Biology 12 - The Cell Part A: In ONE sentence‚ in the space provided‚ describe the function of the following organelles. Use point form. Use your own words. Paraphrase and condense the textbook definitions. DO NOT copy any definition or part of a definition. In the box to the left of each definition‚ make a sketch of the organelle. |SEE NOTES |1. cell membrane: control what goes in and out of cell‚ forms barrier with outside environment |
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SHORT-TERM or ACUTE PHYSIOLOGICAL RESPONSES TO EXERCISE: Body Temperature η (Increase) ♣ Working muscles produce heat ♣ Harder and faster = more heat. ♣ Blood transports heat to all parts of the body = warm-up ♣ Body quickly heats up and will overheat – response is to send blood to skin surface for cooling and to produce sweat. ♣ Moisture on the skin cools the body quickly (25x faster than air). ♣ (This why when you get out of the water at the beach or pool – you get cold quickly). ♣ This
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excitation-contraction coupling? 8. What are the parts of the skeletal muscle triad and what are their functions? 9. Explain the cross bridge cycle‚ and why a filaments do not slide back to their original position when a myosin cross bridge detaches from actin. 10. Discuss the roles of calcium in skeletal muscle contraction. 11. What causes rigor mortis? 12. Define a motor unit. 13. Define muscle twitch‚ what are the three phases seen in a twitch diagram. 14. Muscles general exhibit
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tissues‚ histological and morphometric analysis was used to visualize villus height and crypt depth the response to supplementation with the artificial sweetener Sucram. The protein abundance of bovine duodenum sodium-glucose co-transporter 1 and b-actin were performed by Western blotting. Radioactive (U-14C)-d-glucose was used to measure the glucose uptake. Increasing enzymes activities of maltase and alkaline phosphatase in intestine was test by enzyme activity
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Personal Statement Esther Mbiwan Growing up in Cameroon‚ I was deeply aware of the rarity of young women like myself who aspired to go beyond traditional paths and pursue academic excellence in a STEM field. This awareness only intensified once I arrived in the United States‚ where my family members encouraged me to pursue a career in nursing—a stable and respectable profession. My intellectual curiosity and passion for research drove me to seek a different horizon despite the pressures. This led
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How dare he make a mockery of me in front of the entire town like that‚ everyone gone think me trash after that gosh darn Atticus embarrassed me like that‚ how dare he. That man need be taught a lesson‚ who the hell does he think he is treating me like that I ain’t no Negro I am white and equal to him in every way‚ I may be the poorest man in Macomb but I am not nearly as bad as those coloured folk. I expected to be a hero after saving all those women from that rapist‚ But instead I lost all
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Why they all so excited about that insurance money? Since Big Walter passed‚ we’d all known that cheque would come someday. Ten thousand dollars…in my hands. Just a slip of paper in my own bare hands‚ with four zeros written on it‚ clear as clear can be. This money‚ this cheque‚ this one slip of paper‚ could rise this family up‚ or tear it down‚ into pieces‚ pieces and pieces. I don’t know about this money alright‚ it sure will change my family‚ but will it change us for the worse or the better
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In the novel ‘Roll of Thunder’ T.J. Avery is a young black boy who has a younger brother named Claude and two sisters. His family work for Harlan Granger and T.J.’s best friend was Stacey Logan. T.J. is a deceitful‚ chatty‚ lying and arrogant boy. At the end of the novel‚ T.J. is wrongly accused of murder‚ caused by R.W. and Melvin Simms‚ and was beaten up and could possibly go on the chain gang‚ but would most likely die. There are a number of clues in the novel to suggest that T.J. would get into
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Cellular Respiration and Rigor Mortis Cellular respiration is a metabolic process where the body uses organic molecules to produce energy. One of the greatest energy sources that our body uses is glucose. In cellular respiration glucose is broken down‚ and the energy from those bonds is used to create adenosine triphosphate (ATP). There are two types of respiration: aerobic and anaerobic. In aerobic respiration there are 3 main steps: Glycolysis‚ Krebs Cycle (Citric Acid Cycle)‚ and Oxidative Phosphorylation
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neurotransmitter (transmitter substance) found in cholinergic synapses. | |Acetylcholinesterase |An enzyme in the synaptic cleft that breaks down the transmitter substance acetylcholine. | |Actin |A protein found in muscle cells. It is the main component of the thin filaments. | |Action potential |A brief reversal of the resting potential across the cell surface
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