study guide test one

study guide test one - PROPERTIES OF LIFE* A redwood tree...

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PROPERTIES OF LIFE** A redwood tree lives for a thousand years, a cactus may live to be 500 years old and humans live to be 118. What factors determine the longevity of these structures? Purely chromosomal inheritance Chromosomal inheritance + unfriendly environment. Chromosomal inheritance+ environment Unfriendly environment turning to a friendly environment Bioavailability of various free radicals in large amounts Reproduction is controlled by? external factors only-such as sunlight Internal factors only: such as DNA and RNA Is controlled by both external and internal processes. Is controlled primarily by the amount of fat that is stored in humans. Is controlled by protein, carbohydrate and lipid levels in the body but not by the chromosomes which are made up of DNA and RNA. Evolution involves the production of which kind of new biological molecules? Proteins in the form of enzymes Carbohydrates Lipids Enzymes are composed of : Carbs Proteins Lipids Nucleotides ATP powers which process or processes? catabolism and anabolism only catabolism only anabolism neither of them Our species, Homo sapiens, is considered unique in that it ? reproduces communicates recognizes faces over-ride feedback loops of self survival always obeys feedback loops of self survival Anabolism is gain of electrons a metabolic process that synthesizes large molecules from smaller molecules the ability of a cell to maintain a constant internal environment the breakdown of larger molecules into smaller molecules Evolution is defined in its more general way as ? Development of new species determined by energy demands Development of new species determined by chromosomes
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Development of new species determined by interaction of chromosomes and environmental factors Development of new species from older ones determined primarily by environmental factors CELLS** Heart cells contain nicotine receptors. False. Fat cells contain nicotine receptors. True. Nicotine attaches to the receptors. There is no such thing as nicotine receptors. False. Brain cells contain nicotine receptors. True. There are nicotine receptors in the heart, brain, and fat cells When you feel happy, a chemical is released in the brain that goes to your pleasure center. For this chemical to have its effect, it must interact originally with which of the following? plasma membrane receptor endoplasmic reticulum golgi body nucleus mitochondria Cells in the prostate continue to grow in a 22 year old male. They break through the prostate lining and travel throughout the body. For the cells to develop and reproduce, which cell organelle directs this activity? Oxygen
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study guide test one - PROPERTIES OF LIFE* A redwood tree...

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