Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question
Answer all pf the questions thanks
Transcribed Image Text:Orte
ent
movement when thermal motion or
How can pressure, size of the molecule, and viscosity affect the rate of diffusion,
respectively?
Transcribed Image Text:Analyze Figure 3.7 and come up with comparisons regarding the difference in the
concentration of water surrounding the red blood cell. Describe its overall effect on the cell.
Complete the table below.
Relative Concentration
Effect on Cell from Having
This Environment
Hypertonic
H₂O
Hypertonic
Isotonic
(high, low, equal) (shrink, enlarge, same)
ele, Jeaune
Isotonic
1.916 C
H₂O
H₂O
Hypotonic
Figure 3.7. Effect of different solutions on blood cells.
Hypotonic
(shrink, enlarge,
same)
Since a plant cell is surrounded by a cellulose-rich cell wall and its inside has a large
central vacuole, what will happen when it is placed in a hypotonic solution?
Active Transport
When the cell needs nutrients at a higher concentration than it typically receives or at a
faster rate than what simple diffusion can offer, it utilizes additional metabolic energy against
the concentration gradient to move molecules across the membrane. This process is known as
active transport.
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