Question

Fatty acids that are unsaturated have:

Select one:
a. an amino group
b. a double bond
c. an excess of protons
d. a carboxyl group

The following structure is solid at room temp with the maximum amount of hydrogens attached and has no double bonds. What is it?

Select one:
a. An unsaturated fat
b. A protein
c. A solute
d. A saturated fat

Although there are a limited number of amino acids, many different types of proteins exist because the

Select one:
a. size of a given amino acid in each protein can vary.
b. chemical composition of a given amino acid in each protein can vary.
c. sequence and number of amino acids in each protein is different.
d. same amino acid can have many different properties.

Which of the following cell parts is described as a "fluid mosaic"?

Select one:
a. chloroplast
b. vacuole
c. cell membrane
d. endoplasmic reticulum

Rank the following levels of organization from smaller to larger scale.

1. Macromolecule
2. Organelle
3. Cell
4. Organism
5. Atom
6. Molecule
7. Tissue
8. Organ

Select one:
a. 6, 5, 1, 2, 7, 3, 8
b. 1, 6, 5, 2, 3, 8, 7, 4
c. 5, 6, 1, 2, 3, 7, 8, 4,
d. 5, 6, 1, 3, 2, 8, 7, 4
e. 2, 3, 4, 1, 6, 5, 7, 8,

Which of the following statements about hypothesis testing is FALSE?

Select one:
a. A valid hypothesis should be testable and falsifiable.
b. Experiments should be designed to test whether an hypothesis can be rejected.
c. Experiments rely on variables and controls to test hypotheses.
d. Each variable being tested should have at least one control.
e. A control group should have as many distinct features as possible compared to the test group.

Answer 1

Fatty acids that are unsaturated have:

b, a double bond

The following structure is solid at room temp with the maximum amount of hydrogens attached and has no double bonds. What is it? d, a saturated fat

A saturated fat has saturated fatty acids which pack close to each other, and thus are solid at room temperature

Although there are a limited number of amino acids, many different types of proteins exist because the

c. sequence and number of amino acids in each protein is different

Proteins differ due to the sequence and number of amino acids.

Which of the following cell parts is described as a "fluid mosaic"?

c. cell membrane

Fluid mosaic model was given by Singer and Nicolson

Rank the following levels of organization from smaller to larger scale.

1. Macromolecule
2. Organelle
3. Cell
4. Organism
5. Atom
6. Molecule
7. Tissue
8. Organ

c.5,6,1,2,3,7,8,4