The energy located in the bonds of food molecules:
-is a form of potential energy
-can be transformed to the bonds of ATP
Water (H2O) = 2+16 = 18 total mass
Ammonia (NH3) = 14+3 = 17
Carbonic acid (H2CO3) = 2+12+48 =62
Questions in Class:
When movement of Na+ ions down their concentration gradient drives the transport of other substances across the cell membrane, it is called _________.
secondary active transport
Cells that store large quantities of chemicals to be released do so in structures called ________.
Questions in Class
What is the fluid component between the plasma membrane and nuclear envelope called?
Cytoplasm.
Which organelle contains enzymes that detoxifies harmful substances?
peroxisomes
In areas of the body exposed to the external environment and pathogens, such as in the lungs, which type of vesicular transport would you expect to be most prevalent?
Intensely biosynthetic secretory cells such as neurons would be expected to have greater amounts of ________ than other cells.
Rough ER
Which of the following cell types does not possess a nucleus at maturity?
Red blood cells
What protein complex holds newly replicated chromatin strands together?
The ______ stage of the neuron cell cycle is the reason that permanent muscle paralysis occurs.
sketch a organelle, label, know what they are for the quiz
Which is not a function of CAMs?
Maintains the membrane potential
2H+ and H2
Heat is:
-thermal energy
-infrared radiation
-directly related to kinetic energy
-a result of the energy conversions
2H+
H2
is a molecule of an element.
Whenever energy is transformed:
-some energy is lost as heat
-the amount of useful energy decreases
Basic Atomic Symbols
Facts on Atoms and Elements
Oxygen: O
Carbon: C
Potassium: K
Iodine: I
Hydrogen: H
Nitrogen: N
Calcium: Ca
Sodium: Na
Phosphorus: P
Magnesium: Mg
Chloride: Cl
Iron: Fe
1. An electrically charged atom or group of atoms: Ion
2. Anything that takes up space and has mass (weight): Matter
3. A unique substance composed of atoms having the same atomic number: Element
4. Negatively charged particles, forming of an atom: Electrons
5. Subatomic particles that determine an atom's chemical behavior. or bonding ability: Electrons
6. The ability to do work: Energy
7. The smallest particle of an element that retains the properties of the element: Atom
8. The smallest particle of a compound, formed when atoms combine chemically: Molecule
9. Positively charged particles forming part of an atom: Protons
10. The combining power of an atom: Valence
11. two answers:
12. subatomic particles responsible for most of an atom's mass: Protons and Neutrons
Energy Forms
H2O2 and 2HOH-
H2O2
is a molecule of a compound
1. Found as a salt in bones and teeth: Calcium and Phosphorus
2. Makes up more than 96% of the mass of a living cell:Carbon, Oxygen, Hydrogen, and Nitrogen
3. Essential for transport of oxygen in red blood cells: Iron
4. Essential cations in muscle contraction: Calcium, Sodium, and Potassium
5. Essential for production of thyroid hormones: Iodine
6. Present in nucleic acids (in addition to C, H, O and N): Phosphorus
7. The most abundant negative ion in extracellular fluids: Chloride
2HOH-
BASICS OF THE ATOM
1. Concentration expressed in moles: Molarity
2. Components are physically, not chemically, combined: Mixture
3. Homogeneous combination of solvent and solute(s): Solution
4. Large particles can settle out unless constantly mixed: Suspension
5. Large particles will not settle out: Colloid
6. Exhibits the sol-gel phenomenon: Suspension
7. An example is sand and water: Suspension
Chewing food: mechanical
Vision: electrical and radiant
bending your fingers to make a fist: mechanical
breaking he bonds of ATP molecules to energize your muscle cells to make the fist: chemical
lying under a sunlamp: radiant
Particle: proton
Location: nucleus
Electrical charge: +1
Mass: 1 amu
Particle: Electron
Location: nucleus
Electrical charge: -1
Mass: 1 amu
Particle: neutron
Location: nucleus
Electrical charge: 0
Mass: 1 amu
2O2- and O2
2O2-
O2
is a molecule of an element.