#1
Which of the following is a primary function of plant roots?
Water and nutrient absorption
ExplanationPlant roots primarily function in water and nutrient absorption.
#2
Which of the following nutrients is often referred to as the 'building block' of plant proteins?
Nitrogen
ExplanationNitrogen is often referred to as the 'building block' of plant proteins.
#3
Which of the following is a leguminous cover crop commonly used for nitrogen fixation in agriculture?
Clover
ExplanationClover is a leguminous cover crop commonly used for nitrogen fixation in agriculture.
#4
What is the primary function of the phloem in plants?
Food transport
ExplanationThe primary function of the phloem in plants is food transport.
#5
Which plant family includes important cereal crops such as wheat, rice, and corn?
Poaceae
ExplanationThe plant family that includes important cereal crops such as wheat, rice, and corn is Poaceae.
#6
What is the process by which plants convert light energy into chemical energy?
Photosynthesis
ExplanationPhotosynthesis is the process by which plants convert light energy into chemical energy.
#7
Which plant hormone is responsible for cell elongation and growth?
Auxin
ExplanationAuxin is the plant hormone responsible for cell elongation and growth.
#8
What is the main function of stomata in plant leaves?
Gas exchange
ExplanationStomata in plant leaves mainly function in gas exchange.
#9
Which plant disease is caused by a fungus and often affects cereal crops like wheat and barley?
Rust
ExplanationRust is a plant disease caused by a fungus, often affecting cereal crops like wheat and barley.
#10
What is the term for the agricultural practice of growing two or more crops in the same field in alternating rows?
Intercropping
ExplanationThe agricultural practice of growing two or more crops in the same field in alternating rows is called intercropping.
#11
Which essential nutrient is often deficient in plants grown in acidic soils?
Iron
ExplanationIron is often deficient in plants grown in acidic soils.
#12
What is the term for the protective outer covering of a seed?
Testa
ExplanationThe protective outer covering of a seed is called the testa.
#13
In agriculture, what is the purpose of crop rotation?
Control pests and diseases
ExplanationCrop rotation in agriculture is used to control pests and diseases.
#14
What is the process of converting atmospheric nitrogen into a form that plants can use called?
Nitrogen fixation
ExplanationThe process of converting atmospheric nitrogen into a form that plants can use is called nitrogen fixation.
#15
Which plant growth regulator is often used to delay fruit ripening and extend the shelf life of fruits?
Abscisic acid
ExplanationAbscisic acid is often used as a plant growth regulator to delay fruit ripening and extend the shelf life of fruits.
#16
What is the role of mycorrhizal fungi in plant-microbe interactions?
Facilitate nutrient uptake
ExplanationMycorrhizal fungi play a role in plant-microbe interactions by facilitating nutrient uptake.
#17
Which plant hormone is associated with promoting leaf senescence and abscission?
Ethylene
ExplanationEthylene is the plant hormone associated with promoting leaf senescence and abscission.