Download Name

Name__________________________________
Chapter 3 homework (1 point each)
1. Dehydration reactions _____. They do so by _____
a. link monomers to form a polymer … adding a water molecule
b. remove monomers from polymers … adding a water molecule
c. link monomers to form a polymer … removing a water molecule
d. remove monomers from polymers ... removing a water molecule
2. In a hydrolysis reaction, _____. In this process, water is _____.
a. a polymer breaks up to form monomers … consumed
b. a monomer breaks up to form polymers … produced
c. monomers are assembled to produce a polymer … consumed
d. monomers are assembled to produce a polymer … produced
e. a polymer breaks up to form monomers … produced
3. The four main categories of macromolecules in a cell are _____.
a. proteins, DNA, RNA, and steroids
b. monosaccharides, lipids, polysaccharides, and proteins
c. proteins, nucleic acids, carbohydrates, and lipids
d. nucleic acids, carbohydrates, monosaccharides, and proteins
e. RNA, DNA, proteins, and carbohydrates.
4. Which is the correct term for compounds that do not mix with water?
a. Phospholipids
b. Hydrophobic
c. Hydrophilic
d. Protein
e. hydrogen bonded
5. The alpha helix and pleated sheet represent which level of protein structure?
a. primary structure
b. secondary structure
c. tertiary structure
d. quaternary structure
e. pentiary structure
6. Match the monomer to the correct macromolecule (place the correct letter in the
blank)
a. Lipids
b. Carbohydrates
c. Proteins
d. Nucleic Acids
______nucleotides
______fatty acids and glycerol
______amino acids
______monosaccharide
7. A fatty acid containing at least two double bonds is called _____.
8. Which of the following sugars is found in RNA but not DNA?
a. D-xylose
b. Deoxyribose
c. Deoxyribulose
d. Ribose
e. ribulose
9. What are prions and how are they detrimental to organisms (what do they do
that’s so bad?)
10. Enzymes are critically important to proper cellular function. What are enzymes
and how do they influence reactions within a cell?
Ch 4 homework (1 point each)
1. There are 3 types of cellular junctions. What are they and what is their role?
2. Imaging you discovered a new type of cell unknown to science. What features
would you look for to determine if the cell was prokaryotic or eukaryotic?
3. What is the function of the 3 types of fibers found in the cytoskeleton and what
are their subunits?
4. What are the limits on which cell size depends?
a. the number of organelles
b. surface area-to-volume ratio
c. number of surrounding cells
d. amount of DNA in the nucleus
e. thickness of the cell membrane
5.
Bacterial cells are prokaryotic; unlike a typical eukaryotic cell, they _____.
a. lack a nucleus
b. have a smaller nucleus
c. lack a plasma membrane
d. have more internal membranous compartments
e. have a greater variety of organelles
6.
What is the function of the cytoskeleton (at least 2 things it does)?
7.
Which of the following is a function of the cell membrane?
a. Breaks down lipids, carbohydrates and proteins from foods
b. Stores water, salts, proteins and carbohydrates
c. Keeps the cell wall in place
d. Regulates which materials enter and leave the cell
8. Movement is important to cells. Describe 3 ways cells move.
9. Match the following
A)
B)
C)
D)
E)
Golgi Apparatus
Smooth ER
Rough ER
Ribosomes
Lysosomes
F) Mitochondria
1. __________ synthesizes lipids, detoxifies, and stores calcium
2. __________ makes proteins and membrane phospholipids
3. __________ finished, sorts and ships cell products
4. __________ makes most of the cell’s ATP
5. __________ breaks down damaged organelles
10. Label each organelle