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Biology 12 Final Exam Review with verified
solutions
Nucleus - correct answer ✔ Double membrane with pores Plasma membrane - correct answer ✔ Separates contents of the cell from surrounding environment Ribosomes - correct answer ✔ Site of protein production Rough Endoplasmic Reticulum - correct answer ✔ System of membrane channels with the nuclear envelope Lysosomes - correct answer ✔ Contain enzymes that modify proteins and lipids Cytoskeleton - correct answer ✔ Consist of three tubes Actin, intermediate and microtubules Mitochondria - correct answer ✔ lysosomes produced ATP Golgi apparatus - correct answer ✔ Main function is to process package and secrete material
Six essential nutrients - correct answer ✔ Carbohydrates, lipids, proteins, water, vitamins, and minerals. Cellular respiration - correct answer ✔ Glucose (carbs) +02 = CO2 +H2O +energy Matter - correct answer ✔ Anything that takes up space and has mass Elements - correct answer ✔ Substances that cannot be broken down to simpler substances with different properties Isotopes - correct answer ✔ Adams of the same element with a different number of neutrons Ionic bonding - correct answer ✔ Ions are charged particles that form when electrons are transferred from one Adam to another Covalent bonding - correct answer ✔ Atoms share electrons along each Atom to have a completed outershell Hydrogen bonding - correct answer ✔ Occurs between a slightly positive hydrogen Adam a limo kill and a slightly negative Adam of another Adam or between Adams of the same molecule Buffers - correct answer ✔ Chemicals or combinations of chemicals that take up excess hydrogen ions or hydroxide ions in order to balance pH
Hydrolysis - correct answer ✔ The process of splitting a bath and a larger molecules by the addition of water Glucose - correct answer ✔ The immediate source of energy in the body Triglyceride - correct answer ✔ A molecule of three glycerol and one fatty acid Hemoglobin - correct answer ✔ A complex proteins that has a quartenary structure Proteins - correct answer ✔ Are polymers of amino acids and sometimes function of an enzyme and have a structural roll Types of membrane proteins - correct answer ✔ Channel proteins, carrier proteins, cell recognition proteins, receptor proteins, enzymatic Osmosis - correct answer ✔ The diffusion of water across a differentially permeable membrane Diffusion - correct answer ✔ The movement of molecules from an area of higher to lower concentration Hydrophilic polar heads - correct answer ✔ Water loving
Hydrophobic nonpolar tails - correct answer ✔ Water fearing Isotonic - correct answer ✔ The solid concentration is equal inside and outside of the cell no net movement, cell remains the same Hypotonic - correct answer ✔ A solution has a lower solute concentration and the inside of a cell H2O goes into cell and cell may nurst Hypertonic - correct answer ✔ A solution has a higher solute concentration and the inside of a cell, h2o may leave the cell and the cell may shrink Pinocytosis - correct answer ✔ Liquids and small particles dissolved in a liquid Phagocytosis - correct answer ✔ Large particulate matter Facilitated transport - correct answer ✔ Does not require carrier proteins Kinetic energy - correct answer ✔ Energy of motion Metabolism - correct answer ✔ The sum of all chemical reactions occurring inside a living cell Energy of activation - correct answer ✔ The amount of energy needed for a reaction to occur, example heat.
