Biology Exam Class 11 Online Exam Quiz
Biology Exam Class 11 GK Quiz. Question and Answers related to Biology Exam Class 11. MCQ (Multiple Choice Questions with answers about Biology Exam Class 11
Assume that after every budding cycle, the parent organism becomes barren. And the daughter organism produced further gives rise to a new organism. After a period of 78 hours, how many fertile and barren organisms would be left if the initial number of organisms N0 = 2 (Assume that every budding cycle takes 2 hours)?
Options
A : 1 and 239-1 respectively
B : 1 and 39 respectively
C : 2 and 78 respectively
D : 2 and 240-1 respectively
Yeast grows exponentially through budding. If one budding cycle takes 90 minutes, what will be the population of yeast after 144 hours if the initial population N0 = 5?
Options
A : 480
B : 5 × 296
C : 96×25
D : 144×25
Who discovered Penicillin and when?
Options
A : Alexander Graham Bell in 1918
B : Alexander Flemming in 1928
C : Alexander Flemming in 1938
D : Alexander Flemming in 1948
Which among the following fungus are used in the manufacture of proteins?
Options
A : Asperigillus niger
B : Saccharomyces cerevisiae
C : Trichoderma
D : Aspergillus flavus
Which among the following are not mycoses?
Options
A : Candidiasis
B : Scabies
C : Tinea versicolor
D : Cryptococcosis
Yeast grows in ______
Options
A : damp and dark conditions
B : dry and cold conditions
C : sunlight
D : hot deserts
Which among the following are incorrect?
Options
A : Mushrooms are edible and grow in rainy season
B : Slime molds are immobile
C : Yeast are sometimes found multi-cellular by formation of hyphae
D : Yeast doesn’t need sunlight to grow
Which of the following is used in brewing of beer?
Options
A : Penicillium
B : Yeast
C : Club fungi
D : Mushroom
Penicillin was first discovered from _______
Options
A : Penicillium roqueforti
B : Penicillium chrysogenum
C : Penicillium notatum
D : Penicillium camemberti
Which is the main source of energy for yeast?
Options
A : Sunlight
B : Nitrogen
C : Organic compounds
D : Nitrates
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