5.5 smell and 5.6 taste

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

5.5 smell

5.6 taste

What are the olfactory cells used for?

1. the exchange of gas molecules
2. clearing the nasal cavity of dust particles
3. they are used for the sense of smell
4. Clearing the bronchiole of dust particles

How do we call the sensory receptors of the tongue?

Why do we taste badly when we have a cold?

1. we do taste but because we feel ill our brain doesn’t register the flavours.
2. because the nasal cavity is full of snots and no chemicals get to the receptors
3. because the nerves are broken
4. the taste buds are covered with mucus

Mucus

Dust and germs get trapped

Cilia (little hairs) move it up your nose an throat

The nose:

- hairs filter out dirt

- snot catches dust and germs

our nose helps us to smell and to taste

if you  break your nose you could lose your sense of smell.

TO WHICH ORGAN SYSTEM DOES THE NOSE BELONG?

1. MUSCULAR
2. RESPIRATORY
3. CIRCULATORY
4. SKELETAL

Which cells hold onto the dust you inhale?

1. Olfactory cells
2. Mucus producing cells
3. Nose hairs
4. Ciliated cells

WHAT TYPE OF BREATHING IS BETTER FOR YOUR HEALTH?

1. BREATHING THROUGH YOUR NOSE
2. BREATHING THROUGH YOUR MOUTH

The Tongue:

Tongue is covered with taste buds.

Chemicals in your food and drink dissolve, this is is how your taste buds detect the taste.

The Tongue:

- we taste only five things: sweet, sour, salty, bitter, and umami.

- our nose does most of the tasting

- babies instinctively do not like bitter or sour flavours (protection) 

- your tongue is very strong and made up of 8 muscles

Which flavours can our
tongue individually taste?

to do

make exercise: 31, 32, 33