YR2-K4-LSN2

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 2

HAVE READY:

- YOUR MACBOOK

- MAKE SURE YOU ARE SIGNED INTO WOOTS

HAVE READY:

- YOUR MACBOOK

- YOUR KERBOODLE BOOK

- LESSONUP

- YOUR NOTEBOOK

LESSON 2

TODAY'S LEARNING GOALS:

• I know what the various nutrients are broken down into.
• I know which versions of which nutrients are good for us and  where we get them from.

TODAY'S KEY WORDS:

• Monomer
• Polymer
• Starch
• Lactose 
• Glucose 
• Amino acids
• Iron
• Calcium
• Sodium
• Vitamins A, B, C, D & E
• Saturated fats
• Unsaturated fats

Some nutrients are too large to be absorbed

Nutrients that are small enough to be absorbed by the body:

• water
• vitamins
• minerals 

Nutrients that are too big to be absorbed by the body:

• carbohydrates
• proteins
• fats

carbohydrates, proteins and fats are polymers

polymers are broken down into monomers in a process called digestion

Digesting polymers to monomers

Indicating starch

• Chemical compounds that change appearance in the presence of other substances
• Used to indicate the presence of nutrients

indicator to prove the presence of starch

iodine solutions

Indicating glucose

• Chemical compounds that change appearance in the presence of other substances
• Used to indicate the presence of nutrients

indicator to prove the presence of glucose

benedict solutions

Indicating proteins

• Chemical compounds that change appearance in the presence of other substances
• Used to indicate the presence of nutrients

indicator to prove the presence of proteins

copper sulphate + sodium hydroxide

Time to choose

lab report

lab session

indicating nutrients

lesson 3

next week!

food diary

more information on classroom

check the link to voedingscentrum

TODAY'S LEARNING GOALS:

• I know what the various nutrients are broken down into.
• I know which versions of which nutrients are good for us and  where we get them from.

Time to choose

lab report

lab session

indicating nutrients

lesson 3

next week!

food diary

more information on classroom

check the link to voedingscentrum

In context question: 1

This picture shows a child in Africa suffering from Kwashiorkor, this deficiency disease causes the belly to swell up and all the joints to become painful. This his disease is cause by a lack of mother's milk in combination with eating too much rice.

A. What nutrients is this child lacking that are important for growth?

B. What nutrient does this child have an excess of?

In context question: 2

Breakfast is often a battle in most households. If parents can get their kids to eat a breakfast, they often want sweet sugary stuff.  It is much and much better for you to avoid the sweet cereals and go for the more savoury ones.

A. Explain why based on what you have learned today.

B. If you do not like cereal, what would be a healthy replacement (think of the nutrients).

HW FOR LESSON 3:

- Decide which project you want to do for a grade.

- Complete the notes for lesson 3 for next time.

- If you did not complete the in class assignments, these too.

- Choose a lab partner and prepare for the lab lesson by reading the instructions for the foodtests.