#Question id: 10362
#6. System Physiology – Plant
Bacteria can convert atmospheric nitrogen into ammonia,
Several form symbiotic associations with higher plants is given below;
HOST PLANT
N-FIXING SYMBIONTS
A)
Gunnera
i) Frankia
B) Azolla
ii)
Acetobacter
C)
Leguminous
iii) Azospirillum
D) Actinorhizal
iv) Nostoc
E) Sugarcane
v) Anabaena
F) Miscanthus vi) Sinorhizobium
Which of the following combination with the host plants and
n-fixing symbionts is CORRECT?
#Question id: 10364
#6. System Physiology – Plant
Which of the following is the most common type of symbiosis occurs between members of the plant family and soil bacteria?
#Question id: 10369
#6. System Physiology – Plant
Which type of the nitrogen-fixing bacteria are thought to maintain a low oxygen concentration (microaerobic conditions) through their high levels of respiration
#Question id: 10373
#6. System Physiology – Plant
The nodulation (nod) genes are classified as common nod genes or host specific nod genes. Some statements related to such classification are given below;
a) nod A is a common nod gene and nod Q is a host specific gene
b) nod B is a common nod gene and nod C is a host specific gene
c) nod C is a common nod gene and nod H is a host specific gene
d) nod H is a common nod gene and nod P is a host specific gene
Choose the correct answer from the above statements:
#Question id: 10379
#6. System Physiology – Plant
Upon binding to Nod factors, activates the kinase activity of NFR1, this kianse activity of NFR1 activates which type of set of receptors?
#Question id: 10385
#6. System Physiology – Plant
The leaves of many species are able to bend toward the sun during its progress across the sky, a phenomenon known as