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Biology
Surface area to volume ratio
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Created by
Joe Dobson
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Cards (31)
Why can single-celled bacteria rely on diffusion?
They have a high
surface area to volume ratio
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What do large multicellular organisms require for substance exchange?
Specialized
exchange
surfaces
and
transport systems
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What resources do single-celled organisms need to absorb?
Oxygen
,
glucose
, and amino acids
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What waste product do single-celled organisms need to eliminate?
Carbon dioxide
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What does the surface area to volume ratio measure?
Comparison
of
surface area
to
internal volume
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What happens to the surface area to volume ratio as organisms get larger?
It
decreases
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How is the surface area of a cube calculated?
Area of one face
multiplied
by six
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What is the surface area of a 1 cm cube?
6
square centimeters
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What is the volume of a 1 cm cube?
1
cubic centimeter
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What is the surface area to volume ratio of a 1 cm cube?
6 to 1
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What is the surface area of a medium cube with a volume of 8 cm³?
24
square centimeters
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What is the surface area to volume ratio of the medium cube?
3 to 1
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What is the surface area of the largest cube with a volume of 27 cm³?
54
square centimeters
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What is the volume of the medium cube?
8
cubic centimeters
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What is the volume of the largest cube?
27
cubic centimeters
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What is the surface area to volume ratio of the largest cube?
2 to 1
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How does the surface area to volume ratio change from the smallest to the largest cube?
It decreases from
6
to
1
to 2 to 1
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Why do larger organisms need specialized exchange surfaces?
To increase their
surface area to volume ratio
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What is the role of villi in the intestines?
To absorb
nutrients
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How does diffusion distance change in larger organisms?
It
increases
significantly
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How much further do molecules have to diffuse in humans compared to bacteria?
50,000
times further
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What transport system do larger organisms often have?
The
circulatory system
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What do plants use to exchange substances with the environment?
Roots and leaves
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What tissues do plants use to transport substances?
Phloem
and
xylem
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What does the term "large organisms" refer to?
Anything visible to the naked eye
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Who is the presenter of the video?
Amadeus
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What does the learning platform offer?
Videos, practice questions, and
progress tracking
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Is the learning platform free?
Yes, it is completely free
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Where can you find the link to the lesson?
In the
description
below
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What is the purpose of the playlist mentioned?
To organize all
videos
for the
subject
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What is the final message of the video?
Hope you
enjoy
and
see
you
next
time
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