Acids and bases
A chemical compound with a positive or negative charge.
What is an ion?
The diffusion of water across a selectively permeable membrane
What is osmosis?
This is what makes up RNA
What are nucleotides?
The phase before mitosis and when the chromosomes duplicate.
What is interphase?
A linear scale from 0 to 14 that is a measure of the hydrogen ion concentration
What is the pH scale?
chemical compound that produces hydrogen ions, H+, when mixed with water.
What is an acid?
Things permeable to water.
What is the cell membrane and the cell wall.
What is the purpose of mitosis?
The phase when the chromosomes are visible and it is the first step of mitosis.
What is prophase?
A mixture of two or more substances that is homogeneous or the same throughout
What is a solution?
a chemical compound that produces hydroxide ions, OH- , when mixed with water and a low concentration of hydrogen ions.. It has a pH of 8 or higher.
What is a base?
The movement of substances in and out of a cell.
What the cell membrane determines?
transcribe and translate genetic code.
What is the role of RNA?
The phase when the chromosomes line up in the center of the cell.
What is metaphase?
The cellular organelle that contains DNA and RNA and is responsible for controlling many of the activities of the cell
What is the Nucleus?
When a base is added to an acid; the H+ and OH- ions combine to produce water, bringing the pH up to 7 (neutral)
What is a neutralization reaction?
Found in plant cells only.
What is chloroplast?
Code for a specific amino acid in a protein.
What is the function in RNA supposed to do?
The phase when the spindle fibers pull the sister chromatids apart from each other.
What is anaphase
The process of substances moving from areas of high to low concentration
What is diffusion?
Containing a weak base, such as magnesium hydroxide, can be used to neutralize stomach acid.
What is an atacid?
The powerhouse of the cell.
What is the mitochondria?
Version of a gene.
What is an allele?
The phase when the sister chromatids move on either side of the cell and become two new cells.
What is telophase?
Large molecule consisting of one or more chains of amino acids (polypeptides)
What are proteins