Honors Biology, Semester 1 exam review

the complete transfer of valence electron(s) between atoms

movement of biochemicals across cell membranes without need of energy input.

Used in photosynthesis and combines with CO2 to make glucose

Process by which particles tend to move from an are of high concentration to low concentration

The powerhouse of the cell

a process in which an intracellular vesicle moves to the plasma membrane

Positive, negative, and none are types of what

the sticking together of particles of the same substance

What type of cell is this

What is NOT a characteristic of life

Strong, supporting layer around the cell membrane in some cells

Substances that cannot be broken down into simpler substances

No charge

Process of diffusion in which molecules pass across the membrane through cell membrane channels

not "true fats" because they have one of the fatty acids replaced by a phosphate group

Posotively charged

Takes place in the thylakoids membranes during photosynthesis

the sticking together of particles of different substances

a network of membranous tubules within the cytoplasm of a eukaryotic cell

the group in an experiment or study that does not receive treatment by the researchers

Molecules that consist on long chains of nucleotides

Thin, flexible barrier that surrounds all cells; regulates what enters and leaves the cell

Happens in the Calvin cycle and converts CO2 into glucose

the movement across a cell membrane into a region of higher concentration, requiring energy.

What is Adenosine Triphosphate

Composed of long chains of one or more amino acids

a region on an enzyme that binds to a protein or other substance during a reaction

a chemical bond that involves the sharing of electron pairs between atoms

Above 7 on the Ph scale

What is this

A measure of acidity or basicnes of water soluble substances

Organic compounds found in food, such as sugars

Long strands of fatty acids

a region on an enzyme that binds to a protein or other substance during a reaction

Used in photosynthesis and combines with water to make glucose

a substance produced by a living organism that acts as a catalyst

Explanation that explains observations and hypotheses

an optical instrument used for viewing very small objects.

the basic unit of a chemical element

When a concentration of two soloutions are the same

She comparing two soloutions, the soloution with lesse concentration of solutes

a variable whose value depends on that of another

a type of bond that occurs when two atoms share a pair of electrons with each other

a cell transports molecules into the cell by engulfing them in an energy-using process

sugar that is an important energy source in living organisms

a substance that takes part in and undergoes change during a reaction

Process of noticing and describing events or processes in a careful, orderly way

What type of cell is this

A very large molecule

The center of an atom

a substance produced during a natural, chemical, or manufacturing process.

Negatively charged

Diffusion of water through a selectively permeable membrane

When comparing two soloutions, the solutions with the greater concentration of soloutes

the study of living organisms

An organism with no nucleus

Cell organelle consisting of RNA and protein found throughout the cytoplasm in a cell

An organism with a nucleus

Values below 7 on the Ph scale

of or relating to the poles of a cell, organ, or part

the group in an experiment that receives the variable being tested

organelle that captures energy from the sun and converts it into chemical energy

proteins involved in the movement of ions, small molecules, or macromolecules

Process that requires oxygen