Life Science
Chapter 3, part I Study Guide
Name____________________________
Hour____
Pg 74-78
1- As you read these 4 pages, complete the table below:
Type of Compound
Elements in the Compound
Functions of the Compound
Carbohydrate
Lipid
Protein
Nucleic Acid
2- What are elements?
3- What is a compound?
4- Give 2 examples of inorganic compounds. ___________________
_______________________
5- Why is water so important to cells?
6- What are carbohydrates?
7- What does your body make when it breaks down carbohydrates?
8- What are lipids?
9- What are proteins?
10- How are amino acids like the letters of the alphabet?
11- What do enzymes do?
12- What are the 2 kinds of nucleic acid? __________ & ___________
13- If a compound contains carbon, oxygen, and hydrogen could it be a protein? EXPLAIN.
Pg 80-85
1- What does selectively permeable mean?
2- What is diffusion?
3- Give an example of diffusion.
4- Why does it happen?
5- What is osmosis?
6- What happens to a cell if it is in a higher concentration of water?_____________________ In a low
concentration of water? ____________________ (figure 9)
7- What is passive transport?
8- How is active transport like riding a bike uphill?
9- Is engulfing active or passive transport? ____________
Explain.
For the Quiz , make sure you . . .
Can define: Carbohydrate, lipid, protein, passive transport, active transport, diffusion, osmosis
Know why fat is a good way for animals to store energy.
Can describe the difference between diffusion and osmosis
Understand why water is so important for cells
Know why we say that cell walls are “selectively permeable”
Can explain situations when a cell would need to use active transport