Cells and Organelles Chemistry Transport Energy and Reactions Enzymes
100
a) All cells come from pre-existing cells
Which of the following is part of cell theory?
a) All cells come from pre-existing cells
b) Organelles are the basic unit of life
c) All living things undergo cell division
d) All cells have the same organelles
100
What are lipids?
This category of biomolecules is known for being nonpolar and made up of 3 fatty acid tails and a glycerol backbone
100
What is facilitated diffusion?
When moving glucose across a cell membrane, what form of transport is used?
100
What is catabolic/exergonic?
This type of reaction breaks down large molecules into smaller molecules. It has 2 names.
100
On the active site of the enzyme
Where does a competitive inhibitor bind?
200
d) makes membranes
What is the function of the rough endoplasmic reticulum?
a) makes lipids, stores calcium in muscle cells
b) packages and ships materials out of the cell
c) site of cell respiration
d) makes membranes
200
What are covalent bonds?
Organic molecules are held together by this type of high-energy bond, which is also the strongest type of bond
200
What are aquaporins?
This kind of membrane protein is used to move water in bulk amounts across a membrane
200
What are kinetic energy (energy of motion) and potential energy (stored/chemical energy)
Name the two types of energy we discussed in class and what each is.
200
What are enzymes and substrates?
Reaction rates are related to the amount of _______ and _______
300
N/A
Draw the structure of the cell membrane.
300
Nonpolar
When electrons are equally shared among the atoms within a molecule, the molecule is
300
c)molecules move across the membrane from high to low concentration without the use of energy or proteins
Simple diffusion is when
a) transport proteins help charged or large molecules move across the membrane
b) energy allows ions to move up the concentration gradient through channels
c) molecules move across the membrane from high to low concentration without the use of energy or proteins
d) water diffuses across the membrane
300
What is anabolic/endergonic?
This type of reaction builds complex molecules from smaller building blocks. It has 2 names.
300
An allosteric inhibitor binds to the allosteric site and changes the shape of the enzyme so that the substrate cannot fit.
Where does an allosteric inhibitor bind? What does this do?
400
What is the lysosome?
This organelle digests cell material with enzymes
400
a) NaCl
Which of the following is not an organic molecule?
a) NaCl
b) glucose
c) carbon dioxide
d) testosterone
400
N/A
Give an example of an active transport protein and either draw it in action, or describe what it does to move materials across the membrane.
400
What is catabolism of food?
Where do your cells get the energy to add the third phosphate group?
400
What is feedback inhibition?
This process is described as when the product itself can inhibit enzymes in its synthesis pathway
500
What is the zip code system?
The mechanism in cystic fibrosis is linked to the malfunction of what system in the endomembrane system?
500
What is CO2 and O2
Equilibrium is never reached between what two compounds in your cells?
500
False! Sodium ions and chloride ions are moved across the membrane by active transport, since they are large and charged.
True or false?: Salt can freely diffuse across the cell membrane.
500
When energy released from exergonic reactions is used to drive endergonic reactions
Explain energy coupling
500
What is penicillin or ibuprofen?
Give an example of an inhibitor.






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