Ap biology Study guides, Class notes & Summaries

AP Biology Exam Review Questions and Answers Matter anything that takes up space and has mass Element A substance that cannot be broken down into simpler substances Compound A substance made up of atoms of two or more different elements joined by chemical bonds Molecule two or more atoms held together by covalent bonds Trace elements An element indispensable for life but required in extremely minute amounts. Atom Basic unit of matter Neutron A subatomic par...

AP Biology Semester 1 Review matter any substance in the universe that has mass and occupies space atoms small particles that make up all matter electrons negatively charged subatomic particles that are transferred and shared between atoms ion a charged particle acid any substance that dissociates in water to increase the concentration of H+ ions; pH values of acids are from 1-7 base any substance that combines with H+ ions when dissolved in water; pH values from ...

AP Biology [Practice AP Exam] Questions and Answers (Graded A) [C] They Include compartments where hydrogen ions are concentrated. [1] Which of the following is true of both mitochondria and chloroplasts? ----------------------------------------------- [A] They are found in the cells of eukaryotic autotrophs and heterotrophs. [B] They include stacks of membranes that absorb light. [C] They Include compartments where hydrogen ions are concentrated. [D] They produce sugars using energ...

AP Biology Exam Questions and Answers Graded A+ What are the 2 theories of evolution? Explain each Gradualism- geologic changes result from slow, gradual, continuous process Punctuated Equilibrium- Long period of stasis punctuated by short bursts of significant change. What was Lamarck's theory and why was it wrong? Lamarck = Inheritance of Acquired characteristics- traits acquired during lifetime could be passed on What is natural selection Comptetition for limited resources re...

AP BIOLOGY Student Exploration: Embryo Development Gizmo Student Exploration: Embryo Development Vocabulary: Blastula, Carnegie stages, differentiation, ectoderm, embryo, embryology, embryonic stem cells, endoderm, fetus, gastrula, inner cell mass, mesoderm, morula, neurula, primitive streak, trilaminar disk, zygote Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. The images below show embryos of different species at different stages of development. Label the images below w...

AP Biology Questions and Answers (Graded A) The resting membrane potential depends on which of the following? I. Active transport II. Selective permeability III. Differential distribution of ions across the axonal membrane A. III only B. I and II only C. II and III only D. I, II, and III D The resting potential depends on active transport (the Na+K+-ATPase pump) and the selective permeability of the axon membrane to K+ than to Na+, which leads to a differential distribution of ...

AP Biology Exam Review (Vocab) Questions and Answers A site holds the tRNA carrying the next amino acid to be added to the chain abiotic non-living Abiotic nonliving. Abscisic acid (ABA) a plant hormone that slows growth, often antagonizing the actions of growth hormones. absorption spectrum the range of a pigment's ability to absorb various wavelengths of light. abyssal zone the deep sea where there is no light Accessory fruits a fruit, or assemblage of fr...

AP Biology Exam Questions and Answers Graded A+ Ligands A molecule that binds specifically to a receptor site of another molecule. Local Regulators A secreted molecule that influences cells near where it is secreted. Biotic Describes living factors in the environment. Abiotic Non-living things keystone species a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically. analogous structures ...

AP Biology Exam Terms Questions and Answers organic compounds contain carbon; examples include lipids, proteins, and carbs functional groups amino (NH2), carbonyl (RCOR), carboxyl (COOH), hydroxyl (OH), phosphate (PO4), sulfhydryl (SH) fat glycerol and three fatty acids saturated fats bad for you; animals and some plants have it; solidifies at room temp. unsaturated fats better for you, plants have it; liquifies at room temp. steriods lipids whose structures resem...

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