#Question id: 10362
#SCPH05 I Biotechnology
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: 10363
#SCPH05 I Biotechnology
Free living nitrogen fixing takes place as shown in the following;
TYPE
N-FIXING GENERA
A)
Cyanobacteria (blue-green algae) i)
Bacillus
B)
Aerobic
ii)
Clostridium
C)
Facultative
iii) Anabaena
D)
Anaerobic nonphotosynthetic iv)
Rhodospirillum
E)
Anaerobic photosynthetic
v) Azospirillum
#Question id: 10385
#I Life Science/ Life Sciences Group – I-V
The leaves of many species are able to bend toward the sun during its progress across the sky, a phenomenon known as
#Question id: 10385
#SCPH05 I Biotechnology
The leaves of many species are able to bend toward the sun during its progress across the sky, a phenomenon known as
#Question id: 10385
#SCPH06 I Botany
The leaves of many species are able to bend toward the sun during its progress across the sky, a phenomenon known as
#Question id: 10386
#I Life Science/ Life Sciences Group – I-V
During light-regulated plant development many seeds require light to germinate, a process called