259879
In which of the following the sporophyte is indeterminate in growth?
1 Riccia
2 Marchantia
3 Anthoceros
4 Funaria
Explanation:
In Anthoceros sporophyte is represented by foot, merismatic zone and capsule. The sporophte produces the spores in the capsule. The spores on germination produce the gametophyte. The sporophyte of Anthoceros shows indetermine growth and also cylindrical capsule with short foot.
VMMC-2006
Plant kingdom
259880
Clear cut alternation of generations in present in:
1 Rhizopus
2 Aspidium
3 E. coli
4 Spirogyra
Explanation:
Alternation of generations is present in Aspidium. The alternation of generations means that plants alternate between two different life stages, or generations, in their life cycle, a haploid stage called gametophyte and a diploid stage called sporophyte.
JIPMER-1995
Plant kingdom
259881
In plants, glycolate metabolism takes place in
1 low concentration of $\mathrm{CO}_{2}$
2 high concentration of $\mathrm{CO}_{2}$
3 low concentration of oxygen
4 absence of oxygen
Explanation:
In low $\mathrm{CO}_{2}$ concentration glycolic acid or glycolate is formed which forms the substrate for photorespiration or glycolate metabolism. It is energetically wasteful. Photo respiration is related with high $\mathrm{O}_{2}$ and low $\mathrm{CO}_{2}$ concentration.
259879
In which of the following the sporophyte is indeterminate in growth?
1 Riccia
2 Marchantia
3 Anthoceros
4 Funaria
Explanation:
In Anthoceros sporophyte is represented by foot, merismatic zone and capsule. The sporophte produces the spores in the capsule. The spores on germination produce the gametophyte. The sporophyte of Anthoceros shows indetermine growth and also cylindrical capsule with short foot.
VMMC-2006
Plant kingdom
259880
Clear cut alternation of generations in present in:
1 Rhizopus
2 Aspidium
3 E. coli
4 Spirogyra
Explanation:
Alternation of generations is present in Aspidium. The alternation of generations means that plants alternate between two different life stages, or generations, in their life cycle, a haploid stage called gametophyte and a diploid stage called sporophyte.
JIPMER-1995
Plant kingdom
259881
In plants, glycolate metabolism takes place in
1 low concentration of $\mathrm{CO}_{2}$
2 high concentration of $\mathrm{CO}_{2}$
3 low concentration of oxygen
4 absence of oxygen
Explanation:
In low $\mathrm{CO}_{2}$ concentration glycolic acid or glycolate is formed which forms the substrate for photorespiration or glycolate metabolism. It is energetically wasteful. Photo respiration is related with high $\mathrm{O}_{2}$ and low $\mathrm{CO}_{2}$ concentration.
259879
In which of the following the sporophyte is indeterminate in growth?
1 Riccia
2 Marchantia
3 Anthoceros
4 Funaria
Explanation:
In Anthoceros sporophyte is represented by foot, merismatic zone and capsule. The sporophte produces the spores in the capsule. The spores on germination produce the gametophyte. The sporophyte of Anthoceros shows indetermine growth and also cylindrical capsule with short foot.
VMMC-2006
Plant kingdom
259880
Clear cut alternation of generations in present in:
1 Rhizopus
2 Aspidium
3 E. coli
4 Spirogyra
Explanation:
Alternation of generations is present in Aspidium. The alternation of generations means that plants alternate between two different life stages, or generations, in their life cycle, a haploid stage called gametophyte and a diploid stage called sporophyte.
JIPMER-1995
Plant kingdom
259881
In plants, glycolate metabolism takes place in
1 low concentration of $\mathrm{CO}_{2}$
2 high concentration of $\mathrm{CO}_{2}$
3 low concentration of oxygen
4 absence of oxygen
Explanation:
In low $\mathrm{CO}_{2}$ concentration glycolic acid or glycolate is formed which forms the substrate for photorespiration or glycolate metabolism. It is energetically wasteful. Photo respiration is related with high $\mathrm{O}_{2}$ and low $\mathrm{CO}_{2}$ concentration.
