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47 Cards in this Set
- Front
- Back
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In the hierarchic system of classification, which of the following is the least inclusive?
a. Kingdom b. Class c. Genus d. Species |
species
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After observing an event, you develop an explanation. This statement is referred to as which of the following?
Hypothesis b. Experiment c. Conclusion d. Theory |
Hypothesis
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water is bonded by what type of bond
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covalent
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having a high specific heat
strong cohesive and adhesive properties and amphoteric qualities describes what great attributes of H bond material |
water
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what three things are lipids specifically
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fatty acids, phospholipids, and ketones
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how do phospholipids function in the cell
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they are a component of the plasma membrane
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Which of the biologic molecules are considered the most significant contributor to cellular function?
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protein
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which protein catalyzes different reaction processes
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enzyme
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which biological molecule is inheritance
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nucleic acids
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what is the sum of all chemical reactions that occur in an organism
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metabolism
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n a cell, reactions take place in a series of steps called:
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Metabolic pathways
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Which type of cell contains no defined nucleus?
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Prokaryotic cell
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Which cell organelle functions to transport materials from the endoplasmic reticulum throughout the cell?
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Golgi apparatus
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which of the following are the distinct organelles that produce cell energy? 2 things
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mitochondria and chloroplasts
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What are the two catabolic pathways that lead to cellular energy production?
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Fermentation and cellular respiration
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What is the function of water in photosynthesis?
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c. Supply electrons in the light reactions
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Cells reproduce by different processes, all of which fall into what two catagories?
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Sexual reproduction and asexual reproduction
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describes how a bacterium reproduces
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c. Binary fission
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If you wanted to determine the probability of a genotype, which of the following would you use?
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Punnet swuare
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which term is used to describe the appearance of the organism
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phenotype
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What is the probability that a recessive trait would be expressed in offspring if two parents who are both heterozygous for the desired trait were crossed?
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25%
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Because genetics is the study of heredity, many human disorders can be determined by studying a person's chromosomes or by creating which of the following?
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Pedigree
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why is dna importannt for metabolic activities of the cell
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it controls synthesis of enzymes
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During protein synthesis, what process uses an RNA strand to produce a complementary strand of DNA?
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Transcription
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During the process of transcription, a sequence of RNA is generated in which the RNA base cytosine (C) is inserted complementary to the DNA base guanine (G). Which RNA base is inserted complementary to the DNA base thymine (T)/
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a. Adenine
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what are all metric measurements composed o
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metrix prefix and basic unit of measure
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what is the most common temp scale used in science community
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celsius or centigrade
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what is an atom that is positively charged
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cation
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Which of the following describes the atomic mass?
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c. Average mass of that element's isotopes
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chemical equations are written how
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reactants----->products
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what is the charge of the potassium on KCl
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+1
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catalyst is a substance that accelerates a reaction by which of the following
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Finding an alternate pathway for a reaction that requires less energy
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Percent concentration of a solution is expressed as which of the following?
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Parts per 100 parts
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What will one liter of a molar solution of any element contain?
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The atomic mass in grams of that element
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chemical bonding is bonding of what
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one atom to another atom
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which of the following describes an ionic bond?
It shares electrons b. It does not share electrons c. It is sometimes called a covalent bond d. It is the strongest of all chemical bonds |
it does not share
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What is the concentrationof 58.5 g of NaCl in 2 L of solution (atomic weights of each elements are as follows: Na=23g/mol, Cl=35.5g/mol)?
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. 0.5 mol NaCl
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In a redox reaction, which of the following describes reduction?
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d. It is the gain of electrons
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what are acids
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hydrogen donors
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what are bases
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hydrogen acceptors
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hemical reactions in living systems proceed along catabolic pathways, and there tends to be an increase in which of the following?
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entropy
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Beta radiation is the emission of which of the following?
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An electron
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Which of the following describes lipids?
. They are a major source of fuel for the body immediately after a meal b. They are stored for a source of fuel after carbohydrate depletion c. They are comprised of glycerol and three fatty acids d. They are metabolized by a pathway called glycolysis |
b. They are stored for a source of fuel after carbohydrate depletion
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How could water be boiled at room temperature?
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By lowering the pressure
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What is a combustion reaction?
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It is a reaction that involves oxygen
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Iodine and carbon dioxide undergo sublimation at room temperature and atmospheric pressure. What is this process?
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d. Changing from a solid to a gas
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An experiment is performed to measure the temperature of boiling water at sea level. The actual boiling point is 104.6 C, 104.5 C, and 104.4 C. What term best describes these data?
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b. Precise
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