– how molecules move in environment 11. Difference between passive and active transport 12. 3 types of passive transport a. Simple diffusion a.i. Examples in humans b. Osmosis b.i. 3 types of environments cells can be in b.i.1. Istonic b.i.2. Hypotonic b.i.3. Hypertonic b.ii. What happens to animal cells in these 3 environments c. Facilitated diffusion c.i. Why these molecules need help 13. Active transport a. Understand basics of sodium-potassuim pump b. Where sodium goes vs where
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Part 1 Part 1 of the experiment investigated the effect of different temperatures on beetroot cell membranes (a type of plant cell). Through this experiment‚ the process of diffusion and osmosis was in action. Various temperatures ranging from low temperatures to high temperatures such as -5⁰C‚ 5⁰C‚ 30⁰C‚ 50⁰C and 80⁰C were used to investigate the temperature effects on beetroot cell membranes. The hypothesis predicted that the higher the temperature the darker the beetroot substance and the lower
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palms‚ soles and fingertips. 2. the combination of collagen and elastic fibers in the reticular region of the dermis provides the skin with strength‚ extensibility and elasticity. 3. Modified sweat glands in the ear are called ceruminous. 4. The pigments that give the skin a wide variety of colors are melanin and carotene Choose the one best answer to the following questions: 5. The substance that prevents excessive evaporation of water from the skin‚ keeps the skin soft and pliable
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Name: ________________________ Class: ___________________ Date: __________ ID: A GENERAL BIOLOGY PRACTICE MIDTERM TEST 2010-2011 Multiple Choice: Identify the choice that completes the statement or answers the question. ____ 1. The work of scientists usually begins with a. testing a hypothesis. b. careful observations. c. d. creating experiments. drawing conclusions. ____ 2. What is the term for all parts of Earth inhabited by living things? a. population b. ecosystem c. biosphere
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sacs.The alveoli can be greatly useful when oxygen move from the outside of the capillary into the blood vessels like the capillaries.When the oxygen have diffused into the blood vessel‚ red blood cells will carry the oxygen because of they have a pigment called hemoglobin that have an increased concave surface area to carry
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main roles. Firstly it contains all the cells genetic information. Secondly it coordinates the cell’s activities‚ which include growth‚ intermediary metabolism‚ protein synthesis‚ and reproduction (cell division). Chloroplasts Contain a green pigment known as chlorophyll which absorbs light energy (needed in the plants food making process of photosynthesis.) It does this by converting the water and carbon dioxide‚ found in the cell‚ into sugars and carbohydrates. Therefore the chloroplasts covert
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technicians and factories face‚ inket printer product overview. Article: From year 2000‚ when the first machines for inkjet decoration of tiles were shown at Cevisama in Spain‚ there has been a steady evolution of mechanical and electronics‚ inks‚ pigments and chemicals. Of course‚ strong competition among different companies has been a catalyst for this. Currently several companies are competing to develop new machines able to decorate tiles 24 hours-a-day at 30-50 m/min (1000-1500 m2/hour output
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Week 1 Chapter 1 1. What is the basic difference between anatomy and physiology? (p. 2) ANSWER: Anatomy (a-NAT-ō-mē; ana- = up; -tomy = process of cutting) is the science of structure and the relationships among structures. Physiology (fiz′-ē-OL-ō-jē; physio- = nature‚ -logy = study of) is the science of body functions‚ that is‚ how the body parts work. 2. Define each of the following terms: atom‚ molecule‚ cell‚ tissue‚ organ‚ system‚ and organism. (p. 6) ANSWER: AtomUnit of matter that makes
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these) (you are not responsible for the Fick equation) 1. intracellular fluid = where most of the water is 2. extracellular fluid = plasma + interstitial fluid 3. fluids & solutes move among compartments via osmosis‚ pressure gradients‚ passive diffusion‚ & active transport II. 40.2: Form & function are correlated at all levels. A. The relationship between surface area & volume (the SA/V ratio): volume increases much faster than SA.
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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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