Name: _____________________________
Period: ____
Chapter 6. A Tour of the Cell Worksheet
1. Single-celled organisms and individual cells within multicellular organisms can vary greatly in appearance
as well as in the functions they perform. Nonetheless, each of these cells is alive and therefore must have some
common characteristics.
A) At a minimum what cell components or
structures must a cell contain to be alive?
B) What is the function of each component or structure in
part A.?
1.
2.
3.
2. What would you need to add or change about the cell you described in Question 1 to make it:
A eukaryotic animal cell? (provide functions, too)
A eukaryotic plant cell? (provide functions, too)
3. In the space below draw a flowchart (a step-by-step description) of the endomembrane system as described
in section 6.4. Explain what happens at each step as a secretory protein (one that is destined to leave the cell) is
produced and moves to the cell membrane.
These terms are fair game for the quiz on Tuesday. Fill in the functions for the blanks.
Cell Part or Type
Prokaryote
Eukaryote
Nuclear Envelope
Plasma Membrane
Nucleus
Nucleolus
Chromatin
Chromosome
Cytosol
Endoplasmic Reticulum
Smooth ER
Rough ER
Ribosome
Golgi Apparatus
Lysosome
Vesicle
Vacuole
Food Vacuole
Contractile Vacuole
Central Vacuole
Chloroplast
Thylakoid
Peroxisome
Centrosome
Mitochondria
Cristae
Extracellular Matrix
Intercellular Junctions
Plasmodesmata
Tight Junctions
Gap Junctions
Desmosomes
Function
Regulates what enters and exits the nucleus. Separates the nucleoplasm from the cytoplasm.
Involved in production of ribosomes.
Holds the genetic information for the cell.
Active in membrane synthesis and other synthetic and metabolic processes.
Synthesizes lipids, metabolizes carbohydrates, detoxifies drugs and poisons, stores calcium.
Modifies, stores and ships products of the ER.
Breaks down macromolecules
Membrane bound cavity to contain food, water, or metabolic wastes.
Membrane bound cavity that contains food that has been brought in through phagocytosis.
Pumps excess water out of the cell. Found in many freshwater protists.
In a plant cell, holds reserves of organic compounds, inorganic ions and water. May contain
pigments. May protect against predators by containing poisonous compounds.
Produces hydrogen peroxide and then breaks it down with catalase.
Microtubules originate here when chromosomes divide.
Provides structural support and anchorage to animal cells. Regulates cell’s behavior.
Allows cells to interact, adhere and communicate.
Connects the chemical environments of adjacent cells in plants.
Prevent leakage of extracellular fluid across a layer of epithelial cells of animals.
Allow communication between cells through these cytoplasmic channels of animals.
Fastens cells together in strong sheets in animals.