Review for Chapter 6, 7, 8

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Parts of the Cell review Chapter 6
1.
Distinguish between the following pairs of terms: magnification and resolution; prokaryotic and
eukaryotic cell; free and bound ribosomes; smooth and rough ER
2.
Describe the structure and function of the components of the endomembrane system
3.
Briefly explain the role of mitochondria, chloroplasts, and peroxisomes
4.
Describe the functions of the cytoskeleton
5.
Compare the structure and functions of microtubules, microfilaments, and intermediate filaments
6.
Explain how the ultrastructure of cilia and flagella relate to their functions
7.
Describe the structure of a plant cell wall
8.
Describe the structure and roles of the extracellular matrix in animal cells
9.
Describe four different intercellular junctions
Cell Membrane review Chapter 7
1.
Define the following terms: amphipathic molecules, aquaporins, diffusion
2.
Explain how membrane fluidity is influenced by temperature and membrane composition
3.
Distinguish between the following pairs or sets of terms: peripheral and integral membrane proteins;
channel and carrier proteins; osmosis, facilitated diffusion, and active transport; hypertonic, hypotonic,
and isotonic solutions
4.
Explain how transport proteins facilitate diffusion
5.
Explain how an electrogenic pump creates voltage across a membrane, and name two electrogenic pumps
6.
Explain how large molecules are transported across a cell membrane
Cell Metabolism review Chapter 8
1.
Distinguish between the following pairs of terms: catabolic and anabolic pathways; kinetic and potential
energy; open and closed systems; exergonic and endergonic reactions
2.
In your own words, explain the second law of thermodynamics and explain why it is not violated by living
organisms
3.
Explain in general terms how cells obtain the energy to do cellular work
4.
Explain how ATP performs cellular work
5.
Explain why an investment of activation energy is necessary to initiate a spontaneous reaction
6.
Describe the mechanisms by which enzymes lower activation energy
7.
Describe how allosteric regulators may inhibit or stimulate the activity of an enzyme
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