carbohydrate and protein

What is the original color of iodine solution?

• blue black

• red

• yellowing brown

• colourless

which of the following foods are rich in starch?

• bread and potato

• prawn and beef

• milk and egg

• pork and peanut

what is the observation obtained when iodine solution drop into a mashed potato?

• turn to blue black

• turn to colorless

• brick red precipitate formed

• no change

Tags

NGSS.MS-PS1-2

what is the original color of Biuret solution?

• blue

• purple

• red

• yellowish brown

What is the reagent can be used to test for starch?

• Iodine solution

• DCPIP solution

• Benedict solution

• Sudan III solution

Which of the following reagent can be use to test for protein?

• Biuret solution

• Iodine solution

• Benedict solution

• DCPIP solution

The function of major nutrient of Food X is the main energy source of the human body.
Which of the following food is food X.

• Bun

• Peanut

• Spinach

• Chicken

Which of the following nutrient is the essential building block of repairing tissue

• protein

• sugar

• dietary fibre

• fat

Tags

NGSS.MS-LS3-1

which group of foods should site worker eat more?

• Dessert

• Foods rich in starch

• Foods rich in fat

• Foods rich in dietary fibre

Answer explanation

site workers need more energy for work. carbohydrates should be the major nutrient for them.
although dessert contains a lot of sugar, intake of too much of dessert may harm body health.

Which of the following food may not be able turn the iodine solution to blue-black?

• Bun

• Corn

• yam

• apple

Tags

NGSS.MS-PS1-2