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Eighth Grade (Grade 8) Biology Questions

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Grade 8 Cell Structure and Function
Grade 8 Cell Structure and Function
During which phase of meiosis does crossing-over occur?
  1. Metaphase I
  2. Anaphase II
  3. Prophase II
  4. Prophase I
Grade 8 Microbiology
Which is SMALLEST of these four?
  1. bacterium
  2. red blood cell
  3. virus
  4. lymphocyte
Grade 8 Cell Structure and Function
Grade 8 Cell Structure and Function
What role(s) does the cytoskeleton play in a living cell? (Hint: CHECK ONLY ONE ANSWER)
  1. maintaining cell shape
  2. movement
  3. contraction
  4. all of the above
Grade 8 Cell Structure and Function
The endoplasmic reticulum is an extension of which of these membranes?
  1. cell membrane
  2. outer nuclear membrane
  3. inner nuclear membrane
Grade 8 Development and Reproduction
Grade 8 Cell Structure and Function
Grade 8 Cell Structure and Function
What is the correct order of these mitotic stages?
  1. prophase - metaphase - telophase - anaphase - cytokinesis
  2. prophase - cytokinesis - metaphase - telophase - anaphase
  3. anaphase - prophase - metaphase - telophase - cytokinesis
  4. prophase - metaphase - anaphase - telophase – cytokinesis
Grade 8 Development and Reproduction
Which of the following is a DISADVANTAGE of sexual reproduction?
  1. limited ability to adapt
  2. lots of variation within a species
  3. requires more time and energy
  4. does not require special cells
Grade 8 Cell Structure and Function
What is another name for programmed cell death?
  1. necrosis
  2. oxidative burst
  3. diapedesis
  4. apoptosis
Grade 8 Cell Structure and Function
A cell in interphase is sometimes said to be resting. Why is this misleading?
  1. interphase cells are actively dividing
  2. interphase cells are synthesizing RNA and proteins, and growing in size
Grade 8 Cell Structure and Function
What does Lysosomes do?
  1. Get rid of waste
  2. Gives us our protein
  3. Stores all information
  4. Transport materials
Grade 8 Cell Structure and Function
Grade 8 Cell Structure and Function
Grade 8 Cell Structure and Function
What is in both of the plant and animal cells?
  1. Cell wall, Er, & Golgi body
  2. Cell wall, Cytoplasm, & Golgi body
  3. Nucleolus, Ribsomes, Er
  4. All of above
Grade 8 Cell Structure and Function
What is the purpose of a cell membrane?
  1. Stores all information
  2. Gives the cell support
  3. too keeps things in and out of the cell
  4. get rid of waste
Grade 8 Circulatory and Immune Systems
Which is the site where oxygen diffuses into the blood?
  1. trachea
  2. bronchus
  3. alveoli
  4. bronchiole
Grade 8 DNA, RNA, and Genetics
Suppose each body cell of Animal A has 70 chromosomes, each sperm of Animal B has 36 chromosomes, and each egg of Animal C has 35 chromosomes. Which of the following is true?
  1. Animal A has the most chromosomes overall.
  2. Animal B and C are probably the same kind of animal.
  3. Animal A and C could be the same animal.
  4. Animal C has the most chromosomes in its body cells.
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