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Comprehensive BIO 161 Q&A Bundle

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Bio 161 Exam 3 Test Questions and Correct Answers

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The brain contains ___% of the body's neural tissue (interneurons) 97 There are about ____ billion neurons in the brain, supported by _____ cells 100;glial How many synapses per neuron 5000 How many synapses in brain 500 trillion Function of oligodendrocytes produce myelin sheaths Function of ...

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Biology 161 Final Exam Questions and Correct Answers

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Life-History Traits have significant features of an organism's life cycle, with particular reference to strategies influencing survival and reproduction Life History traits reflect the reality that organisms must partition limited energy and resources among activity, growth and development, and re...

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BIO 161 FINAL REVIEW QUESTIONS AND CORRECT ANSWERS

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Hydrophobicmolecules that do NOT interact with water Hydrophilicmolecules that can readily interact with water Semi-permeablebarrier that allows some things to enter, but not all Glycerol backboneholds fatty acid chains together Channel proteinallows movement of molecules across cell membrane, D...

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BIO 161 FINAL EXAM STUDY QUESTIONS AND CORRECT ANSWERS

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Define the major motor functions of the skeletal system -skeletal system is a dynamic system of connective tissue and is a balance between production and remodeling -support, protection, movement, electrolyte and acid/base balance, blood cell differentiation Identify the major shapes of bones Flat-...

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BIO 161 Exam 1 Practice Questions and Correct Answers

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4 levels of life cell, tissue, organ, organ system 7 characteristics of life 1. organized (composed of cells) 2. acquire materials and energy (capacity to do work and metabolize) 3. homeostatic 4. reproduce 5. potential for growth 6. have evolutionary history/heredity of traits (adapt and evolve) 7...

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Biology 161 Photosynthesis Review Questions and Correct Answers

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Photosynthesis requires 2 major biochemical processes: 1. energy transduction reactions 2. carbon fixation reactions Light energy is captured and converted to chemical energy energy transduction reactions Carbohydrates are formed from carbon dioxide and water carbon fixation reactions 3 steps in ...

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Bio 161 Cal Poly Cumulative Final Exam Questions and Correct Answers

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Haploid(genetics) an organism or cell having only one complete set of chromosomes, represented as "n" Diploid(genetics) an organism or cell having two sets of chromosomes or twice the haploid number, represented as "2n" Chromatidone of two identical "sister" parts of a duplicated chromosome,...

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Bio 161 Tissues Review Questions and Correct Answers

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Function of Epithelial tissue protection, secretion, absorption, excretion and filtration Function connective tissue binding organs support and protection producing blood cells and are the most vascular What type of fibers are found in connective tissue collagen fibers reticular fibers elastic fib...

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Bio 161 Exam 3 Questions and Correct Answers

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Secretion definition - the process of converting an electrical signal (presynaptic neuron) to a chemical signal (synapse) and then back to an electrical signal (post synaptic neuron) Synaptic Activity - allows neurons to communicate with one another What happens in Secretion? - the release of neur...

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BIO 161 Energy and Enzymes Questions and Correct Answers

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Energy likelihood of a reaction occurring spontaneously - depends on... 1. Pe of molecules in the reaction 2. Amount of disorder in the system Potential energy (pe) stored energy Kinetic energy (ke) energy of motion What are some types of bonds that have high pe? c-c, c-h What are som...

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BIO 161- Chapter 11 Review Questions and Correct Answers

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Predict what would happen to a plant cell if it were treated with an enzyme that digests the cellulose microfibrils Turgor pressure would cause the plant cell to swell until its plasma membrane burst, and the cell would die The ECM fibrous component consists mainly of collagen fibrils, and the grou...

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BIO 161 Exam 4 Ch. 9, 10, 12 Questions and Correct Answers

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Meiosis Type of cell division that reduces the chromosome number from 2n to n. Daughter cells receive the haploid number Diploid (2n) containing two complete sets of chromosomes, one from each parent. the total number of chromosomes. Haploid (n) cell condition where only one type of chromosome is ...

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Biology 161 Exam Chapters 6,7,8 Questions and Correct Answers

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The potential energy that exists in the bonds of ATP or a carbohydrate is called? chemical energy Energy cycles from producers to consumers and back to producers again. false The hydrogen ions are using a membrane, channel protein to cross the membrane. Which type of movement allows the flow of th...

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BIO 161 Chapter 6 Review Questions and Correct Answers

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Why are cells the fundamental units of life? -All organisms are made up of cells. -It is the simplest collection of matter that can be alive. -So structure is correlated to cellular function. -All cells are related by their dissent from earlier cells. What are the basic features shared by all cells...

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Bio 161 Exam 2 Practice Questions and Complete Solutions

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Endomembrane system components 1. Nuclear envelope 2. Endo Reticulum 3. Golgi aparatrus 4. Lysosomes 5. Plasma Membrane 6. Vesicles Endoplasmic Reticulum -extends off the nuclear envelope -a network of membrane bound compartments *rough ER and smooth ER* Exocytosis when a vesicles fuses with the p...

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BIO 161 Study Guide- Questions and Correct Answers

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Distinguish between anatomy and physiology. Anatomy - Study of structure and organization of the body and its parts Physiology - Study of the function of the body and its parts Name and explain characteristics of living things Movement - change in position; internal, external Responsiveness - react...

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Biology 161 Exam Questions and Correct Answers

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Electronegative an atom that strongly pulls shared electrons to itself Partial Charge created due to the asymmetric distribution of electrons in chemical bonds Hydrogen Bond the hydrogen atoms covalently bonded to an oxygen atom (H2O) are attracted to the oxygen atoms of different molecules of wat...

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Bio 161 PSU Final Review (Waters) Questions and Correct Answers

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At the neuromuscular junction, an electrical signal from the motor neuron is translated to a chemical signal and then back to an electrical signal in the muscle cell. What proteins interact with the released chemical to cause the electrical signal in the muscle cell? Cation chemical-gated channels ...

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Bio 161 Dehart, Exam Four Questions and Correct Answers

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Types of muscle tissue skeletal, cardiac, smooth Skeletal muscle tissue Voluntary Striated Multinucleate Attached to bone or fascia (connective tissue) Smooth muscle tissue -involuntary -non striated -mononucleate Cardiac muscle tissue Involuntary Striated Mononucleate Autorhythmic (cells can sel...

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Bio 161 Exam 3 Review Questions and Correct Answers

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Lacrimal glands are classified as ______________ glands. exocrine The tough, protective sclera consists of a high concentration of collagen fibers arranged in random order. This layer is best described as ______________. dense irregular connective tissue The choroid tissue contains melanocytes (se...

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BIO 161 Midterm 2 Exam Questions and Correct Answers

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Glycolysis Glucose to pyruvate Glycolysis occurs in the cytosol Citric acid cycle 2 c pyruvate and H+ move through transporter proteins together into the inter membrane space. Sulfhydryl group on CoA bonds to pyruvate and releases a carbon which forms CO2. 6 NADH, 2 FADH2, 1 ATP oxidative phospho...

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BIO 161 Midterm 2 Exam Questions and 100% Correct Answers

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Photosynthesis reaction 6CO2 + 6H2O + light energy --> C6H12O6 + 6O2 Carbon dioxide + water + light ----> glucose (sugar) + oxygen Oxygen comes from water Structure of a chloroplast organelle for photosynthesis Has double membrane Contains discs called thylakoids Thylakoids contain chlorophy...

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Bio 161 Exam 3 Study Guide- Questions and Correct Answers

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*The Origin of Life* Know the 7 criteria that must be met if something is to be considered alive. have an organized structure (anatomy) contain chemical reactions coordinated to perform vital functions (metabolism) be able to maintain constant internal environment (homeostasis) react to interna...

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BIO 161- Exam 2 Test Questions and Correct Answers

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Which of the following types of neurons will pass through a spinal cord root ganglion?afferent What structures are likely to be found in ganglia?Cell bodies Which part of the neuron typically receives signals from other neurons?Dendrites Schwann cells wrap around what part of a neuron?Axon Based...

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Biology 161 Final Exam Study Guide Questions and Correct Answers

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A localized group of organisms that belong to the same species is called a... population Organisms interacts with their environments, exchanging matter and energy. For example, plant chloroplasts convert the energy of sunlight into... the potential energy of chemical bonds The main source of eneer...

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BIO 161 Exam 1 Practice Questions and Solutions

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Monomer A simple compound whose molecules can join together to form polymers Cation A positively charged ion Anion A negatively charged ion primary protein linear sequence of amino acids secondary protein structure coiling or folding of a polypeptide due to H-bonding between amino acids tertiar...

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Bio 161 Final Exam Questions and Correct Answers

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DNA replication involves... the separation of the two strands of the double helix at a replication fork DNA strands are used as... templates to direct the synthesis of new strands during replication DNA replication is___ semiconservative Semiconservative... means that each daughter DNA molecule c...

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Bio 161 Exam 1 Study Questions and 100% Correct Answers

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Another name for cytosol intracellular fluid Stratum lucidum is present only in the epidermis The interior part (core) of a cell membrane is hydrophilic (can interact with water) False (the core of the lipid bilayer is comprised of hydrophobic fatty acid tails- water or the polar/charged molecules...

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