BIOLOGY 8.3 (FORM 4)

​BREATHING?

HAVE YOU EVER WONDER WHY DO WE BREATHE OUT CARBON DIOXIDE WHILE WE INHALE OXYGEN?

Multiple Choice

The air sacs that are covered with capillaries where gas exchange takes place

• trachea

• bronchi

• alveolus

• lungs

Multiple Choice

When you breathe, you inhale ____ and exhale ____

• air/oxygen

• waste/air

• carbon dioxide/waste

• oxygen/carbon dioxide

Multiple Choice

What are the products of cellular respiration?

• Energy (ATP), Water, and Carbon Dioxide.

• 
  Oxygen and Carbon Dioxide

• 
  Water and Oxygen

• 
  Water and Energy (ATP)

Gas exchanges in the lung - Download Free 3D model by BrainStation (@Sohila.Lotfy) [1568521] - Sketchfab

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Word Cloud

What can you say from looking and exploring at the VR?

​Watch this video!

https://youtu.be/BShB8_1oCGk?si=oX9_dRisgVxgq2qY

Word Cloud

Based on the video, what have you observed?

Draw

Fill in the blank to complete the equation

Draw

Based on the diagram, label the area with

-high partial pressure of oxygen as A

-low partial pressure of carbon dioxide as B

-pulmonary artery as C

-pulmonary vein as D

Open Ended

With your own words, list out today's lecture keywords

Multiple Choice

Which of the following reactions occur in erythrocytes in the pulmonary capillaries?

• Hb + CO2 → HbCO2

• H2CO3 → H+ + HCO3 -

• Hb + O2 → HbO2

• HbO2 → Hb + O2

Multiple Select

Choose ALL the correct conditions for the gaseous exchange to occur?

• Higher to lower partial pressure

• Lower to higher partial pressure

• By simple diffusion

• Against the concentration gradient

Multiple Choice

What happens to the oxygen after diffuses into the red blood cell in the lungs capillary?

• Binds with haemoglobin to form oxyhaemoglobin

• Binds with CO2 to form carbaminohaemoglobin

• Dissolve in cytoplasm

Multiple Choice

Carbon dioxide diffuses from the lung capillaries into the alveolus because the partial pressure of CO2 is lower in the lung capillaries compared to alveolus.

• TRUE

• FALSE

Multiple Choice

What is the % of carbonic acid that will turn into bicarbonate ions of the total CO2 in the body?

• 7

• 23

• 15

• 70