Following are some facts regarding C3 and C4 Plants

a.) In C4 plants the reduction is caused by the additional energy requirements such as 1 ATP per CO2 from C3 plants

b.) C4 leaves are exposed to low O2 concentrations, the quantum yields for CO2 fixation remain constant while C3 leaves are exposed to low O2 concentrations quantum yield increases

c.) C3 leaves are exposed to low O2 concentrations, photorespiration is maximized

d.) Plant with the C4 metabolism need more rubisco than C3 plants to achieve a given rate of Photosynthesis

Which of the following combination would be correct?

TLS Online TPP Program

#Question id: 32714

#Unit 1. Molecules and their Interaction Relevant to Biology

The existence of an enzyme-substrate complex can be experimentally demonstrated by

a. X-ray crystallography

b. ESR

c. NMR

d. Fluorimetery

TLS Online TPP Program

#Question id: 32715

#Unit 1. Molecules and their Interaction Relevant to Biology

Which model correctly represents the graph

 

TLS Online TPP Program

#Question id: 32716

#Unit 1. Molecules and their Interaction Relevant to Biology

The given relationship is known as

TLS Online TPP Program

#Question id: 32717

#Unit 1. Molecules and their Interaction Relevant to Biology

The enzyme urease enhances the rate of urea hydrolysis at pH 8.0 and 20oC by a factor of 1014. If a given quantity of urease can completely hydrolyze a given quantity of urea in 5.0 min at 20oC and pH 8.0, how long would it take for this amount of urea to be hydrolyzed under the same conditions in the absence of urease?

TLS Online TPP Program

#Question id: 32718

#Unit 1. Molecules and their Interaction Relevant to Biology

When enzyme solutions are heated, there is a progressive loss of catalytic activity over time due to denaturation of the enzyme. A solution of the enzyme hexokinase incubated at 45oC lost 50% of its activity in 12 min, but when incubated at 45oC in the presence of a very large concentration of one of its substrates, it lost only 3% of its activity in 12 min. What is correct explanation

TLS Online TPP Program

#Question id: 32919

#Unit 2. Cellular Organization

Which control system triggers the early mitotic events that lead to chromosome alignment on the mitotic spindle in metaphase?