Lecture 3: Cells Flashcards
1
Q
What is a nucleus?
A
Contains chromosomes that make up DNA.
2
Q
What is a mitochondria?
A
Produces energy for a cell.
3
Q
What is a chloroplast?
A
Photosynthesis occurs in here; contains chlorophyll.
4
Q
What is a vacuole?
A
Storage unit for water, salts, toxic products.
5
Q
What is the cell membrane?
A
Innermost layer surrounding the cell that controls what is absorbed or secreted by the cell.
6
Q
What is the cell wall?
A
Protects the cell and helps it maintain its shape and is very rigid.
7
Q
What is the primary cell wall made of?
A
Cellulose.
8
Q
What is the secondary cell wall made of?
A
Cellulose and lignin.
9
Q
What is the purpose of the secondary cell wall?
A
Additional protection for the cell.
10
Q
Where is the secondary cell wall located?
A
Formed within the cell wall and outside of the cell membrane.
