top score questions!!

[jvss123]

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Bio questions:

If a eukaryotic cell has a diameter thats 10 times that of a bacterial cell, proportionally how much more surface area (SA) would the eukaryotic cell have?
a)10 times the SA
b)100 times the SA
c)1000 times the SA
d)10000 times the SA
e) cannot be determined


In glucose degradation, which of the following is true?
I. Oxygen is the final acceptor of electrons
II. Water is the final acceptor of electrons
III. Oxygen is not necessary for ATP synthesis
IV. Water is not produced

a) I & II
b) I & III
c) III & IV
d) III only
e) IV only

Chemistry question:
What volume of HCl was added if 20 mL of 1 M NaOH is titrated with 1M HCl to produce a pH=2?
a)10.2 ml
b)20.2 ml
c)30.4 ml
d)35.5 ml
e) None of these

ANSWERS--> B, B and E

I kind of have an idea about the first question but am not totally sure, wanted your thoughts... the second one doesn't make sense as I was under the impression that without Oxygen all of the electrons produced from ETC would get backlogged and ATP would not be generated. for the last one, i have no idea how to approach this question.. would appreciate all your help. thanx 😀

 

[jvss123]

bump

 

[polola55]

Bio questions:

If a eukaryotic cell has a diameter thats 10 times that of a bacterial cell, proportionally how much more surface area (SA) would the eukaryotic cell have?
a)10 times the SA
b)100 times the SA
c)1000 times the SA
d)10000 times the SA
e) cannot be determined

1st: Surface area of a sphere is 4pir^2; Thus, you get 100x.

In glucose degradation, which of the following is true?
I. Oxygen is the final acceptor of electrons
II. Water is the final acceptor of electrons
III. Oxygen is not necessary for ATP synthesis
IV. Water is not produced

a) I & II
b) I & III
c) III & IV
d) III only
e) IV only

2nd-glucose degradation does not necessarily mean ETC; it can mean glycolysis or fermentation, which does not require the presence of O2.

Chemistry question:
What volume of HCl was added if 20 mL of 1 M NaOH is titrated with 1M HCl to produce a pH=2?
a)10.2 ml
b)20.2 ml
c)30.4 ml
d)35.5 ml
e) None of these

3rd-I'm stuck on this one. I'll get back to you later.

 

[RSD2014]

This is how I reasoned through it.
Perhaps someone can solve it in a more simple method, I would also like to know an easier way to solve this.