The following table contains details of the relative solutes in a variety of fish and their environments. Both sharks and bony fish live in the sea.
| Salt | Urea | Osmotic concentration | |
| Sea water | 1000 | 1000 | |
| Fresh water | 20 | 20 | |
| Sharks | 650 | 400 | 1050 |
| Bony fish | 190 | 190 | |
| Freshwater fish | 130 | 130 |
Questions
Which of the fish types would need to drink water in their normal environment?
A. Freshwater fish
B. Bony fish
C. Sharks
D. None of the above
In which fish is there likely to be a net solute flow into the fish?
A. Freshwater fish and bony fish
B. Bony fish only
C. Sharks only
D. Both freshwater fish and sharks
Posts
hello,
ReplyDeletei was wondering, do you have the answers to these questions? your blog is very useful and informative. i appreciate it, especially as registering for gamsat this year was a considerable financial investment for me and i can't afford all those preparation courses out there.
Hi Wendy,
ReplyDeleteI've got a useful listing of free GAMSAT resources at http://gamsatstudy.blogspot.com/2009/08/free-gamsat-resources-online-and-how-to.html. I'm not trying to provide answers - if you understand the material, the answers should be easy enough to work out, and I don't want any wrong answers of mine in weak areas like poetry analysis to mess up someone else's study.
Thanks,
Gamsat Study
I think ans are (C) and (A).
ReplyDeleteWe can discuss here.
Hi, I was wondering what the answers were for above. I chose C ( as salt i urea will case water loss and thus require fluid intake) and and D (as these two have higher overall concentration than osmotic environment, causing a net flow of solute inward.) Can someone please comment on this rationale? I am not sure if these answers are correct.
ReplyDeletefor this question what answer would you have given ... just wondering???
ReplyDeletehttp://en.wikipedia.org/wiki/Osmotic_concentration may give an answer :)
ReplyDelete