Unit 1 questions
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This 3 page Study Guide was uploaded by Kelsey Henderson on Thursday February 11, 2016. The Study Guide belongs to BIO 201 at Montana State University taught by in Spring 2016. Since its upload, it has received 32 views.
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Date Created: 02/11/16
Unit 1 questions 1. A non-polar covalent bond is one that? a. Is a complete transfer of electrons b. A covalent bond where electrons are shared un-equally c. A covalent bond where electrons are shared equally d. A bond where two atoms share two pairs of electrons with each other e. A bond between a hydrogen and a electronegative molecule of two different atoms 2. CHNOPS is an acronym for what six organic molecules? a. Calcium, hydrogen, nitrogen, oxygen, potassium, sulfur b. Carbon, hydrogen, sodium, oxygen, phosphorus, sulfur c. Calcium, hydrogen, nitrogen, oxygen, phosphorus, sulfur d. Carbon, hydrogen, nitrogen, oxygen, phosphorus, sulfur e. Calcium, hydrogen, nickel, oxygen, potassium, sulfur 3. What are three types of monosaccharaides? a. Glucose, galactose, fructose b. Maltose, lactose, sucrose c. Glucose, maltose, fructose d. Sucrose, lactose, fructose e. Fructose, maltose, sucrose 4. Which functional group forms five bonds? a. Hydroxyl b. Phosphate c. Amines d. Carboxylic acid e. Methly 5. What is the function of the Golgi apparatus? a. Modifying, sorting, and packaging proteins for secretion b. Site of protein synthesis c. Creation and storage of lipids and steroids d. Contains DNA & RNA and is responsible for growth and reproduction e. Cellular movement 6. What lipid is synthesized from arachidonic acid? a. Fatty acids b. Glycerides c. Steroids d. Eicosanoids e. Triglycerides 7. A homeostatic imbalance a. Is considered to be the cause of most diseases (A) b. Must be restored by negative feedback mechanisms c. Is when the internal conditions of the body become more stable d. Only occur when positive feedback mechanisms are overwhelmed e. Is helpful in maintaining a healthy immune system 8. The sum of all chemical reactions in the body is termed? a. Homeostasis b. Metabolism c. Dynamic feedback d. Physiology e. Catabolism 9. What is an example of negative feedback in homeostatic regulation? a. When the concentration of carbon dioxide in blood is high, pulmonary respiration is stimulated so that the CO₂ excess can be expelled through expiration b. Blood clot formation c. Milk production of mothers when nursing d. Contractions during birth e. Fever 10. Cystic Fibrosis is a hereditary disorder affecting the exocrine glands. It causes the production of abnormally thick mucus, leading to the blockage of the pancreatic ducts, intestines, and bronchi and often resulting in respiratory infection. The gene that is faulty in cystic fibrosis makes a protein, which is a channel for chloride ions to pass across the cell membrane. What is happening that is causing mucous build up? a. Excess of chloride on one side of the cell membrane causes water to flow across to dilute the concentration dehydrating the other side of the membrane. b. The gene that is faulty in cystic fibrosis activates mechanisms that cause mucous to build up via hormones c. Excess of chloride activates dehydration synthesis of chloride molecules the loss of water results in the cells losing water therefore resulting in the build up mucous d. Bacteria causes dehydration of one side of the cell membrane causing mucous to build up e. None of the above are correct
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