Atomic Structure
Water
pH
Characteristics of Life
Macromolecules
100

The charge of a proton is 

positive 

100

A single water molecule is held together by which type of bond?

Polar covalent bond

100
A pH of 7 would be considered __________
Neutral 
100

The basic unit of life

cell 

100

Nucleic acids are composed of

Nucleotides 

200

What are two major areas of an atom?

The nucleus and the electron cloud

200

Water is considered the ______________ solvent?

Universal Solvent 
200

A pH of 12-14 is considered

A strong base

200
A cell can be 

unicellular or multicellular 

200

What is the monomer of carbohydrates?

Monosaccharide 

300

What is an ion?

an atom that loses or gains electrons

300

Capillary action is caused by which properties of water?

Cohesion and adhesion together

300

A pH of 6 would be considered

A weak acid 

300

What is an example of a response to stimuli in a human?

overheating --> sweating 

loud noise --> jump 


300

Bones and muscle are made by which biomolecule?

Proteins

400

When would an atom be reactive

if it has less than 8 valence electrons in its outer shell

400

Water attaches to another water molecule through which type of bond?

Hydrogen bond

400

What type of solution keeps the pH of organisms constant by preventing changes in pH?

Buffer solutions

400

What is homeostasis?

regulation of an organism's internal environment to maintain conditions suitable for life

400

Can enzymes attach to any substrate or only to specific substrates?

Only specific substrates 

500

What is an isotope?

Atoms that have the same number of protons but different numbers of neutrons

500

Which property of water causes surface tension?

Cohesion

500

What happens when you mix an acid with a base?

Neutralization reaction
500

What are the characteristics of life? Name them. 

1. Grow and Develop

2. Reproduction 

3. Maintain Homeostasis

4. Made of one or more cells. 

5. Displays organization

6.  Requires Energy

7. Stimuli and response

8. Adaptations evolve over time 

500

Which monomer is made up of a sugar, a phosphate, and a nitrogen base?

Nucleotide