AP EAMCET (EAPCET) Botany Multiple Choice Questions (MCQs)
Plants, Microbes & Human Welfare MCQs - APEAPCET Botany
131. What is the primary goal of plant breeding?
a) To improve the aesthetic quality of plants
b) To enhance food production by improving crop traits
c) To develop ornamental plants
d) To reduce the growth rate of plants
Answer: b) To enhance food production by improving crop traits
132. Which crop is NOT traditionally improved through plant breeding for disease resistance?
a) Wheat
b) Rice
c) Sugarcane
d) Sunflower
Answer: d) Sunflower
133. Which method is used for breeding plants for disease resistance?
a) Hybridization
b) Mutation breeding
c) Genetic engineering
d) All of the above
Answer: d) All of the above
134. What is the main advantage of plant breeding for insect resistance?
a) Reduced pesticide use
b) Increased crop yield
c) Improved soil quality
d) Enhanced resistance to disease
Answer: a) Reduced pesticide use
135. What is the purpose of Single Cell Protein (SCP)?
a) To serve as a biofertilizer
b) To produce genetically modified crops
c) To provide an alternative protein source for human and animal nutrition
d) To control pests and diseases
Answer: c) To provide an alternative protein source for human and animal nutrition
136. Which of the following is NOT a microbial product used in industrial applications?
a) Fermented beverages
b) Enzymes
c) Antibiotics
d) Synthetic fertilizers
Answer: d) Synthetic fertilizers
137. What is the role of microbes in sewage treatment?
a) To decompose organic waste in sewage
b) To purify drinking water
c) To produce biofuels
d) To increase the pH of water
Answer: a) To decompose organic waste in sewage
138. What is the function of microbes in the production of biogas?
a) To degrade organic matter and release methane
b) To produce oxygen for plants
c) To absorb carbon dioxide
d) To control the growth of algae
Answer: a) To degrade organic matter and release methane
139. Which of the following is an example of a biological control agent?
a) Synthetic pesticides
b) Predatory insects
c) Chemical fertilizers
d) Growth regulators
Answer: b) Predatory insects
140. What is a challenge posed by microbes in human welfare?
a) Development of antibiotic-resistant strains
b) Excessive use of biofertilizers
c) Overuse of genetically modified organisms (GMOs)
d) Lack of microbe diversity
Answer: a) Development of antibiotic-resistant strains
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