Posts tagged Molecular Biology
Rookie Med
Check it out, let me know what you think, and above all, Enjoy...
Biology Study Questions
1. Which of the following statements about enzyme kinetics is FALSE?
A. An increase in the substrate concentration leads to proportional increase in the rate of the reaction.
B. Most Enzymes operating in the human body work best at temp of 37 degrees C.
C. An enzyme-substrate complex can either form a product of dissociate back into the enzyme and substrate.
D. Maximal activity of many human enzymes occurs around pH 7.2
2. Some Enzymes require the presence of a non-protein molecule to behave catalytically. An enzyme devoid of this molecule is called a(n).
A. Holoenzyme
B. Apoenzyme
C. Coenzyme
D. Zymoenzyme
Anyone for more?
Biology Study Question
Good job to those of you that answered F to that last question. If you didn’t get the answer just remember that the cell membrane is comprised of phopholipids that have a hydrophilic (polar) head and a hydrophobic (non-polar)
This one may seem simple to some, be ready i got some more brain busters coming up.
The next question pertains to Enzymes:
By adding more substrate which of these effects are counteracted?
A. Competitive Inhibition
B. Non-Competitive Inhibition
C. All of the Above
What do you think?
Membrane Movement Question
Some molecules require help to cross the cellular membrane. depending on the molecule they will require energy, other molecules to help or sometimes nothing. what types of molecules cross through facilitated diffusion?
a. large, polar molecules
b. small, non-polar molecules
c. charged, small molecules/atoms
d. All of the above
e. a and b
f. a and c
what do you think?
Using the structures given tell me what they elongate to form (Polymer form). If you know the names give that a try too.
I was given 1 and 2, and asked the same question on my molecular biology test. (be careful. (I’ll be impressed if you get it.)
Biology Study Questions
1. What does polycistronic mRNA do?
2. In a single strand of nucleic acid, nucleotides are linked by…
3. In the DNA of a fruit fly (Drosophila melanogaster) 20% of the bases are cytosines. What percent are adenines?
Bonus question to be posted soon.
DNA Discovery Credit
Many people know the names Watson and Crick go hand and hand with DNA structure. What you should know, and never forget, is that Rosalind Franklin actually took the X-rays Watson/Crick used. However she had passed away before this was discovered. On test day know Watson/Crick but in your cardiovascular organ know Rosalind Franklin.
