Some given characteristics of the two types of sieve elements in seed plants such as Sieve tube elements and Sieve cells. Find out the  true characteristics of sieve tube elements from the given statements;

i) Found in angiosperms

ii) Sieve plate pores are open channels

iii) Albuminous cells sometimes function as companion cells

iv) P-protein is present in all eudicots and many monocots

v) There are no sieve plates; all sieve areas are similar

TLS Online TPP Program

#Question id: 28155

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following has smallest Bond length in Ang.

TLS Online TPP Program

#Question id: 28156

#Unit 1. Molecules and their Interaction Relevant to Biology

Some statement are given regarding Platelet-activating factor 

a. It is more water-soluble than most glycerophospholipids and plasmalogens

b. It has a long ether-linked alkyl chain at C-1 of glycerol

c. This released from basophils 

d. It stimulates platelet aggregation and the release of vasoconstrictor serotonin from platelets

Which of the following is true

TLS Online TPP Program

#Question id: 28157

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is the cofactor for glutathione peroxidase 

TLS Online TPP Program

#Question id: 28158

#Unit 1. Molecules and their Interaction Relevant to Biology

competitive inhibition may be

a. linear

b. parabolic

c. hyperbolic

d. zig-zag

TLS Online TPP Program

#Question id: 28159

#Unit 1. Molecules and their Interaction Relevant to Biology

The given plot and statement are made after performing the DST calorimetry of a protein

a. X represents perfect folding of protein

b. X represents breaking of a bond

c. Y represents perfect folding of protein

d. Y represents perfect breaking of a bond

Which of the following is correct

TLS Online TPP Program

#Question id: 28160

#Unit 1. Molecules and their Interaction Relevant to Biology

'Protein folding is not random, must have pathways' this statement can be explained by