Characteristics of life
what are the 2 different types of reproduction
sexual and asexual reproduction
what is the chemical formula of water?
H2O
how do you neutralize an acid?
add OH-
what are the 4 major Macromolecules?
Lipids, Carbohydrates, Proteins, Nucleic acids,
what are 4 carbohydrates?
Sugars, starches, glycogen, and cellulose
which of the following isn't a characteristic of life?
a. using energy
b. reproduction
c. able to talk
d. made of cells
c. able to talk
what is the chemical formula of carbon dioxide?
CO2
how do you neutralize a base?
add H+
what are 4 carbohydrates?
sugars, starches, glycogen, cellulose
what is a monomer?
one sugar molecule called a monosaccharide
A plant growing toward light is an example of
a. reproduction
b. a response
c. development
d. a stimulus
d. a stimulus
How is a covalent bond formed?
when atoms share electrons
what is ph?
pH is the measure of H+ ion concentration in a solution. Conversely, pH is also indicative of the amount of OH- ion concentration in a solution.
what is a polymer?
Carbohydrates, proteins, Nucleic acid
what is a Disaccharide?
two sugar molecules bonded together
what are living things composed of?
a. at least 100 cells
b. at least a trillion cells
c. only one cell
d. one or more cells
d. one or more cells
how is an Ionic bond formed
when atoms are transferred from one atom to another
what Ph are acids?
less then 7
what is a Monomer?
sugars, amino acids, and nucleotides
what is a Polysaccharide?
many sugar molecules bonded together
list the 7 characteristics of life
1. Made of cells 5. Growth and Development
2. Metabolism 6. response to the environment
3. Homeostasis. 7. Evolution
4. Reproduction
what are the 3 subatomic particles and where are they located?
Proton - in the nucleus
neutrons - in the nucleus
electrons - in the outer shells
what do buffers do?
Buffers have the ability to maintain a relatively constant pH by counteracting extra H+ and OH- ions. They can take up excess ions as needed or release ions as needed.
Why is carbon such a big part of macromolecules?
Carbon is a special atom because it can make 4 bonds.
what is Glycogen?
animals can store carbohydrate in the form of glycogen for later use