Oxidative decarboxylation of pyruvic acid results in the formation of
I. Acetyl CoA
II. CO2
III. ATP
IV. NADH + H+
I only
I and II only
I, II and III only
I, II and IV only
I, II and IV only
Select the correct order of reactions in glycolysis
(A) Conversion of 3-phosphoglyceraldehyde to 1,3-bisphosphoglycerate
(B) Conversion of 3-phosphoglyceric acid to 2- phosphoglycerate
(C) Conversion of BPGA to 3 phosphoglyceric acid
(D) Splitting of fructose 1, 6 bisphosphate into dihydroxy acetone phosphate and 3-phosphoglyceraldehyde
(D), (C), (A), (B)
(B), (C), (A), (B)
(B), (D), (C), (A)
(A), (D),(C), (B)
(A), (D),(C), (B)
Free living nitrogen fixing aerobic bacterium is
Rhodospirillum
Anabaena
Nostoc
Beijernickia
Beijernickia
Which of the following plant growth hormone increases the yield of sugar by increasing the length of stem in sugarcane?
Cytokinin
Auxin
Abscisic acid
Ethylene
Ethylene
One hormone hastens the maturity period in juvenile conifers, a second hormone controls xylem differentiation while the third increases the tolerance of plants to various stresses and they are respectively-
Auxin, Gibberellin and Cytokinin
Gibberellin, Auxin and Cytokinin
Gibberellin, Auxin and Ethylene
Gibberellin, Auxin and ABA
Gibberellin, Auxin and ABA
Which of the following is NOT an effect of ethylene?
Promotes senescence and abscission of plant organs
Breaks seed and bud dormancy
Brings about horizontal growth of seedlings
Hastens fruit ripening
Hastens fruit ripening
Match Column I with Column II and select the correct option
Column I | Column II |
(A) Ascomycetes | (1) Ustilago |
(B) Phycomycetes | (2) Saccharomyces |
(C) Basidiomycetes | (3) Trichoderma |
(D) Deuteromycetes | (4) Albugo |
A - 2; B - 1; C - 4; D - 3
A - 4; B - 3; C - 2; D - 1
A - 2; B - 4; C - 1; D - 3
A - 3; B - 4; C - 1; D - 2
A - 3; B - 4; C - 1; D - 2
C.
A - 2; B - 4; C - 1; D - 3
Column I | Column Ii |
(A) Ascomycetes | (2) Saccharomyces |
(B) Phycomycetes | (4) Albugo |
(C) Basidiomycetes | (1) Ustilago |
(D) Deuteromycetes | (3) Trichoderma |
Which of the following statement(s) about taxonomical aids is/are true?
I. Keys are used to identify plants and animals based on similarities and dissimilarities.
II. Flora contains the account of habitat and distribution of plants in a given area.
III. Flora provide an index to the plant species found in a particular area.
IV. Monographs provide information for identifying the species found in an area.
I and II only
I, II and III only
I and IV only
I only
I only
Which one of the following shows, the hierarchial arrangement of taxonomic categories of plants in descending order?
Kingdom Division Class Order Family Species Genus
Kingdom Division Order Class Family Species Genus
Kingdom Division Order Class Family Genus Species
Kingdom Division Class Order Family Genus Species
Kingdom Division Class Order Family Genus Species
Which of the following does not apply to Ascomycetes?
Mycelium is coenocytic and aseptate
Commonly known as sac fungi
Asexual spores called conidia are produced exogenously
Sexual spores called ascospores are produced endogenously
Sexual spores called ascospores are produced endogenously