Vitamin K
Vitamin A
Iron
100

How many forms of vitamin K are there?

Three.
100

How many forms of Vitamin A are there?

Three.

100

What are the two major dietary forms of iron?

Heme iron and non-heme iron.

200

What foods are a good source of phylloquinone?

Green leafy vegetables, broccoli, asparagus, and brussel sprouts.

200

The three forms of vitamin A are known as what?

Retinoids.

200

Heme iron is found where?

In foods of animal origin in hemoglobin and myoglobin.

300

Vitamin K2 is synthesized by bacteria where?

In the colon.

300

Which two forms are fairly interchangeable?

Retinol and Retinal.

300

What percentage of iron in fish, meat, and poultry is non-heme iron?

60%.

400

Menaquinone compromises how much of absorbed vitamin K?

10%

400

What are the two primary dietary sources of Vitamin A?

Animal products and plants.

400

What is the difference in oxidized iron and reduced iron?

Fe3+ and Fe2+

500

What is the synthetic form of Vitamin K called?

Menadione (K3).

500

True or False. Preformed vitamin A is only found in animal products.

True.

500

Approximately 85-90% of iron we consume is what type of iron?

non-heme iron.

M
e
n
u