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Bio Exam 1
Question | Answer |
---|---|
Properties of Life | Order, Response to Stimuli, Reproduction, Adaptation, Growth, Homeostasis, and Energy Processing |
AMMO | Atoms, Molecules, Macromolecules, Organelles |
CTOOO | Cells, Tissues, Organs, Organ Systems, Organisms |
PCEB | Population, Community, Ecosystem, Biosphere |
Induction | small to large |
Deduction | Large to small |
Scientific inquiry for knowledge's sake | Basic science |
Scientific inquiry to problem solve | applied science |
a basic unit of matter that cannot be broken down by normal chemical reactions | atom |
the study of life | biology |
a collection of all ecosystems on Earth | biosphere |
the smallest fundamental unit of structure and function in living things | cell |
a set of populations inhabiting a particular area | community |
a part of an experiment that does not change during the experiment | control |
a form of science that aims to observe, explore, and find things out | descriptive science |
all living things in a particular area together with the abiotic, nonliving parts of that | ecosystem |
an organism with cells that have nuclei and membrane-bound organelles | eukaryote |
the process of gradual change in a population that can also lead to new species arising from | evolution |
a form of science that begins with a specific explanation that is then tested | hypothesis-based science |
a field of science, such as biology, that studies living things | life science |
a large molecule typically formed by the joining of smaller molecules | macromolecule |
a chemical structure consisting of at least two atoms held together by a chemical bond | molecule |
a field of science that studies the physical world, its phenomena, and processes | natural science |
a structure formed of tissues operating together to perform a common function | organ |
the higher level of organization that consists of functionally related organs | organ system |
a membrane-bound compartment or sac within a cell | organelle |
an individual living entity | organism |
a diagram showing the evolutionary relationships among biological species based on similarities and differences in genetic or physical traits or both | phylogenetic tree |
- a field of science, such as astronomy, physics, and chemistry, that studies nonliving matter | physical science |
all individuals within a species living within a specific area | population |
a unicellular organism that lacks a nucleus or any other membrane-bound organelle | prokaryote |
a description, often in the form of a mathematical formula, for the behavior of some | scientific law |
a group of similar cells carrying out the same function | tissue |
a part of an experiment that can vary or change | variable |
The outermost shell of an element wants 8 electrons | octet rule |
Properties of water | Cohesion, surface tension, adhesion, capilliary action |
Water interactions | polar, stabilizes temperature, solvent |
Carbon in life | structural backbone, carbon bonding, chain and rings |
Amino acids on organism | Primary, Secondary, Tertiary and Quaternary protein structures |
Four major types of biological molecules | Carbohydrates, Lipids, Nucleic acids and Proteins |
a substance that donates hydrogen ions and therefore lowers pH | Acid |
the attraction between water molecules and molecules of a different substance | Adhesion |
a monomer of a protein | amino acid |
a negative ion formed by gaining electrons | anion |
a substance that absorbs hydrogen ions and therefore raises pH | Base |
a solution that resists a change in pH by absorbing or releasing hydrogen or hydroxide ions | buffer |
a biological macromolecule in which the ratio of carbon to hydrogen to oxygen is 1:2:1; serve as energy sources and structural support in cells | carbohydrate |
a positive ion formed by losing electrons | cation |
a polysaccharide that makes up the cell walls of plants and provides structural support to the cell | cellulose |
a type of carbohydrate that forms the outer skeleton of arthropods, such as insects and crustaceans, and the cell walls of fungi | chitin |
the intermolecular forces between water molecules caused by the polar nature of water; creats surface tension | cohesion |
a type of strong bond between two or more of the same or different elements; forms | covalent bond |
the loss of shape in a protein as a result of changes in temperature, pH, or exposure to chemicals | denaturation |
a double-stranded polymer of nucleotides that carries the hereditary information of the cell | DNA |
two sugar monomers that are linked together by a glycodsidic bond | disaccharide |
a catalyst in a biochemical reaction that is usually a complex or conjugated protein | enzyme |
a storage carbohydrate in animals | glycogen |
a weak bond between partially positively charged hydrogen atoms and partially negatively charged elements or molecules | hydrogen bond |
describes a substance that dissolves in water; water-loving | hydrophilic |
describes a substance that does not dissolve in water; water fearing | hydrophobic |
a chemical bond that forms between ions of opposite charges | ionic bond |
one or more forms of an element that have different numbers of neutrons | isotope |
a class of macromolecules that are nonpolar and insoluble in water | lipids |
a large molecule, often formed by polymerization of smaller monomers | macromolecule |
single unit or monomer of carbohydrates | monosaccharide |
a type of covalent bond that forms between atoms when electrons are shared equally between atoms, resulting in no regions with partial charges as in polar covalent bonds | nonpolar covalent bond |
a monomer of nucleic acids; contains a pentose sugar, a phosphate group, and a nitrogenous base | nucleotide |
a major constituent of the membranes of cells; composed of two fatty acids and a phosphate group attached to the glycerol backbone | phospholipid |
a long chain of amino acids linked by peptide bonds | polypeptide |
a long chain of monosaccharides; may be branched or unbranched | polysaccharide |
an isotope that spontaneously emits particles or energy to form a more stable element | radioactive isotope |
a single-stranded polymer of nucleotides that is involved in protein synthesis | RNA |
a long-chain hydrocarbon with single covalent bonds in the carbon chain; the number of hydrogen atoms attached to the carbon skeleton is maximized | saturated fatty acid |
a storage carbohydrate in plants | starch |
a type of lipid composed of four fused hydrocarbon rings | steroid |
a fat molecule; consists of three fatty acids linked to a glycerol molecule hydrocarbon chain | triglyceride |
a long-chain hydrocarbon that has one or more than one double bonds in the | unsaturated fatty acid |
a weak attraction or interaction between molecules caused by slightly positively charged or slightly negatively charged atoms | van der Waals interaction |
All living things composed of cells, the cell is the basic unit of life, all cells arise from cells | cell theory |
Regulates passage of substances in order to preserve internal conditions of the cell | plasma membrane |
internal contents of the cell, sight of metabolic reactions | cytoplastm |
protein fibers that help to maintain the shape of the cell | cytoskeleton |
long hairlike structure used for cell mobility | flagella |
short, hair like structures that cover entire surface of plasma membrane in certain areas, move substances along outer surface of cell | cilla |
interacts with endomembrane organelles | endomembrane system |
site of ribosome subunit assembly, houses DNA | Nucleus |
series of interconnected membranous tubules | Endoplasmic Reticulum |
synthesize proteins undergoes modification | RER |
synthesizes carbs, lipids, steroid hormones, detoxes | SER |
flattened membranous sacs, sorts, tags, packages and distributes lipids and proteins | Golgi Apparatus |
Components in plasma membrane that are dynamic in position | phospholipids,proteins and carbohydrates |
Naturally occurring passage of materials not requiring energy because on concentration gradient- the tendency of chemicals to migrate from low to high concentration | passive transport |
the method of transporting material that requires energy | active transport |
a rigid cell covering made of cellulose in plants, peptidoglycan in bacteria, non-peptidoglycan compounds in Archaea, and chitin in fungi that protects the cell, provides structural support, and gives shape to the cell | cell wall |
a large plant cell organelle that acts as a storage compartment, water reservoir, and site if macromolecule degradation | cental vacuole |
a plant cell organelle that carries out photosynthesis | chloroplast |
protein-DNA complex that serves as the chromosomes' building material | chromatin |
structure within the nucleus that comprises chromatin that contains DNA, the hereditary material | chromosome |
the gel-like material of the cytoplasm in which cell structures are suspended | cytosol |
a linkage between adjacent epithelial cells that forms when cadherins in the plasma membrane attach to intermediate filaments | desmosome |
a passive process of transport of low-molecular weight material down its concentration gradient | diffusion |
a gradient produced by the combined forces of the electrical gradient and the chemical gradient | electrochemical gradient |
a type of active transport that moves substances, including fluids and particles, into a cell | endocytosis |
the group of organelles and membranes in eukaryotic cells that work together to modify, package, and transport lipids and proteins | endomembrane system |
a process of passing material out of a cell | exocytosis |
the material, primarily collagen, glycoproteins, and proteoglycans, secreted from animal cells that holds cells together as a tissue, allows cells to communicate with each other, andprovides mechanical protection and anchoring for cells in the tissue | extracellular matrix |
a process by which material moves down a concentration gradient (from high to low concentration) using integral membrane proteins | facilitated transport |
a model of the structure of the plasma membrane as a mosaic of components, including phospholipids, cholesterol, proteins, and glycolipids, resulting in a fluid rather than static character | fluid mosaic model |
describes a solution in which extracellular fluid has higher osmolarity than the fluid inside the cell | hypertonic |
describes a solution in which extracellular fluid has lower osmolarity than the fluid inside the cell | hypotonic |
describes a solution in which the extracellular fluid has the same osmolarity as the fluid inside the cell | isotonic |
an organelle in an animal cell that functions as the cell’s digestive component; it breaks down proteins, polysaccharides, lipids, nucleic acids, and even worn-out organelles | Lysosome |
production of ATP | Mitochondria |
the double-membrane structure that constitutes the outermost portion of the nucleus | nuclear envelope |
the darkly staining body within the nucleus that is responsible for assembling ribosomal subunits | nucleolus |
the total amount of substances dissolved in a specific amount of solution | osmolarity |
the transport of water through a semipermeable membrane from an area of high water | osmosis |
a process that takes particulate matter like macromolecules, cells, or cell fragments that the cell needs from the extracellular fluid; a variation of endocytosis | phacocytosis |
a process that takes solutes that the cell needs from the extracellular fluid; a variation of endocytosis | pinocytosis |
a cellular structure that carries out protein synthesis | ribosome |
a membrane-bound sac, somewhat larger than a vesicle, that functions in cellular storage and transport | vacuole |
Total energy in a closed system is neither lost or gained Entropy constantly increases in a closed system | thermodynamics |
the combination of an acetyl group derived from pyruvic acid and coenzyme A which is made from pantothenic acid (a B-group vitamin) | acetyl CoA |
the cell’s energy currency | ATP |
describes the pathway in which complex molecules are broken down into simpler ones, yielding energy as an additional product of the reaction | Catabolic |
the movement of hydrogen ions down their electrochemical gradient across a membrane through ATP synthase to generate ATP | Chemiosmosis |
a series of four large, multi-protein complexes embedded in the inner mitochondrial membrane that accepts electrons from donor compounds and harvests energy from a series of chemical reactions to generate a hydrogen ion gradient across the membrane | electron transport chain |
describes a chemical reaction that results in products that store more chemical potential energy | endergonic |
the steps that follow the partial oxidation of glucose via glycolysis to regenerate NAD+; occurs in the absence of oxygen and uses an organic compound as the final electron acceptor | fermentation |
the process of breaking glucose into two three-carbon molecules with the production of ATP and NADH | glycosis |
all the chemical reactions that take place inside cells, including those that use energy and those that release energy | metabolism |
the production of ATP by the transfer of electrons down the electron transport chain to create a proton gradient that is used by ATP synthase to add phosphate groups to ADP molecules | oxidative phosphorylation |
a molecule on which the enzyme acts | substrate |
the science of the relationships between heat, energy, and work | thermodynamics |
the specific pattern of absorption for a substance that absorbs electromagnetic radiation | absorption spectrum |
the reactions of photosynthesis that use the energy stored by the light-dependent reactions to form glucose and other carbohydrate molecules | Calvin cycle |
the process of converting inorganic CO2 gas into organic compounds | carbon fixation |
the first stage of photosynthesis where visible light is absorbed to form two energy-carrying molecules (ATP and NADPH) | light-dependent reaction |
the middle layer of cells in a leaf | mesophyll |
an organism capable of synthesizing its own food molecules (storing energy), using the energy of light | photoautotroph |
a distinct quantity or “packet” of light energy | photon |
a group of proteins, chlorophyll, and other pigments that are used in the light-dependent reactions of photosynthesis to absorb light energy and convert it into chemical energy | photosystem |
the opening that regulates gas exchange and water regulation between leaves and the environment | stoma |
a disc-shaped membranous structure inside a chloroplast where the light-dependent reactions of photosynthesis take place using chlorophyll embedded in the membrane’s wavelength- the distance between consecutive points of a wave | thylakoid |
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. | photosynthesis |