BIO MCQ thread

[sakibfaiyaz]

The answer to this is C, could anyone please explain?

 

[sakibfaiyaz]

Someone?

 

[Sannikutti]

Because it is C
im jokin
This is the reason man
THis is because the concentration of the minerals in the cell sap of the plant and the out side is the same\
সর্বোত্তম ব্যক্তি সর্বদা

 

[sakibfaiyaz]

shorbottom bekti shorboda huh?

 

[hassam]

seems like a tough question to say the least,....dont really knw....

 

[aquariangurl]

The answer's C rite?
Because they're talking about aquatic plants, In Normal plants Transpiration takes place, they HAVE to expel the water to maintain the conc. gradient. But in aquatic plants there is no need to expel excess water as the conc. inside is the same as conc. outside.
I know it's kinda vague..but did you get it?

 

[sakibfaiyaz]

The answer's C rite?
Because they're talking about aquatic plants, In Normal plants Transpiration takes place, they HAVE to expel the water to maintain the conc. gradient. But in aquatic plants there is no need to expel excess water as the conc. inside is the same as conc. outside.
I know it's kinda vague..but did you get it?

Oh I thought of it this way,
Ψ = Ψp + Ψs
Since it is isotonic, the water potential of the solution is equal to the Ψs of the cell, therefore Ψp has to be 0.
correct me if i am wrong

 

[aquariangurl]

i just asked my teacher & yeah you can take it either ways

 

[Talha]

why coudnt it be D??

 

[sakibfaiyaz]

Ok, so what is the role of SER? is it just synthesis of lipids or synthesis and transport? :S
Check these two questions out...one from o/n/09 and one from o/n/05

 

[sweetiepie]

3. IS C..

 

[sweetiepie]

1. is also C

 

[aquariangurl]

Yeah she's right, whenever in an MCQ you see the word steroid, its SES if it's protein, its RER.

 

[sweetiepie]

hmm m alwayz rite...

 

[sakibfaiyaz]

You guys are missing the point. According to the second question SER synthesizes AND transports lipids and steroids. So the answer to the first question can be C or D.

 

[sweetiepie]

q1 or q3 which one???

 

[sakibfaiyaz]

The question to q1 STATES that SER's function is to to synthesise and transport lipids. So, what should be the answer to q3? (could be either C or D)

 

[workinghard]

ic ur point sakib
if its da choice btw d a 2 den go 4 synthesis otherwise its synthesis N transport!!!
u no v can sy dat trans can b taken over by golgi apparatus after da modifications or watevr but synthesis is always by SER...
hope dat ans u...

 

[aquariangurl]

Ok I got your doubt.
Look the basic function of the SES is synthesis of steroid hormones, rite? So the answer is definitely C.
The 2nd question Involves elimination, mitochondria isn't involved in steroid synthesis so No, RER is Protien synthesis so No, Then Golgi apparatus has the basic function of only transport, so the only option is SES.
Did you get it?

 

[sakibfaiyaz]

@working hard:I get your point.. you are saying it does both(synthesise and transport lipids) but if we were to chose one....then we'd give preference to SYNTHESIS...I concluded the same thing...but couldn't find a legitimate logic or a book which says so.
BTW, golgi apparatus does NOT transport lipids and steroids. It only transports modified PROTEINS (as far as i know)
@aquariangurl: yea I get the 2nd question..But if I were to chose between synthesis and transport, what would I choose any why?
A reliable source which states in function in order of importance would be great