Freshy

BIO 2301 UNIT #3 EXAM QUESTIONS AND ANSWERS Homeostatic Responses to High Termperature - ANSWER--vasodilation of cutaneous vessels -sweating -take off clothes Homeostatic Responses to Low Temperature - ANSWER--vasoconstriction of cutaneous vessels -shivering -increased metabolic rate Moderate hypothermia - ANSWER-Confusion, decreased heart rate Profound hypothermia - ANSWER-cardiac arrest Frostbite - ANSWER-decreased blood flow, tissues die Heat Exhaustion - ANSWER--dehydra...

HUMAN ANATOMY AND PHYSIOLOGY- BIOL 2301- FINAL EXAM QUESTIONS WITH CORRECT ANSWERS What is the role of the receptor in homeostasis? - ANSWER-The receptor (sensor) monitors the environment, responds to stimuli (things that cause changes in controlled variables). What is the control center's function in homeostasis? - ANSWER-The control center determines the set point at which the variable is maintained, receives input from the receptor, and determines the appropriate response. Describ...

LECTURE EXAM 1 BIO 230 QUESTIONS AND ANSWERS Joseph Lister - ANSWER- pioneer of antiseptic surgery; promoted idea of sterile surgery created first antiseptic - use of phenol Paul Ehrlich - ANSWER-1910 father of chemotherapy developed salvarsan to treat syphilis Alexander Fleming - ANSWER-1928 discovered first antibiotic - penicillin Charles Chamberland - ANSWER-1884 worked with Louis Pasteur and helped to develop what would become the autoclave Watson and Crick - ANSWER-1953...

BIOL 2301 TEST REVIEW QUESTIONS WITH COMPLETE SOLUTIONS what is the difference between pre-mRNA and mRNA? - ANSWER-pre-mRNA, or primary transcript, can not leave the nucleus. mRNA can leave the nucleus and be translated by ribosomes. what are the three steps pre-mRNA must undergo to become mRNA? - ANSWER-- poly-A tail on the 3' end - 5' cap - splicing to remove introns define polyadenylation signal - ANSWER-the position to add a polyA tail (junk RNA) in RNA processing. serves t...

CSCC BIO 2301 MOGG EXAM QUESTIONS AND ANSWERS Schwann cells - answer-produce myelin in the pns Mechanoreceptors - answer-respond to touch, pressure, vibration, stretch, and itch Thermorecptors - answer-receptors that detect change in temp Nociceptors - answer-receptors that detect pain/damage Chemoreceptors - answer-receptors that detect change in chemical concentrations in the body Ex. Taste buds Photoreceptors - answer-receptors that respond to light Found in neural tun...

CSCC BIO 2301 EXAM #2 QUESTIONS AND ANSWERS pathway of blood through the heart - ANSWER-superior/ inferior vena cava & coronary sinus, right atrium, tricuspid valve, right ventricle, pulmonary semilunar valve pulmonary artery, lung capillaries, pulmonary vein, left atrium, bicuspid valve left ventricle, aortic semilunar valve aorta systemic circulation pulmonary circuit - ANSWER-the right side of the heart brings blood in from the body and sends it to the lungs syst...

BIOLOGY 230 LECTURE EXAM QUESTIONS COMPLETE ANSWERS 8c. What are capillaries? - ANSWER-Capillaries are really small blood vessels that are the site of gas exchange with large surface area throughout your body. 9c. What is interstitial space? - ANSWER-Interstitial space is the fluid between all of your cells. 10c. How do different types of molecules (water, glucose, oxygen, sodium, chloride) cross cell membranes and travel between different organs? - ANSWER-Different molecules travel bet...

CSCC BIO 2301 EXAM 1 QUESTIONS WITH COMPLETE ANSWERS osmosis - ANSWER-net diffusion of water across a membrane. facilitated by aquaporins. * greater the solute conc, lower the water conc *the degree to which the water conc is decreased by the addition of solute is determined by the # of particles added, NOT the chemical nature of the solute Osmolarity - ANSWER-the # of particles that each solute molecules breaks into when placed in water. expressed as osmoles per liter (osmol/L). 1 osmo...

BIOLOGY 230 LECTURE EXAM 4 QUESTIONS AND ANSWERS What are capillaries? - ANSWER-Capillaries are really small blood vessels that are the site of gas exchange with large surface area throughout your body. What is interstitial space? - ANSWER-Interstitial space is the fluid between all of your cells. How do different types of molecules (water, glucose, oxygen, sodium, chloride) cross cell membranes and travel between different organs? - ANSWER-Different molecules travel between different o...

BIOLOGY 2301 EXAM QUESTIONS WITH AND ANSWERS Effective auscultation of the lungs relies on knowledge of which of the following anatomical concepts? - ANSWER-anatomical landmarks Which letter represents the receptor? - ANSWER-body's temperature sensor information that affects the control center Part A Part complete In blood clotting, the platelets __________ to initiate the clotting process. - ANSWER-aggregate AB → A + B is to decomposition as A + B → AB is to - ANSWER-synthes...

BIOLOGY 230 FINAL EXAM QUESTIONS WITH COMPLETE ANSWERS If a codon consists of 3 nucleic acids, how many possible different codons exist? a. 3 b. 16 c. 64 d. 128 e. 8675309 - ANSWER-c. 64 What is the critical adapter component for translation, permitting a conversion from a nucleic acid to an amino acid code? a. DNA b. Pre-mRNA c. Mature mRNA d. tRNA e. Chaperones - ANSWER-d. tRNA What IS (ARE) correct about translation? a. Small subunit binds mRNA b. rRNA recognizes AUG on m...

BIOLOGY 2301 EXAM - STUDY SET CHAPTER, 1-4 QUESTIONS WITH COMPLETE ANSWERS Nervous System Components: brain, spinal cord, nerves, and sensory receptors Functions: rapidly coordinates body functions and enables learning and memory Digestive System Components: mouth, pharynx, esophagus, stomach, intestines, anus, liver, pancreas, and associated structure Functions: Digests food and absorbs nutrients Male Reproductive System Components: testes, vasa deferentia, prostate gland, bulbour...

BIOLOGY 230 EXAM #3 QUESTIONS WITH COMPLETE ANSWERS How do billions of molecules of carbon dioxide become part of the trunk of a tree? - ANSWER-photosynthesis produces glucose; some glucose converted into cellulose and the cellulose contributes to the mass of the tree; carbon dioxide is the original source that created the glucose What does it mean that living things are "carbon-based life forms?" - ANSWER-everything we eat contains carbon, everything we release contains carbon Wh...

BIOL 230 LAB FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS Why is the lacZ- strain not grown in lactose overnight? - ANSWER-Because lacZ- produces an inactive form of B-galactosidase in the presence of lactose. Therefore, it would not make a difference as ONPG would not be converted to ONP in either case. what is the purpose of measuring the absorbance at 600 nm and 430 nm? - ANSWER-The absorbance at 600 nm allows us to measure the cell density (cells/mL). The absorbance at 430 nm allows us...

BIOL 2301 LECTURE EXAM 2 QUESTIONS AND ANSWERS *What type of bone is the femur? - ANSWER-long bone *The opening hole in a bone through which blood vessels, nerves, and ligaments pass? - ANSWER-foramen *Bones in the following protect the brain - ANSWER-cranium *This bone has an S-shape that includes the medial half of the bone being convex anteriorly and the lateral half being concave anteriorly - ANSWER-calvicale *Bone that articulates with the scapula and gleniod cavity - ANSWER-...

BIOL 230 FINAL EXAM REVIEW GUIDE QUESTIONS AND ANSWERS What nutrient is likely to be limiting in an early successional ecosystem? - ANSWER-Nitrogen, because requires nitrogen fixing bacteria to make it available. There is little decomposition occurring yet. Explain why salmon are important to the nitrogen cycle. - ANSWER-They uptake nitrogen from the ocean. This releases nitrate and ammonium into the stream, which is uptaken by phytoplankton, this is then eaten by little fish...bears... br...

BIOL 2301 LAB PRACTICE EXAM QUESTIONS AND ANSWERS Identify one location in the body where pseudostratified columnar epithelium is found. - ANSWER-trachea sperm carrying ducts ducts of large glands upper respiratory tract Identify one location in the body where cardiac muscle tissue is found. - ANSWER-the walls of the heart A plane of section that runs parallel to the long axis of the body and divides it into unequal right and left halves is called a ___________ section. - ANSWER-p...

BIOL 2301 KASPARIAN FINAL EXAM REVIEW QUESTIONS WITH COMPLETE ANSWERS What are the cell bodies associated with nerves in the peripheral nervous system? - ANSWER-ganglia What are the ganglia that integrate somatic sensory stimuli? - ANSWER-dorsal root ganglia What are the ganglia that integrate visceral motor impulses? - ANSWER-autonomic ganglia Macrophages and Schwann cells work together to regenerate tube and growth factors in order to... - ANSWER-regenerate damaged neurons Why a...

BIOL 230 – TEST SET QUESTIONS WITH COMPLETE SOLUTIONS 3 ways phospholipids generate molecular diversity - ANSWER-Head group Length of fatty acid chain Number, position and orientation of double bonds in fatty acids Steroids are which type of organic compound? - ANSWER-lipids saturated lipids have only ___ carbon bonds - ANSWER-single Degree of saturation affects melting point. Unsaturated are ___ at RT, saturated are ___ - ANSWER-liquid, solid 3 components of nucleic acid stru...

BIOL 2301 FINAL EXAM REVIEW QUESTIONS AND ANSWERS Which of the following groups is primarily involved in synthesizing molecules needed by the cell? - ANSWER-ribosome, rough endoplasmic reticulum, smooth endoplasmic reticulum Which of the following categories best describes the function of the rough endoplasmic reticulum? - ANSWER-manufacturing A researcher made an interesting observation about a protein made by the rough endoplasmic reticulum and eventually found in a cell's plasma m...