Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
bio exam 2
Biology - final - exam 2 questions
| Question | Answer |
|---|---|
| What type of chemical bonds holds the two strands of a DNA molecule together? | Glycosidic bonds |
| Macromolecules are created by linking together many monomers into polymers. What type of reaction would be involved in linking together monomers in all the various different types of biological macromolecules? | Glycosidic |
| Which best summarizes the structure differences between DNA and RNA | RNA uses uracil, while DNA uses thymine |
| If one strand of a DNA molecule has the sequence of bases 5' - ATTGCA - 3', then the complementary strand of DNA would have the sequence: | 3' - TAACGT - 5' |
| What are examples of polysaccharides discussed in class? | Cellulose and chitin |
| A glycerol with two fatty acids and a polar head group attached would be a: | phospholipid |
| The quaternary structure of a protein is the: | bonding together of several separate polypeptide chains by weak bonds |
| Hydrolytic enzymes found in lysosomes will break apart proteins into: | amino acids |
| A molecule with the chemical formula C6H12O6 is probably a _____ | monosaccharides |
| The main function of triglyceride fats in most cells is: | energy storage |
| Amphipathic lipids are: | both hydrophobic and hydrophillic |
| What molecule is not a part of animal cell membranes? | nucleic acids |
| The interior portion of the phospholipid bilayer is: | hydrophobic |
| According to the fluid mosaic model of cell membranes, which of the following is a TRUE statement about membrane phospholipids? | They can move laterally along the plane of the membrane |
| When two aqueous solutions that differ in solute concentration are placed on either side of semipermeable barrier that blocks the movement of solute but not water, then there will be: | a net movement of water to the side with higher solute concentration |
| Which type of molecule would be typically found ONLY in the outer leaflet (environmental face) of a plasma membrane? | carbohydrates |
| The cell membranes of an Antarctic fish living in very cold water might have which of the following adaptations to its membrane structure? | a greater proportion of unsaturated fatty acids |
| The net movement of a molecule from a region of higher concentration to a region of lower concentration is called: | diffusion |
| The movement of a substance across a biological membrane against its concentration gradient with the help of energy input is which of the following? | active transport |
| All of the following are functions of membrane proteins EXCEPT: | protein synthesis |
| A patient had a serious accident & lost a lot of blood. In attempt to replenish body fluids, distilled water equal to the volume of blood lost is transferred directly into one of his veins. What will be the most probable result of this transfusion? | The patient's red blood cells will burst because the water is hypotonic compared to the cells |
| Molecules such as O2 (oxygen gas) and CO2 (carbon dioxide) would pass through membranes via: | passive/simple diffusion |
| Both active transport and facilitated diffusion utilize what types of molecules in membranes? | integral membrane proteins |
Created by:
josie_d
Popular Biology sets