Practice Questions

TLS Online TPP Program

#Question id: 10219

The PSII reaction center leads to easily inactivation and damage by photoinhibition process while Photosystem I Is Protected from Active Oxygen Species, Why PSI protect from active oxygen species in compare to PSII

#Unit 6. System Physiology – Plant

Because PSI contain ferredoxin acceptor that is a very strong reductant that can easily reduce molecular oxygen to form superoxide (O2 –)
Because PSI contain LHCI Complex that protects the reaction centre from damaging by photoinhibition
Because PSI donot have D1 protein that can easily damage or inactivate by photoinhibition
Because PSI perform a process Nonphotochemical quenching is thought to be involved in protecting the photosynthetic machinery against overexcitation and subsequent damage

More Questions

TLS Online TPP Program

#Question id: 223

#Unit 1. Molecules and their Interaction Relevant to Biology

Which coenzyme links to a lysine residue in a proteinʹs active site?

B) lipoic acid (lipoamide)

C) pyridoxal phosphate

D) biotin and pyridoxal phosphate only

TLS Online TPP Program

#Question id: 28857

#Unit 2. Cellular Organization

Which of the following motor proteins mediate the transport along microtubules similar to myosin II ?

TLS Online TPP Program

#Question id: 3050

#Unit 2. Cellular Organization

Agar is well suited as a solidifying agent because

A. it has been melted in boiling water

B. it can be cooled to about 40 to 42°C before hardening

C. it will not melt again until the temperature rises to about 80 to 90°C.

D. most microorganisms cannot degrade it.

TLS Online TPP Program

#Question id: 1150

#Unit 4. Cell Communication and Cell Signaling

cGMP phosphodiesterase catalyzes the conversion of:

TLS Online TPP Program

#Question id: 89

#Unit 1. Molecules and their Interaction Relevant to Biology

In solution α-D-glucopyranose and β-D-glucopyranose ________.