Answer from cs61c-au (Robert Webb 14343043) for Question 1
Each piece of TLB refers to the address of a page containing a huge ammount of data, whereas each piece of L1 cache points to a few words.  This means that a very large chunk of memory is "stored" in a small ammount of TLB in the sense that the infomation in the TLB is only where you need to look to get the data.