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Exam 1 Review BIOL 1107

Quiz by aubrie scruggs

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50 questions
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  • Q1

    What is the basic unit of life?

    Prokaryote

    Cell

    Archaea

    Bacteria

    30s
  • Q2

    What is an organelle that all cells have?

    Mitochondria

    Chloroplasts

    Membrane

    Nucleus

    30s
  • Q3

    What do chromosomes contain?

    Proteins

    RNA

    DNA

    Carbohydrates

    30s
  • Q4

    What do genes do?

    All of these

    Become inherited through generations

    Encode information for building molecules within the cell

    Direct the development of an organism

    30s
  • Q5

    What is the central dogma created through gene expression?

    mRNA>DNA>proteins

    DNA>mRNA>proteins

    DNA>proteins>mRNA

    Proteins>mRNA>DNA

    30s
  • Q6

    Where does all energy come from originally?

    Sun

    Decomposers

    Photosynthesis

    Cellular Respiration

    30s
  • Q7

    What is the difference between negative and positive feedback?

    Positive feedback is more common than negative feedback.

    Negative feedback stimulates production while positive feedback inhibits production

    Negative feedback inhibits production while positive feedback stimulates production.

    In negative feedback, an end product affects the original process while in positive feedback, it does not.

    30s
  • Q8

    Which of these is not one of the three domains of life?

    Bacteria

    Eukarya

    Animalia

    Archaea

    30s
  • Q9

    Which of these is not a subatomic particle?

    Water

    Neutrons

    Protons

    Electrons

    30s
  • Q10

    Which subatomic particle is negatively charged?

    Electrons

    Neutrons

    Protons

    Electronegativities

    30s
  • Q11

    Which element in the human body and its percentage are correctly matched?

    Carbon  - 3%

    Nitrogen - 65%

    Hydrogen - 10%

    Oxygen - 19%

    30s
  • Q12

    What makes up an atomic mass?

    Protons and neutrons

    Protons and electrons

    Neutrons and electrons

    The number of valence shells

    30s
  • Q13

    Which subatomic particle number changes within an isotope?

    All of these

    Protons

    Electrons

    Neutrons

    30s
  • Q14

    If a 2000g substance has a half-life of 100 years, how much is left after 50 years?

    1500g

    0g

    1750g

    1000g

    30s
  • Q15

    Where is the highest potential energy level found in an atom?

    The first electron shell

    The valence shell

    The atomic nucleus

    The protons

    30s

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