#1
Which enzyme plays a crucial role in breaking down pectin during fruit ripening?
Pectinase
ExplanationPectinase is responsible for breaking down pectin, contributing to fruit softening.
#2
What role does starch conversion into sugars play in fruit ripening?
Promotes sweetness
ExplanationStarch conversion into sugars promotes sweetness during fruit ripening.
#3
Which plant hormone acts as a ripening inhibitor and is sometimes used to delay fruit ripening in storage?
Abscisic acid
ExplanationAbscisic acid acts as a ripening inhibitor and can delay fruit ripening in storage.
#4
During fruit ripening, what role does the enzyme amylase play?
Starch hydrolysis
ExplanationAmylase plays a role in the hydrolysis of starch during fruit ripening.
#5
Which compound is responsible for the characteristic aroma of ripe fruits?
Terpenes
ExplanationTerpenes are responsible for the characteristic aroma of ripe fruits.
#6
What is the primary gas involved in the regulation of fruit ripening?
Ethylene
ExplanationEthylene is the key gas regulating fruit ripening processes.
#7
Which hormone is responsible for the initiation of fruit ripening?
Ethylene
ExplanationEthylene initiates the process of fruit ripening.
#8
Which organelle is actively involved in the synthesis of ethylene during fruit ripening?
Golgi apparatus
ExplanationThe Golgi apparatus is crucial for synthesizing ethylene during fruit ripening.
#9
In the context of fruit ripening, what does the term 'respiration climacteric' refer to?
Elevated respiratory activity
ExplanationRespiration climacteric refers to increased respiratory activity during fruit ripening.
#10
What is the role of lycopene in the ripening process of certain fruits?
Contributes to color development
ExplanationLycopene contributes to the development of color in certain fruits during ripening.
#11
Which part of a fruit is typically responsible for the production of ethylene during the ripening process?
Seeds
ExplanationSeeds are typically responsible for the production of ethylene during fruit ripening.
#12
During fruit ripening, what is the primary cause of the softening of the fruit tissue?
Pectin degradation
ExplanationSoftening is primarily caused by the degradation of pectin in fruit tissue.
#13
Which of the following fruits is known for its climacteric type of ripening?
Banana
ExplanationBanana exhibits climacteric ripening, characterized by ethylene production.
#14
Which class of enzymes is responsible for the degradation of cell wall components during fruit ripening?
Cellulases
ExplanationCellulases are responsible for degrading cell wall components in fruit ripening.
#15
What environmental factor can influence the rate of fruit ripening?
Humidity
ExplanationHumidity can influence the rate of fruit ripening.
#16
What is the primary function of the enzyme polygalacturonase in fruit ripening?
Pectin degradation
ExplanationPolygalacturonase's primary function is the degradation of pectin during fruit ripening.
#17
Which fruit is known for its non-climacteric ripening behavior?
Apple
ExplanationApple exhibits non-climacteric ripening behavior.