The ratio of the outer and the inner perimeter of a circular path is 23 : 22. If the path is 5 metres wide, the diameter of the inner circle is :

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#Question id: 29435

#Unit 6. System Physiology – Plant

Flavonoid's compound release by host plant are given match the following

Legume	Compound
1. Common bean	a. Apigenin
2. Pea	b. Daidzein
3. Soybean	c. naringenin

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#Question id: 29436

#Unit 6. System Physiology – Plant

Which of the following is incorrectly paired 

a. NodA is an N-acyltransferase

b. NodB is a chitin-oligosaccharide deacetylase

c. NodB is a N-acyltransferase

d. NodC is a chitin-oligosaccharide synthase

f. NodC is a chitin-oligosaccharide deacetylase

TLS Online TPP Program

#Question id: 29437

#Unit 6. System Physiology – Plant

Important chemical reactions involved in Nitrate assimilation at roots are given

a. a & b both is Nitrate reductase 

b. a & b both is NADPH nitrite reductase 

c. a is Nitrate reductase and reaction takes place in plastid 

d. a is Nitrate reductase and b is NADPH nitrite reductase

Choose the correct statement made regarding the above reactions of the following

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#Question id: 29438

#Unit 6. System Physiology – Plant

Symbiotic nitrogen fixation in legume nodules involves Root hair cellular responses to bacterial Nod factor and this response is time-based phenomenon

Response	Timing
I. Membrane potential depolarization	a. Observed in root hairs within 1 minute of NF application
II. Ca2+ spiking in and around root hair cell nucleus	b. Begins within ~10 minutes after NF exposure
III. Root hair growth perturbation	c. Occur over a period of hours
IV. Reduction in rate of reactive oxygen production	d. Observed in root hairs within 1 minute of NF application

Match the Response with their appropriate timing

TLS Online TPP Program

#Question id: 29439

#Unit 6. System Physiology – Plant

Nitrogenase, a complex metal containing enzyme is involved in conversion of N2 to NH3•

a. Nitrogenase is composed of two component proteins

b. Nitrogenase is a complex consisting of the MoFe protein (dinitrogenase or component I) a heterotetramer

c. Nitrogenase is a complex consisting of the MoFe protein (dinitrogenase or component I) a heterotetramer

d. Fe protein (dinitrogenase reductase or component II) a heterodimer

Which of the combination of above statement about Nitrogenase is INCORRECT

TLS Online TPP Program

#Question id: 29440

#Unit 6. System Physiology – Plant

Nitrogenase is a complex consisting of the 

(a) MoFe protein (dinitrogenase or component I) a heterotetramer

(b) the Fe protein (dinitrogenase reductase or component II) a heterotetramer

(c) MoFe protein (dinitrogenase or component I) a homodimer.

(d) the Fe protein (dinitrogenase reductase or component II) a homodimer

Which of the following is correct