Author Question: If a material has a half-life of 24 hours, how long do you have to wait until the amount of ... (Read 70 times)

lidoalex · **on:** Aug 27, 2018

If a material has a half-life of 24 hours, how long do you have to wait until the amount of radioisotope is 1/4 its original amount?

A) 12 hours
B) 24 hours
C) 48 hours
D) 72 hours
E) practically forever, but it may be safe by then

Question 2

Glycogen can be easily and rapidly converted to glucose because ________.

A) glycogen is a highly branched polymer
B) glucose is more soluble than glycogen
C) lactase easily reacts with glycogen
D) lactase easily reacts with glucose
E) glycogen is very coiled and its springy shape provides extra energy