Solar-tracking leaves present a nearly vertical position at sunrise, and during the night the leaves take a horizontal position, the sensing of light in solar-tracking leaves occurs in specialized regions of the leaf or stem, it can response for,

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: 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: 10318

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following phospholipase generates lysophospholipids?

TLS Online TPP Program

#Question id: 10317

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following are receptors for cholera toxin?

TLS Online TPP Program

#Question id: 1008

#Unit 1. Molecules and their Interaction Relevant to Biology

Which is the correct order for the synthesis of dTMP?

TLS Online TPP Program

#Question id: 1007

#Unit 1. Molecules and their Interaction Relevant to Biology

Which is the correct order for the synthesis of CTP?