Chemistry
(Ch.2)
Carbon and Molecular diversity
(Ch.3)
A Tour of the Cell
(Ch.4)
Membranes
(Ch.5)
Farahad Questions:
(Double points)
100
When sodium metal and chlorine gas react to form a product (NaCl), this bond occurs between the sodium and chlorine atoms? A) Hydrogen Bond B) Covalent Bold C) Van der Waals Interaction D) Ionic Bond
D) Ionic bond
100
Which functional group takes this chemical structure: (-NH2)
Amino Group (pg.43)
100
The Function of the rough ER is mainly the synthesis of...
A) Lipids B) Proteins C) ATP D) Ribosomes
100
Which of the following does not make up part of a eukaryotic animal cell membrane? A) Glycolipids B) Fibronectin C) Phospholipids D) Ribosomes
D) Ribosomes
100
Oxygen has an atomic number of 8 and a mass number of 16. Which of the following is NOT correct about oxygen? A) The oxygen atom contains 8 electrons B) Each oxygen atom has 8 neutrons C) Oxygen can form 4 covalent bonds D) There are 8 protons in each oxygen atom E) Organic molecules must contain oxygen
C) Oxygen can form 4 covalent bonds
200
When looking at a saltwater solution, the water serves as the _____, and the salt serves as the _____? A) Solvent, Solute B) Solute, Solvent
A) Solvent, Solute
200
Sucrose is an example of a... A) Monosaccharide B) Disaccharide c) Polysaccharide D) Lipid
B) Disaccharide
200
The structure that regulates what enters and exits the cell is called...
The Cellular Membrane
200
If an animal cell shrivels in its environment, the cell is _____ to its environment. A) Hypotonic B) Hypertonic C) isotonic D) Endotonic
A) Hypotonic
200
Although macromolecules are composed of different components, (made up of different monomers), they all share... A) Being hydrophobic B) An ability to dissolve in water C) Ionic bonds D) Being formed by dehydration reactions E) Being broken down by peptide reactions
D) Being formed by dehydration reactions
300
Which of the following pH concentrations is closest to that of bleach?
A) 0 B) 7 C) 13 D) 1 E) 26
300
Name all 4 levels of protein structure
1) Primary structure 2) Secondary structure 3) Tertiary structure 4) Quaternary structure
300
What is the difference between a polar covalent bond and a nonpolar covalent bond?
In a nonpolar covalent bond, the atoms share the electrons equally.
300
Give an example of coupled transport...
A sodium-Potassium Pump
300
Peroxisomes and lysosomes both... A) Break down damaged cellular components B) Contain their own DNA C) Contain ribosomes that are similar to those in bacteria D) Contain double phospholipid bilayers E) Are evolutionary relics and perform no function in animal cells
A) Break down damaged cellular components
400
In a covalent bond, the polarity of that bond is determined by how ______ that atom is in relation to the other
Electronegative
400
What purpose do dehydration reactions serve in a living system?
Synthesizing polymers
400
What evidence exists to suggest that chloroplasts and mitochondria once had an endosymbiont relationship with early eukaryotic cells?
1) Double Membrane for each 2) Each have their own DNA
400
What are the two major types of membrane proteins? A) Integral and Peripheral proteins B) Mobile and immobile proteins C) constant and triggered proteins
A) Integral and Peripheral proteins
400
When ions have accumulated on one side of a biological membrane... A) This occurred by osmosis B) This was the result of simple diffusion C) A membrane potential was created D) The membrane is no longer considered to be semipermiable
C) A membrane potential was created
500
The example in the textbook of water moving up the xylum of a tree against gravity shows what aspects of the life-giving properties of water?
The cohesive and adhesive nature of water
500
Define functional groups
Chemical groups that affect molecular function by being directly involved in chemical reactions.
500
Which cell junctions act like function like rivets by fastening cells together.
Desmosomes (pg. 90)
500
When a white blood cell engulfs a bacteria cell. What is this process called?
Phagocytosis
500
If Proton pumps are found in almost all types of cells in each of the three domains of living organisms, this probability indicates that... A) Proton pumps do not evolve but were copied from one cell type to another B) Proton pump proteins must be very simple to polymerize. C) The cytoplasm of every cell has to be acidic D) The cytoplasm of every living cell must be full of ATP E) There is a strong selective pressure for proton pumps to be present in these cells.
E) There is a strong selective pressure for proton pumps to be present in these cells.
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