Activities
Cytology
Chapters 4 & 5
A Tour of the Cell
• State the principles of the cell theory.
• Name the three types of bacteria and describe the shapes
• Which of these are proper to animals?
– Membrane
– Cell wall
– Centromeres
– Mitochondria
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Of the listing above, which is proper to plants only?
What is the function of the Golgi apparatus?
What is the function of the chloroplast?
What is the function of the lysosome?
• Look at these pictures and name the types of vacuoles each
has.
• Name the cell junctions proper to animals only and give the
function.
Membrane structure
• Explain the idea of “fluid mosaic”.
• Explain the idea of selective permeability.
• What types of proteins exist in the membrane and what are their
functions?
• Explain the different ways the cell membrane interacts with it’s
environment.
• If you have a beaker with 5% sucrose and put in it a bag with 10%
sucrose, which way will the water go?
• What is the name of the condition the bag just described in the
prior question is?
• Which of the different types of transports are passive and which are
active?
• What is the difference between passive and active transport?
Intro to Metabolism
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Give the difference between anabolism and catabolism
Give the difference between kinetic and potential energy
Explain the Laws of Thermodynamics
Explain the difference between an exergonic and endergonic
reaction
According to your explanation in the last question, which of
the two (photosynthesis/cell respiration) is endergonic and
which is exergonic?
What is an enzyme?
How does it help with chemical reactions?
What factors affect enzymatic activity? Explain.
Look at the picture above.
What type of enzyme
regulation are we seeing
here?
What is the regulator?
Look at the picture below.
Which of the 3 diagrams
has a competitive
inhibitor?
Which of the 4 molecules is
the substrate?
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Give examples of organic and inorganic cofactors
Explain what is negative feedback
Give an example of negative feedback
Knowing that
glucose + H2O
maltose
– How would you stop the reaction in the lab?
– Using negative feedback, what do you need to add to the reaction to
stop it?
– Give the possible name of the enzyme in the reaction
– Knowing the factors needed for this reaction to occur, how would you
maintain it?