SBI4U - Practice Exam Part A: Multiple Choice 1. When organic molecules are joined together and a water molecule is removed‚ the reaction is called which of the following? A. Dehydration synthesis. B. Hydrogenation. C. Hydrolysis. D. Oxidation. What is a nucleotide composed of? A. Nitrogenous base‚ 6 carbon sugar and a phosphate group. B. Nitrogenous base‚ 5 carbon sugar and a phosphorus group. C. Nitrogenous base‚ 5 carbon sugar and a phosphate group. D. None of the above. Enzymes work as catalysts
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Neuromuscular blocking drugs were first used by South American Indians on their arrows to paralyze their prey. During that time neuromuscular drugs were called curare. They were first written about in a letter by a chronicler‚ employed by the Court of King Ferdinand and Queen Isabella‚ in 1516. In the 18th century Edward Bancroft‚ a physician‚ brought samples of curare back from South America and Sir Benjamin Brodie showed how small animals could be left alive after being injected with curare and
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Unit: Coordination and Control The human body is made up of many cells which form and create different tissues and organs within the body. Control and coordination are required to enable all functions within the body to work accordingly and appropriately at the specific times required. The system
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CHAPTER 1 Topic: The Science of Behaviour Textbook Pages: 4-24 THE NATURE OF PSYCHOLOGY Psychology: The Scientific study of behaviour and the mind. Behaviour: Actions and responses that we can directly observe. Mind: Internal states and processes‚ such as thoughts and feelings‚ that cannot be seen directly and that must be inferred from observable‚ measurable responses. Clinical Psychology: Subfield where psychologists study and treat mental disorders. Cognitive Psychology: Specializes
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Mark scheme June 2002 GCE Biology B Unit BYB4 Copyright © 2002 AQA and its licensors. All rights reserved. The Assessment and Qualifications Alliance (AQA) is a company limited by guarantee registered in England and Wales 3644723 and a registered charity number 1073334 Registered address: Addleshaw Booth & Co.‚ Sovereign House‚ PO Box 8‚ Sovereign Street‚ Leeds LS1 1HQ Kathleen Tattersall: Director General klm SECTION A Question 1 (a) GCE: Biology B – BYB4 June 2002 X = grana/lamellae/thylakoid
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ACTIVITY 1: The Resting Membrane Potential Answers 1. The nervous system contains two general types of cells: neuroglia cells and a. nerves. b. cell bodies. c. neurons. d. nephrons. 2. The resting membrane potential of the neuron in this lab under the control conditions was _______ mV. 3. True or False: For most neurons‚ the concentration of Na+ and K+ ions inside and outside the cell are the primary factors that determine the resting membrane potential. 4. Explain why increasing the
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Answer: D 7. Which of the following neurotransmitters functions to relieve pain sensations? a. beta-endorphin b. acetylcholine c. epinephrine d. dopamine Answer: A 8. What is the correct sequence of these events that follow a threshold potential? 1. The membrane becomes depolarized. 2. Sodium channels open and sodium ions diffuse inward.
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and/or from the CNS and visceral organs or structures of the body periphery (Marieb & Mitchell‚ 2009). In this experiment we will work with a nerve The action potential we will see on this experiment reflects the cumulative action potentials of all the neurons in the nerve‚ called a compound nerve action potential. Although an action potential follows the all-or none law within a single neuron‚ it does not necessarily follows the all-or-none law within an entire nerve. When you electrically stimulate
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more to the brain than previously thought. They have learned that inside the brain there is a synapse or an area that is open between the axon of a nerve and the dendrite of another nerve. The synapse entails the neurotransmitters‚ mitochondria‚ postsynaptic ending that has receptors sites for the neurotransmitters‚ and a synaptic cleft. When alcohol is consumed and reaches the brain‚ it can alter neuron membranes‚ ion channels‚ enzymes‚ and receptors. The receptors that alcohol binds to are the
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Roxann Milbourn Case study number 2 March 13‚ 2014 Badfish anatphys Neurotoxin 1. To present the doctor’s notes portion of the case with a description of the following terms or concepts: Diaphoresis- is the medical term for profuse sweating or perspiring. The skin’s sweat glands sweat to aid in fever management. When your body temp rises you autonomic nervous system causes you eccrine glands to secrete fluid onto the surface of the skin where it cools as it evaporates. Motor dysfunction_
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