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Ninth Grade (Grade 9) Cell Structure and Function Questions

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Grade 9 Cell Structure and Function
Which scientist observed cork cells using a microscope?
  1. Hooke
  2. Leeuwenhoek
  3. Darwin
  4. None of these
Grade 9 Cell Structure and Function
Which series correctly describes the order in which a protein moves through a cell?
  1. rough endoplasmic reticulum, Golgi apparatus
  2. ribosome, smooth endoplasmic reticulum, chloroplast
  3. rough endoplasmic reticulum, lysosome, chloroplast, Golgi apparatus
  4. mitochondria, rough endoplasmic reticulum, chloroplast, plasma membrane
Grade 9 Cell Structure and Function
How do light microscopes differ from electron microscopes?
Lab Tool - Microscope
  1. Light microscopes can be used to study proteins; electron microscopes cannot.
  2. Light microscopes can examine living specimens; electron microscopes cannot.
  3. Electron microscopes can be used to examine living specimens; light microscopes cannot.
  4. Light microscopes can magnify a specimen up to 100,000 times; electron microscopes magnify up to 1500 times.
Grade 9 Cell Structure and Function
What type of diffusion occurs through a membrane by means of a channel or carrier protein?
  1. osmosis
  2. simple diffusion
  3. passive diffusion
  4. facilitated diffusion
Grade 9 Cell Structure and Function
All the processes are forms of asexual reproduction EXCEPT
  1. fission.
  2. meiosis.
  3. regeneration.
  4. budding.
Grade 9 Cell Structure and Function
Grade 9 Cell Structure and Function

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Grade 9 Cell Structure and Function
Grade 9 Cell Structure and Function
Which structure is not in a prokaryotic cell?
  1. cytoplasm
  2. plasma membrane
  3. nucleus
  4. genetic material
Grade 9 Cell Structure and Function
You are looking through a microscope at an unknown organism. The organism appears to have a cell membrane and a cell wall. What conclusion can you make about the type of cell it is?
  1. The cell can only be a prokaryotic organism.
  2. The cell cannot be from a eukaryotic organism.
  3. The cell cannot be from a prokaryotic organism.
  4. The cell can be a prokaryotic or eukaryotic organism.
Grade 9 Cell Structure and Function
What is NOT a kind of passive transport?
  1. phagocytosis
  2. osmosis
  3. diffusion
  4. facilitated diffusion
Grade 9 Cell Structure and Function
Grade 9 Cell Structure and Function
Match the appropriate vocabulary word with its correct definition.
__ A type of protein molecule found in the chromosomes of eukaryotic cells but not prokaryotic cells A. Growth Factor
__ One of the two strands of a chromosome that become visible during meiosis or mitosis B. Centromere
__ The region of the chromosomes that holds the two sister chromatids together during mitosis C. Prophase
__ First phase of mitosis when chromatin condenses, the nuclear envelope breaks down, the nucleolus disappears, and the centrosomes and centrioles migrate to opposite sides of the cell; D. Anaphase
__ Second phase of mitosis when spindle fibers align in the chromosome along the cell equator E. Malignant
__ Third phase of mitosis during which chromatids separate and are pulled to opposite sides of the cell F. Cell Cycle
__ Last phase of mitosis when a complete set of identical chromosomes is positioned at each pole of the cell, the nuclear membranes start to form, the chromosomes begin to uncoil, and the spindle fibers disassemble G. Benign
__ Pattern of growth, DNA replication, and cell division that occurs in a eukaryotic cell H. Telophase
__ In eukaryotic cells, a process of cell division that forms two new nuclei, each of which has the same number of chromosomes I. Apoptosis
__ Broad group of proteins that stimulate cell division J. Mitosis
__ Programmed cell death K. Cancer
__ Common name for a class of diseases characterized by uncontrolled cell division L. Histone
__ Having no dangerous effect on health, especially referring to an abnormal growth of cells that are not cancerous M. Metaphase
__ Cancerous tumor in which cells break away and spread to other parts of the body, causing harm to the organism’s health N. Chromatid
Grade 9 Cell Structure and Function

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Grade 9 Cell Structure and Function
When the concentration of molecules on both sides of the membrane is the same, what will the the molecules do?
  1. only move across the membrane to the outside of the cell
  2. stop moving across the membrane
  3. move across the membrane in both directions
  4. only move across the membrane to the inside of the cell
Grade 9 Cell Structure and Function
The process of producing proteins is
  1. protein synthesis.
  2. chromosomes.
  3. photosynthesis.
Grade 9 Cell Structure and Function
Why is a cell's size limited?
  1. Volume increases faster than surface area does.
  2. Surface area increases faster than volume does.
  3. Homeostasis is disrupted by a cell that is too large.
  4. Both A and C
Grade 9 Cell Structure and Function
Grade 9 Cell Structure and Function
Because the cell membrane chooses the materials that can cross through its boundary, it is
  1. selectively porous.
  2. selectively permeable.
  3. selectively fluid.
  4. selectively solid.
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