In general, colder temperatures reduce the fluidity of the membrane, so cells will produce different molecules to maintain the proper degree of fluidity. How would the membrane change in response to colder temperatures?
The amount of saturated triacylglycerols would increase.
The amount of unsaturated fatty acids would increase.
The length of the fatty acid side chains in the phospholipids would increase.
The amount of saturated triacylglycerols would decrease.
The amount of unsaturated fatty acids would decrease.
*I think the answer to this is b.
2. Which one of the following statements about a carbon-carbon double bond is CORRECT?
Each of the two carbons is capable of bonding to three other atoms.
The double bond allows free rotation of the molecule at the bond position.
Double bonds are often found in cyclical structures.
The double bond is longer than a corresponding carbon-carbon single bond.
None of the other answer options is correct.
* I have NO IDEA how to answer this one. :(
3. Which one of the following nucleotides could base pair with a pyrimidine?
All of these choices are correct.
cytosine
uracil
thymine
adenine
*Would it be adenine?
I truly appreciate the help. I am taking molecular and cellular biology and I am already struggling two weeks in to the semester. Its so difficult!!!
