Cell Unit Notes I. Life Processes - What makes something living? A. Biotic: Having life’s conditions Abiotic: Not having life’s conditions Homeostasis: The condition of maintaining a constant internal environment in living organisms. B. Characteristics of living Organisms (LIFE) 1. Nutrition - Food for energy and body (cell) repair and development 2. Transport - Move materials were needed in organism 3. Respiration - Able to generate energy for life processes
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Chapter 1: Intro Independent Variable - variable you deliberately change during an experiment Theory - explanation based on a large number of experiments Hypothesis - educated prediction of cause and effect - what you test in an experiment Control - a zero or set form of the independent variable Dependent - variable you measure because you think it could change 7 characteristics: order‚ regulation‚ growth and development‚ energy processing‚ response to the environment‚ reproduction‚ evolutionary
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Cell Structure and Function Study Guide A Key Concept Cells are the basic unit of life. Vocabulary Main Idea: Early studies led to the development of the cell theory. Match each scientist in the table with the statement listed below that describes what he did to help develop the cell theory. a. concluded that animals and‚ in fact‚ all living things are made of cells. b. was the first to identify cells and name them. c. proposed that all cells come from other cells. d. concluded that
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more negative and it decreases. 2) If a plant cell has a lower water potential than its surrounding environment and if pressure is equal to zero‚ is the cell hypertonic (in terms of solute concentration) or hypotonic to its environment? Will the cell gain water or lose water? Explain your response. The surrounding environment is hypotonic‚ which causes it to gain water. The cell will have less water than the surrounding environment. 3) In Figure 1.5‚ the beaker is open to the atmosphere. What
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this lab‚ we are going to observe the difference in freezing point between pure water and salt water. We will also observe the permeability of an egg shell membrane and dialysis tubing‚ acting in place of a human cell‚ when placed into a hypertonic or hypotonic solution. We will observe the changes in size‚ shape‚ and characteristic. Materials and Methods: First we begin this experiment by making an ice bath in the 100mL beaker. I filled a test tube with room temperature distilled water and
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potato has a sucrose percentage of about 8%. In this experiment‚ the change in mass decreased from 1.2% to -3.1% where it was losing mass between the concentrations of 7.5% and 10%. This means that somewhere between 7.5% and 10% the solution becomes hypertonic to the potato‚ and so water starts to leave the potato. This would be the sucrose percentage. On the graph “The Group Average Effect of Sucrose Solution Concentration on the Percent Change in Mass in White
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ANATOMY Anatomy‚ Physiology‚ & Pathophysiology Roots‚ Prefixes‚ and Suffixes 1. a- without or absence of: (asepsis‚ avascular tissue) 2. ab- away from: (abduction) 3. acro- top or end: (acromion process) 4. ad- to or towards: (adduction‚ adductor muscle) 5. aesth – feeling: anesthesia) 6. –algia pain: (neuralgia) 7. ambi- both: (ambidexterous) 8. amubl- walk: (ambulatory) 9. an- without: (anaerobic respiration) 10. ante- before‚ in front of: (antecerebellar)
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GENERAL PRINCIPLES OF DISORDERS OF WATER BALANCE (HYPONATREMIA AND HYPERNATREMIA) AND SODIUM BALANCE (HYPOVOLEMIA AND EDEMA) Literature review current through: Sep 2013. | This topic last updated: ene 15‚ 2013. 1. INTRODUCTION — The plasma sodium concentration is regulated by changes in water intake and excretion‚ not by changes in sodium balance. hyponatremia is primarily due to the intake of water that cannot be excreted hypernatremia is primarily due to the loss of water that has not
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would be hypertonic. This projection was initially made through deduction. Syrup is a highly viscous solution in comparison to dihydrogen monoxide; however‚ it is mundane erudition that syrup contains dihydrogen monoxide. Most living organisms are virtually entirely composed of dihydrogen monoxide‚ such as humans‚ so it was surmised chickens were equipollent. Hence‚ it was deduced that there would be more dihydrogen monoxide in the egg‚ than in the syrup-making the maple syrup hypertonic. Dihydrogen
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from the damaged cells. 3.3 Hypertonic solutions are sometimes infused intravenously into the bloodstream of patients who are edematous (swollen because their tissues retain water). This is done to draw excess water out of the extracellular space and move it into the bloodstream so the kidneys can eliminate it. Hypotonic solutions may be used (with care) to rehydrate the tissues of extremely dehydrated patients. In mild cases of dehydration‚ drinking hypotonic fluids (such as apple juice and
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