Biology Module 3

Created by: Sundas Batool
Created on: 12-04-18 18:47

Explain how the alveoli create a surface for efficient gaseous exchange.

1. Wall is one cell thick for short(er) diffusion distance. 2. squamous, cells / epithelium , provide short diffusion distance 3.elastic so, recoil / expel air / helps ventilation ; 4. create / maintain, concentration gradient 5.large number (of a

1 of 5

Name the apparatus used to record the air movements.

Spirometer

2 of 5

When the rubber sheet is pulled down the balloons expand. Explain why the balloons expand.

1 volume, inside / of, jar increases ; 2 pressure inside, jar / balloons, decreases ; 3 to below pressure in atmosphere ; 4 (therefore) air, moves / pushed / forced, into, balloons / glass tube ;

3 of 5

Explain the meaning of the term tidal volume. Suggest how the teacher may have used the model to demonstrate tidal volume.

volume of air, inhaled / exhaled ; in, one / each, breath ; during, steady / regular, breathing.up / down, movements (of rubber sheet / band) ; idea of: small / steady / regular, movements (of rubber sheet).

4 of 5

Explain the meaning of the term vital capacity. Suggest how the teacher may have used the model to demonstrate vital capacity

the maximum volume of air ; inhaled / exhaled, in one breath. pulled down on rubber, sheet / band, as far as possible and pushed up as far as possible.

5 of 5

Other cards in this set

Card 2

Front

Name the apparatus used to record the air movements.

Back

Spirometer

Card 3

Front

When the rubber sheet is pulled down the balloons expand. Explain why the balloons expand.

Back

Card 4

Front

Explain the meaning of the term tidal volume. Suggest how the teacher may have used the model to demonstrate tidal volume.

Back

Card 5

Front

Explain the meaning of the term vital capacity. Suggest how the teacher may have used the model to demonstrate vital capacity

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Biology Module 3