BIOLOGY NOW-ACCESS (HS)
2nd Edition
ISBN: 9780393631531
Author: HOUTMAN
Publisher: NORTON
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Chapter 4, Problem 7TQ
Summary Introduction
Diffusion is a process of movement of solute particles in a solution from the gradient of higher to lower concentration. Simple and facilitated diffusion are common types of diffusion found in a cell transport system through plasma membrane. A drop of ink or dye in a beaker of water diffuses randomly is a best diffusion type. Gradient change may be of pressure, distance or temperature.
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Day 3-A: Venn Diagram
Directions: Using the Venn diagram, describe a pure substance using the properties of elements and
compounds. Write only the letters corresponding to your responses.
PURE SUBSTANCE
ELEMENTS
COMPOUNDS
A. It is the simplest form of matter..
B. It cannot be separated into simpler components by chemical means.
C. It is made by two or more elements combined.
D. It serves as the building block of other substances.
E. Examples are oxygen, hydrogen, carbon, and gold.
F. It can be separated into simpler substances by chemical means.
G. It is represented by a chemical formula.
H. Examples are water, sugar, salt, and baking soda.
3
Describe in details the two molecular processes in steroid and peptide action
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