Two curves showing the rate versus substrate concentration are shown below for an enzyme-catalyzed reaction. One curve is for the reaction in the presence of substance X. The other curve is for data in the absence of substance X. Examine the curves and tell which statement below is false.

TLS Online TPP Program

#Question id: 10319

#Unit 1. Molecules and their Interaction Relevant to Biology

The membranous myelin sheath that surrounds and electrically insulates many nerve cell axons is particularly rich in

TLS Online TPP Program

#Question id: 10320

#Unit 1. Molecules and their Interaction Relevant to Biology

Following statements are regarding to archaeal lipids.

A. archaea have membrane lipids containing long-chain (32 carbons) branched hydrocarbons linked at each end to glycerol.

B. archaeal lipids are twice the length of phospholipids and sphingolipids, and can span the full width of the plasma membrane.

C. In archaeal lipids, at each end of the extended molecule is a polar head consisting of glycerol linked to either phosphate or sugar residues.

D. The glycerol moiety of the archaeal lipids is same as the stereoisomer as that in the lipids of bacteria and eukaryotes.

Which of the following statement is incorrect?

TLS Online TPP Program

#Question id: 10321

#Unit 1. Molecules and their Interaction Relevant to Biology

The human blood groups (O, A, B) are determined in part by the oligosaccharide head groups of these glycosphingolipids. Which of the following is correct?

TLS Online TPP Program

#Question id: 10322

#Unit 6. System Physiology – Plant

some of the enzyme of citric acid cycle with its co-factor given in below;

ENZYMES	CO-FACTOR	INHIBITORS
s) Citrate synthase	i) TPP	a) NADH
t) Succinate dehydrogenase	ii) NAD+	b) Monofluoroacetyl-CoA
u) Isocitrate dehydrogenase	iii) Co-A	c) Aresenite, Succinyl CoA, NADH
v) Malate dehydrogenase	iv) FAD	d) ATP
w) α-ketoglutarate dehydrogenase complex	v) NADP+, Mg2+, Mn2+	e) Malonate, Oxaloacetate

Find out the correct combination of Enzymes with its co-factor and inhibitor.

TLS Online TPP Program

#Question id: 10323

#Unit 9. Diversity of Life Forms

If this figure is an accurate depiction of relatedness, then which taxon is unacceptable, based on cladistics?

TLS Online TPP Program

#Question id: 10324

#Unit 9. Diversity of Life Forms

Which of the following is not true of all horizontally oriented phylogenetic trees, where time advances to the right?