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#Question id: 666


Nearly all peptide bonds are in the trans configuration because

#I Life Science/ Life Sciences Group – I-V
  1. cis peptide bonds are weaker.

  2. trans peptide bonds are stronger.

  3. cis peptide bonds prevent R groups from interacting.

  4. trans peptide bonds minimize steric hindrance of R groups.

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#Question id: 3011

#SCPH05 I Biotechnology

Bacteria that may form endospores include

TLS Online TPP Program

#Question id: 12721

#SCPH06 I Botany

There are the five groups of late embryogenesis abundant (LEA) proteins found in plants

Match the following groups of LEA protein with its functional information;

 Group (family name)

                           Functional information

 

I) Group 1

   (D-19 family)

 

 

a) It is an abundant protein in cotton embryos, Each putative dimer of this group may bind as many as ten inorganic phosphates and their counterions

 

 

II) Group 2

    (D-11 family)

 

b) Possibly functions in ion sequestration to protect cytosolic metabolism When LE25 is expressed in yeast, it confers salt and freezing tolerance

 

 

III) Group 3

     (D-7 family)

 

c) In tomato, a gene encoding a similar protein is expressed in response to nematode feeding

 

 

IV) Group 4

    (D-95 family)

 

d) Contains more water of hydration than typical globular proteins Overexpression confers water deficit tolerance on yeast cells

 

 

V) Group 5

    (D-113 family)

 

e) Often localized to the cytoplasm or nucleus More acidic members of the family are associated with the plasma membrane May act to stabilize macromolecules at low water potential

 

TLS Online TPP Program

#Question id: 655

#I Life Science/ Life Sciences Group – I-V

A change from one conformation of a molecule to another involves ________.

TLS Online TPP Program

#Question id: 1560

#I Life Science/ Life Sciences Group – I-V

An invertebrate, such as an insect, has innate immunity that can be nonspecific about which pathogens are prevented from harming its metabolism. Which of the following is most likely to function this way in the insectʹs intestine?

TLS Online TPP Program

#Question id: 5550

#SCPH28 | Zoology

The vertebrate nervous system is derived from