[A&P] Chpt 3 Lecture

Because he gave us a decent review of the test, I'm just going over his review at the end. Keep in mind that the questions may not add up to 25, but some of them may just be repeat.

1.) If you have a base pair that's sequence is A, T, C, C, G, A, T, what would it's pair look like?

• From what I understood there are certain types of nucleotides that are always seen together, Adenine always binds to Thymine(A, T) and Cytosine always binds to Guanine. (C,G).  Now with that in mind remember that these are pairs, not with each other, but what they are binded with. With that in mind the answer is: 

A, T, C, C, G, A, T.

v   v  v   v  v   v  v

T, A, G, G, C, T, A. 

Look at the above, A is to T, T is to A, so on and so forth, just remember the "A and T" and "C and G".

2.)Next 3 questions are similar to each other all you need to do is remember 3 different words; Hypo(Under) Hyper(Over) Iso(Same)

• If you have a Hypotonic solution(NaCl) and you put a bloodcell in this solution, what will happen to the blood cell? Hypo = Under, a Hypo Solution is a solution of low NaCl, meaning if you drop a blood cell in Hypotonic solution it will swell as water enters the cell from the surrounding dilute solution.
• Now, in the exact opposite case you have Hypertonic(High NaCl) what happens to the blood cell then? They lose water from their cytoplasm into the surrounding Hypertonic solution causing them to shrink
• Lastly, Iso(Same) what would happen? Not a damn thing. Isotonic means Same, Same NaCl inside, and out.

3.)What is the process that occurs when a white blood cell engulfs a microbe? Phagocytosis.

4.)The movement of water and solutes through a membrane as a result of hydro-static pressure, this is a form of? Filtration.

5.)Process in which cell membranes take in fluids? Pinocytosis.

6.)What is it when diffusion happens through a selectively permeable membrane? Osmosis.

7.)Know the forms of Active/Passive.

• Active movement(require energy) - Phagocytosis, Pinocytosis, Ion Pump.
• Passive movement - Diffusion, Osmosis/Dialysis, Filtration.

8.)What is the purpose of the flagella in the sperm cell? To Propel.

9.)What programs the Ribosome? Nucleolus.

10.)What is the hairlike part of the cell? Cilia.

11.)What control's most of the cells activity? Nucleus.

12.)What is in a cell, that's rod-shaped and is important in cell division? Centrioles

13.)What is the organelle that chemically processes molecules? Golgi Apparatus.

14.)What organelle has a digestive/suicide feature? Lysosome

15.)What is the organelle we refer to as "protein factory"? Ribosome.

16.)What is an important part of the cell membrane (about 100 years ago this was stated)? Act as a cell id tag.

17.)What stabilizes the cell membrane? Cholesterol molecules.

18.)What are the Plasma membranes receptors known as? Protein.

19.)What is the Plasma Membrane composed of? Phospholipids, Cholesterol, Protein, 

Please keep in mind this may not be everything on the test, and you will probably be a bit more familiar with tissues, and muscles, just in case.