Questions 761–770 of 1235. Imported answers require independent review unless marked reviewed.

Topic practice 1235 questionsPage 77 of 124

Question 1

Open question
XL-QMCQ1 markNeeds review
Which one of the following hormones initiates a signaling cascade by directly binding to an intra-cellular receptor?
Your answerChoose one option.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 2

Open question
XL-QMCQ1 markNeeds review
Which one of the following bonds is NOT present in ATP?
Your answerChoose one option.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 3

Open question
XL-QMCQ1 markNeeds review
The reaction involved in the direct conversion of L-phenylalanine to L-tyrosine is
Your answerChoose one option.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 4

Open question
XL-QMCQ1 markNeeds review
The human major histocompatibility complex (MHC) is
Your answerChoose one option.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 5

Open question
XL-QMCQ1 markNeeds review
Har Gobind Khorana and Marshal Nirenberg elucidated the genetic code by using a cell-free protein synthesizing system. It was found that poly(U) and poly(C) result in the synthesis of poly(L-Phe) and poly(L-Pro), respectively. Based on these observations, which one of the following conclusions is correct?
Your answerChoose one option.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 6

Open question
XL-QMCQ1 markNeeds review
Binding of an antibody to its cognate antigen does NOT involve
Your answerChoose one option.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 7

Open question
XL-QMCQ1 markNeeds review
A globular protein of molecular weight 50 kDa exists as a mixture of monomers and dimers in solution. The most appropriate technique for the separation of these two forms of the protein is
Your answerChoose one option.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 8

Open question
XL-QMCQ1 markNeeds review
Choose the correct order of molecules according to their ability to diffuse across a lipid bilayer.
Your answerChoose one option.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 9

Open question
XL-QNAT1 markNeeds review
When one glucose unit from glycogen gets converted to lactate in the muscle, the net number of ATP molecules produced is ________.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 10

Open question
XL-QNAT1 markNeeds review
Considering that the three pK

s of histidine are pK

=1.8, pK

=9.2 and pK

=6.0, its isoelectric point will be ___________ (rounded off to one decimal place).

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer