click below
click below
Normal Size Small Size show me how
Biology
| Question | Answer |
|---|---|
| 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 |