Flavonoids

Which of the following are free radicals? (multiple choice test)

• hydrogen peroxide (H₂O₂)

• singlet oxygen (O₂)

• sodium hydroxide (NaOH)

• glucose

Where have flavonoids found applications?

• as enzymes

• in medicine, for example in cancer therapy

• in catalysis and inorganic chemistry

• in the electronics industry

Where are flavonoids produced?

• in plants

• in the human body

• they are synthesized in the laboratory

• in the saliva of animals

Where can flavonoids be found?

• in meat and fish

• in plants, mainly fruits and vegetables

• they have to be synthesized

• they are produced in the human body

How many flavonoids have been isolated so far?

• 34

• 10

• 700

• over 5000

What is the oxidative stress?

• a subgroup of flavonoids

• breathing fast when you are nervous

• an imbalance between ROS action and the ability to detoxify reactive products or repair damages

• a disease associated with the respiratory system

What are flavonoids?

• organic compounds based on benzopyrene skeleton

• inorganic compounds

• enzymes

• flowers

Which of the following is not a flavonoid group?

• flavones

• flavonols

• flavanones

• ketons

Could oxidative stress be a beneficial phenomenon?

• No, it only causes damage

• Yes, oxidative stress is a physiological phenomenon

What determines the division of flavonoids into subgroups?

• the carbon of C ring on which the B ring is attached and the degree of unsaturation of C ring

• the number of hydroxyl groups

• antioxidant properties

• nothing, assignment to groups is random