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Aerobic Respiration 2024 Questions and Answers 100% Accurate
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Aerobic Respiration 2024
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Aerobic Respiration 2024What process is known as respiration? - answer All organisms are made of cells and
energy is vital to power the many processes a cell carries out. This energy is released in
a series of enzyme-catalyzed reactions known as respiration.
What is respiration the release of? - answer Respiration is the release of energy from
food molecules that acts as fuel for the cell.
What three things require a great deal of energy? - answer Cells that are more active
have higher energy requirements. During exercise the muscles contract to cause
movement and this needs a lot of energy from respiration. Growing and dividing cells
also needs a lot of energy to power the building of new cell materials.
In aerobic respiration how is oxygen used? - answerIn aerobic respiration oxygen is
used to release energy from molecules such as glucose. The glucose and oxygen are
converted into carbon dioxide and water and energy is released for use in the cell.
Describe the process of diffusion. - answerIn humans, the glucose and oxygen needed
for respiration are carried around the body into tissues by blood. As well as carrying
glucose and oxygen, blood must also carry waste carbon dioxide away from respiring
cells and tiny blood vessels called capillaries by a process called diffusion.
When does diffusion occur? - answerDiffusion occurs when particles of a substance
spread out, moving from an area where they are in higher concentration to an area
where they are in lower concentration.
How do the particles diffuse? - answerThe particles diffuse down a concentration
gradient.
In respiring cells, oxygen and glucose levels fall as... - answerthey are used up in
aerobic respiration. At the same time, carbon dioxide levels in the cells rise.
Describe a feature of lung tissue. - answerLung tissue is spongy and full of tiny air sacs
(alveoli).
What are the air sacs surrounded by? - answerCapillaries and oxygen that enters the
body through the lung moves into the blood by diffusion into the air spaces
What do you mean by gas exchange? - answerAs one gas is entering the bloodstream
another one is leaving it; this is called gas exchange.
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