Quarter 3 practice quiz

When taking a test Honors Biology Students should

• Read all of the choices first

• Slash and trash two answers

• Choose the one that is most appropriate for Honors Biology

• All of the Above

Which of the following is/are properties of life?

• cellular organization

• DNA

• the ability to take in energy and molecules and use them (metabolism)

• the ability to reproduce

• All of the choices above are correct.

Generally speaking, there are just two types of cells on Earth, these are

• prokaryotic and Archaic cells

• prokaryotic and eukaryotic cells

• Plant and animal cells

• big and small cells

Organisms belonging to the plant kingdom

• are usually photosynthetic.

• contain cells that are surrounded by cell walls.

• are all unicellular.

• lack a nucleus.

• are usually photosynthetic and contain cells that are surrounded by cell walls.

A(n) ________ forms when two atoms share electrons.

________ are weak bonds that are not strong enough to hold atoms together to form molecules, but are strong enough to form bridges between molecules.

• Ionic bonds

• Covalent bonds

• Hydrogen bonds

In salad dressings, oil quickly separates from vinegar (which is mostly water) because oils

• a. are hydrophobic.

• b. are polar.

• c. are lipids.

• are both A and B.

• are both A and C.

Small insects are able to walk on water because of the cohesion of neighboring water molecules. This cohesion is caused by

• Hydrogen bonding.

• Ionic bonding.

• Covalent bonding.

In the equation 2 H2 + O2 → 2 H2O, the H2 molecules are ________ and the H2O molecules are________________.

• reactants . . . products

• products . . . reactants

• reactants . . . reactants

• products . . . products

A carbon atom has an atomic number of 6. How many covalent bonds can carbon typically form?

• 1

• 4

• 3

• 2