystem Biodiversity
Belief that humans freely gain from the natural environment continuing to function properly Ecosystem Services
Created by: KatieThiel
 

 



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