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Title: biology multiple choice and true or false? Post by: _biology on Sep 2, 2012 1. The presence of which substance in urine is indicative of kidney problems in a human?
A. glucose B. protein C. water D. salt 2. if a crayfish reabsorbs salt into its body, you would expect it to live in saltwater. true or false? 3. which of the following is an example of passive transport in the kidneys? A. movement of sodium out of the convoluted tubules into the interstitial fluid B. reabsorption of water C amino acids transported out of the convoluted tubules Title: biology multiple choice and true or false? Post by: illmatic118 on Sep 2, 2012 B.
False (diffusion) A. Title: biology multiple choice and true or false? Post by: tommyboiazn23 on Sep 2, 2012 ITS ALL A BIG CONSPIRACY- CRAYFISH AND KIDNEYS? IS NO ONE ELSE SEEING THE SIGNS?
Title: biology multiple choice and true or false? Post by: mikejac on Sep 2, 2012 1) B. Protein
2) False. and wht tht other girl said is tru.. =P 3) A. Title: biology multiple choice and true or false? Post by: smkt025 on Sep 2, 2012 1. B. proteins since the are not usually present in the kidney. The presence of this may signify faulty kidney.
2. False. the reabsorption of the crayfish may not indicate its tolerance to saline environment (salty environs). Furthermore if a crayfish can reabsorb salt this would mean that the inside concentration of water would be low henc water from the environment would diffuse to the inside causing the organism to bloat and die. 3. B. reabsorption of water indicates passive transport. Remember that water is just dependent on the concentration gradient for osmosis to occur(diffusion of water). The transport of water never needs the utilization of energy hence it is a very good example of passive transport. hope this helps... |