Leaving Certificate Biology Respiration 2 i Quiz FIRST

Leaving Certificate Biology Respiration 2 i. Quiz FIRST In Power. Point 2007 if you see a Security Warning click HERE on Options… and then click on Enable this content SECOND Press the F 5 Key to Begin, Then click on this Blue Box

Which of the following carbohydrates has the most carbon atoms per molecule? Sucrose Starch Maltose Glucose

If all green plants were to become extinct, which of the following would disappear first? Nitrogen Oxygen Carbon dioxide Water vapour

What is the approximate percentage of oxygen in the air we breathe out? 5% 20% 15%

When a molecule of oxygen is breathed into the body which of the following structures would it reach last? Pulmonary vein Bronchiole Alveolus Bronchus

What is the approximate percentage of oxygen in the air we breathe in? 10% 15% 20%

Which of the following is not connected with breathing? Alveoli Oesophagus Intercostal muscles Trachea

Taking air, containing 20% oxygen, into the lungs is also known as … Inspiration Breathing Cell respiration Expiration

Expelling air, containing 16% oxygen, from the lungs is also known as … Breathing Expiration Cell respiration Inspiration

Which of the following prevents food entering the larynx during swallowing? Bronchus Glottis Epiglottis Alveolus

ATP is used directly in which of the following processes? Growth Reproduction Respiration Excretion

Yeast cells during anaerobic respiration produce carbon dioxide and … Lactic acid Ethanol Water Citric acid

The purpose of respiration is to … Burn excess sugars Provide energy for cells Use oxygen in cells Produce carbon dioxide

Stage 1 of respiration is called … Lactic acid cycle NADH cycle Glycolysis Kreb’s cycle

In what part of the cell does Stage 1 of respiration take place? Ribosomes Nucleus Mitochondria Cytoplasm

In the presence of oxygen, pyruvic acid enters the mitochondria, loses a molecule of CO 2 and two hydrogen atoms to become … Lactic acid Acetyl coenzyme A Ethanol NADH

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