Test 1

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Wiggles94
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200149
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Test 1
Updated:
2013-02-12 20:57:49
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bio
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  1. True or False:Something must have all the characteristics of life to be considered alive.
    True
  2. What is a localized group of the same species that can interbreed to produce fertile offspring called? 
    A. individual  
    B. community  
    C. ecosystem
    D. population  
    D. population
    (this multiple choice question has been scrambled)
  3. Which of these categories in the hierarchy of life is the most inclusive? 
    A. ecosystem
    B. community  
    C. organ system  
    D. population  
    E. tissue
    F. molecule  
    A. ecosystem
    (this multiple choice question has been scrambled)
  4. Which of these scenarios demonstrates the biological theme of interaction of organisms with their environment? 
    A. grasshopper eating a leaf  
    B. flat shape of a leaf allows efficient absorption of sunlight  
    C. excess ATP causing a decrease in the production of ATP  
    D. offspring that looks like its parents  
    e. none of the above
    A. grasshopper eating a leaf
    (this multiple choice question has been scrambled)
  5. True or False:
    Evolution is the overarching theme of biology.
    True
  6. To which domain do humans belong? 
    A. Archaea  
    B. Bacteria  
    C. Eukarya  
    d. none of the above
    C. Eukarya
    (this multiple choice question has been scrambled)
  7. Which variable is measured during a scientific experiment? 
    A. independent  
    B. dependent  
    C. standardized  
    d. all of the above  
    e. none of the above
    B. dependent  
    (this multiple choice question has been scrambled)
  8. In an experiment where 100 people are asked to choose their favorite color from a list of 7 different colors, what will the degrees of freedom be for a Chi-square test? 
    A. 1
    B. 99  
    C. 100
    D. 8  
    E. 2  
    F. 7  
    G. 6  
    H. 0  
    G. 6
    (this multiple choice question has been scrambled)
  9. True or False:
    The independent variable in an experiment may have an effect on the dependent variable.
    True
  10. True or False:
    If the p-value in a chi-square test is less than 0.05, then we reject the null hypothesis.
    True
  11. What does the number of protons in an atom determine?
    Atomic number
  12. What is the most common atom in the human body? a. oxygen  b. carbon  c. hydrogen  d. nitrogen  e. calcium
    a. oxygen
  13. What is the charge on an atom with 6 neutron, 6 protons, and 6 electrons a. negative 6  b. positive 6  c. neutral  d. negative 1  e. positive 1
    c. neutral
  14. True or False:
    The energy shell closest to the nucleus in an atom contains electrons with the lowest potential energy.
    True
  15. Which of these types of bonds is the strongest? a. covalent  b. ionic  c. hydrogen  d. all are equally strong
    a. covalent  
  16. Which type of bond consists of two electrons equally shared between the atoms in the bond? a. polar covalent  b. nonpolar covalent  c. ionic  d. hydrogen  e. none of the above
    nonpolar covalent
  17. True or False:
    Hydrogen bonds occur between water molecules while covalent bonds occur within a single water molecule.
    True
  18. True or False:Ionic compounds can often form crystals.
    True
  19. True or False:
    Ice is less dense than water.
    True
  20. Which of these is NOT true about water? a. Water is cohesive.  b. Water is adhesive.  c. Water takes a long time to cool compared to air.  d. Water takes a long time to heat compared to air.  e. All of the above
    e. All of the above
  21. True or False:A solution with a high pH has a relatively high concentration of hydrogen ions.
    False
  22. What are the 4 elements that make up the majority of the human body?
    Carbon, hydrogen, oxygen, and nitrogen
  23. Which functional group is composed of one N and two Hs? a. amino  b. sulfhydryl c. phosphate  d. methyl  e. none of the above
    a
  24. Which of these is/are structural proteins? a. starch  b. glycogen  c. cellulose  d. a & b  e. none of the above
    c. cellulose
  25. True or False:Polysaccharides are made by joining monosaccharides by dehydration synthesis.
    true
  26. Which type of lipid contains a glycerol backbone and three fatty acids? a. triglyceride  b. wax  c. steroid  d. phospholipid
    a. triglyceride
  27. True or False:Phospholipids contain a polar head group and a nonpolar tail.
    true
  28. True or False:Cholesterol is the precursor molecule for the steroid hormones.
    true
  29. True or False:Cholesterol is the precursor molecule for the steroid hormones.
    true
  30. How many unique proteins can be made from a chain of amino acids that is 3 amino acids long? a. 1  b. 3  c. 20  d. 8,000  e. none of the above
    d. 8,000
  31. Which of these components is the same in every amino acid? a. R group  b. carboxyl group  c. hydrogen  d. amino group  e. a & c  f. b, c, & d  g. All are unique in every amino acid.
    f
  32. In which structural level do the R groups of amino acids interact to cause folding? a. primary  b. secondary  c. tertiary  d. quaternary
    c. tertiary
  33. Which molecule is the energy currency of cells? a. carbohydrates  b. lipids  c. proteins  d. DNA  e. ATP
    e. ATP
  34. True or False:DNA and RNA contain the same sugar.
    false
  35. True or False: Muscle cells contain a lot of mitochondria because they need a lot of energy to function.
    true
  36. What is the site of aerobic cellular respiration in cells? a. mitochondria b. chloroplasts  c. Golgi apparatus  d. peroxisomes  e. ribosomes
    a. mitochondria
  37. What is/are the main function/s of the cytoskeleton a. support  b. motility  c. regulation  d. a, b, & c  e. a & b  f. none of the above
    d. a, b, & c
  38. Which are the thickest elements of the cytoskeleton? a. microfilament  b. microfiber  c. intermediate fiber
    b. microfiber
  39. Which of these are tenets of cell theory? a. all cells come from pre-existing cells  b. the cell is the fundamental unit of life  c. all organisms are composed of cells  d. a, b, & c  e. a & b  f. a & c
    d. a, b, & c
  40. True or False:Eukaryotic cells are more efficient than prokaryotic cells because they have compartments called organelles.
    true
  41. How much bigger are typical eukaryotic cells than prokaryotic cells? a. 0X, they are the same size b. 1-10X  c. 10-100X  d. 100-1000X  e. 1000-10,000X
    c. 10-100X
  42. True or False:Surface area increases faster than volume as cell size gets larger.
    false

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