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1) Most human body cells are about 1% solutes. Image a body cell is

placed in a solution that is 0.05 % solutes. The solutes cannot cross the plasma membrane. Which answer correctly identifies the osmolarity of the outside solution and correctly explains what will happen to the cell.
(Hint: Figure out the answer first on your own by sketching the problem, and then look for the matching answer choice. Answer choices are very similar - be sure the entire answer choice is correct)


The 0.05% solution is hypotonic. Water will move into the cell and the cell will burst.


The 0.05% solution is hypotonic. Water will move out of the cell and the cell will shrink or crenate.


The 0.05% solution is hypertonic. Water will move into the cell and the cell will burst.


The 0.05% solution is hypertonic. Water will move out of the cell and the cell will shrink or crenate.


2) The genetic disease cystic fibrosis is caused by a defect in a membrane protein. This membrane protein normally allows the flow of chloride ions through the plasma membrane. What type of membrane protein is affected?


Peripheral recognition glycoprotein


Integral channel protein


Peripheral receptor protein


Integral recognition protein


3) What is the energy source used in active transport?


4)Simple diffusion is


When a cell engulfs and takes in liquid by creating a vesicle.


Water moving up its concentration gradient


Amino acids moving across a membrane through a carrier protein


Any molecule moving down its concentration gradient.
5) Exocytosis is:
Question 5 options:


When a cell releases waste produces or hormones through a vesicle that merges with the plasma membrane.


When a cell engulfs and takes in a particle or liquid.  


When water enters a cell through aquaporins


When water diffuses across a membrane.
6) Osmosis is:
Question 6 options:


When a cell engulfs and takes in liquid by creating a vesicle.


Carbon dioxide diffusing through the plasma membrane 


Any molecule moving down its concentration gradient.


Water diffusing across a semipermeable membrane.


7) Which of the following cannot diffuse directly through the plasma membrane?


O2


small amounts of water


CO2


Most ions
8) Cellular respiration is a reaction where large molecules are broken apart and energy is released. Which of the following correctly describes cellular respiration?
Question 8 options:


Catabolic and Exergonic


Anabolic and Endergonic


Anabolic and Exergonic


Catabolic and Endergonic
9) Photosynthesis is a reaction where large molecules are made with an input of energy. Which of the following correctly describes photosynthesis?
Question 9 options:


Anabolic and Endergonic


Catabolic and Exergonic


Anabolic and Exergonic


Catabolic and Endergonic
10) Which of the following statements about enzymes is FALSE?
Question 10 options:


Enzymes have specificity - usually only bind to one set of substrates.


A single enzyme can catalyze the same type of reaction many times.


Enzymes are proteins that speed up chemical reactions.


Enzymes are destroyed during the reactions that they catalyze.
11)
Indicate the correct order of the steps of the induced fit model of enzyme reactions. (1 indicates the first step and 5 is the last)


Substrate/s begin to interact with the active site.


The substrate binds to the active site.


The product/s are released.


The chemical reaction occurs.


The substrate induced a change in the enzyme / active site shape.
12) Energy that is not converted to useful energy is usually released as:




Light


Electricity


Water


Heat

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Subject: Biology, Science
1) Most human body cells are about 1% solutes.Image a body cell is placed in a solution that is 0.05 % solutes.The solutes cannot cross the plasma...
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