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Biochemical Processes in Ripening Fruits Quiz

#1

Which enzyme plays a crucial role in breaking down pectin during fruit ripening?

Pectinase
Explanation

Pectinase is responsible for breaking down pectin, contributing to fruit softening.

#2

What role does starch conversion into sugars play in fruit ripening?

Promotes sweetness
Explanation

Starch 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
Explanation

Abscisic 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
Explanation

Amylase plays a role in the hydrolysis of starch during fruit ripening.

#5

Which compound is responsible for the characteristic aroma of ripe fruits?

Terpenes
Explanation

Terpenes are responsible for the characteristic aroma of ripe fruits.

#6

What is the primary gas involved in the regulation of fruit ripening?

Ethylene
Explanation

Ethylene is the key gas regulating fruit ripening processes.

#7

Which hormone is responsible for the initiation of fruit ripening?

Ethylene
Explanation

Ethylene initiates the process of fruit ripening.

#8

Which organelle is actively involved in the synthesis of ethylene during fruit ripening?

Golgi apparatus
Explanation

The 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
Explanation

Respiration 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
Explanation

Lycopene 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
Explanation

Seeds 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
Explanation

Softening 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
Explanation

Banana 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
Explanation

Cellulases are responsible for degrading cell wall components in fruit ripening.

#15

What environmental factor can influence the rate of fruit ripening?

Humidity
Explanation

Humidity can influence the rate of fruit ripening.

#16

What is the primary function of the enzyme polygalacturonase in fruit ripening?

Pectin degradation
Explanation

Polygalacturonase's primary function is the degradation of pectin during fruit ripening.

#17

Which fruit is known for its non-climacteric ripening behavior?

Apple
Explanation

Apple exhibits non-climacteric ripening behavior.

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