Semester 1 Test Review (2 Of 3)

30 Questions | Total Attempts: 273

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Semester 1 Test Review (2 Of 3)

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Questions and Answers
  • 1. 
    A scientist plants two rows of corn for experimentation. She puts fertilizer on row 1 but does not put fertilizer on row 2. Both rows receive the same amount of water and light intensity. She checks the growth of the corn over the course of 5 months. What is one controlled variable in this experiment?
    • A. 

      Amount of fertlizer given to experimental group

    • B. 

      Growth of corn

    • C. 

      Type of fertilizer

  • 2. 
    Which sentence best describes the importance of using a control group?
    • A. 

      When you use a control group you don't need a large sample size.

    • B. 

      When you have a control group you don't have to do any calculations.

    • C. 

      Control groups allow you to compare those recieving the variable and those that are not.

  • 3. 
    What does Abiotic Factor mean?
    • A. 

      All the living parts of an ecosystem.

    • B. 

      All the consumers of an ecosystem.

    • C. 

      All the nonliving parts of an ecosystem.

  • 4. 
    An example of a consumer in a pond ecosystem is:
    • A. 

      Water lily

    • B. 

      Algae

    • C. 

      Reed

    • D. 

      Frog

  • 5. 
    In an energy pyramid, the lowest level has: 
    • A. 

      Less energy than the top level

    • B. 

      Less energy than the second level

    • C. 

      More energy than the top level

    • D. 

      The same amount of energy is available to a consumer

  • 6. 
    An animal that eats only plants is a :
    • A. 

      Primary consumer

    • B. 

      Secondary consumer

    • C. 

      Teritary consumer

    • D. 

      Primiary producer

  • 7. 
    What is, in plants, the rigid barrier that surrounds the outside of the plasma membrane, is made of cellulose, and provides support and structure to the cell?
    • A. 

      Flagellum

    • B. 

      Cell wall

    • C. 

      Centriole

    • D. 

      Nucleolus

  • 8. 
    What is the membrane-bound vesicle for temporary storage of materials such as food, enzymes, and wastes?
    • A. 

      Vacuole

    • B. 

      Golgi apparatus

    • C. 

      Cytoskeleton

    • D. 

      Ribosome

  • 9. 
    What is, in eukaryotic cells, the central, membrane-bound organelle that manages cellular functions and contains DNA?
    • A. 

      Ribosome

    • B. 

      Chloroplast

    • C. 

      Ribosome

    • D. 

      Nucleus

  • 10. 
    What is a double-membrane organelle that captures light energy and converts it to chemical energy through photosynthesis
    • A. 

      Nucleolus

    • B. 

      Mitochondria

    • C. 

      Chloroplast

    • D. 

      Ribosome

  • 11. 
    What is a simple cell organelle that helps manufacture proteins?
    • A. 

      Cell

    • B. 

      Ribosome

    • C. 

      Lysosome

    • D. 

      Mitochondria

  • 12. 
    The water molecule is _________, because there is an uneven distribution of electron within the molecule.
    • A. 

      Uneven

    • B. 

      Weird

    • C. 

      Polar

    • D. 

      Strange

  • 13. 
    A pure substance made up of only one kind of atom
    • A. 

      Molecule

    • B. 

      Compound

    • C. 

      Element

    • D. 

      Isotope

  • 14. 
    All of these are major organic compounds except
    • A. 

      Carbohydrates

    • B. 

      Lipids

    • C. 

      Proteins

    • D. 

      Acids

  • 15. 
    All the above are Inorganic except
    • A. 

      Acids

    • B. 

      Bases

    • C. 

      Salts

    • D. 

      Proteins

  • 16. 
    Central core of atom
    • A. 

      Nucleus

    • B. 

      Neutron

    • C. 

      Proton

    • D. 

      Atomic Mass

  • 17. 
    Fats and oils
    • A. 

      Phospholipids

    • B. 

      Lipids

    • C. 

      Energy

    • D. 

      Glycerol

  • 18. 
    Number of protons and neutrons in the nucleus
    • A. 

      Chemical elements

    • B. 

      Nucleic acid

    • C. 

      Protein

    • D. 

      Atomic mass

  • 19. 
    A pH less than 7 is a
    • A. 

      Acid

    • B. 

      Base

    • C. 

      Neutral

    • D. 

      Chemical

  • 20. 
    Water is made of 1 oxygen molecule and _____ hydrogen atoms.
    • A. 

      3

    • B. 

      2

    • C. 

      1

    • D. 

      5

  • 21. 
    The main pigment in leaves i
    • A. 

      Chlorophyll

    • B. 

      Chloroplasts

    • C. 

      Plastids

    • D. 

      Carotonoid

  • 22. 
    The main products of photosynthesis are:
    • A. 

      Glucose and water

    • B. 

      Water and carbon dioxide

    • C. 

      ATP and NADPH

    • D. 

      Glucose and oxygen

    • E. 

      Oxygen and water

  • 23. 
    What gas is given off by plants?
    • A. 

      Carbon Dioxide

    • B. 

      Oxygen

    • C. 

      Nitrogen

    • D. 

      Hydrogen

  • 24. 
    Green plants make their own food through a process known as...
    • A. 

      Electrolysis

    • B. 

      Chemical Properties

    • C. 

      Preparation

    • D. 

      Photosynthesis

  • 25. 
    The tiny openings on the underside of the leaf that help the plant take in carbon dioxide are called...
    • A. 

      Stomata

    • B. 

      Xylem

    • C. 

      Phloem

    • D. 

      Chlorophyll

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