Term
|
Definition
| ________ occurs when an object or wave bounces back off a surface through which it cannot pass. |
|
|
Term
|
Definition
| A mirror with a surface that curves inward like the inside of a bowl is a ________ |
|
|
Term
|
Definition
| All waves obey _____________. The _________ states that the angle of incidence equals the angle of reflection. |
|
|
Term
|
Definition
| The bending of light waves due to a change in speed known as _________. |
|
|
Term
|
Definition
| A ________ material transmits most of the light that strikes it. When light hits the particles of a _________ material, the particles absorb it but then reemit it, or send it back out, until the light finally passes through to the other side. |
|
|
Term
|
Definition
| A __________ material scatters light as it passes through, just as smoke, fog, and clouds scatter light as it passes through the air. |
|
|
Term
|
Definition
| An _______ material reflects or absorbs alll of the light that strikes it. |
|
|
Term
|
Definition
| the electromagnetic waves with the longest wavelengths and the lowest frequencies are __________. |
|
|
Term
|
Definition
| The ________ is the complete range of electromagnetic waves placed in order of increasing frequency. The __________ is made up of radio waves, infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays. |
|
|
Term
|
Definition
| A ______ transfers electrical and magnetic energy. An ______ consists of vibrating electric and magnetic fields that move through space, at the speed of light. |
|
|
Term
|
Definition
| To look at small, nearby objects you can use a ________. A ______ is an optical tool that makes small objects look larger. A _________ uses a combination of lenses to form enlarged images of tiny objects. |
|
|
Term
|
Definition
| An _____ is a group of organs that work together to perform a major function. |
|
|
Term
|
Definition
| ________ is the process by which molecules move from an area of high concentration to an area of lower concentration. |
|
|
Term
|
Definition
| ________ are small, round structures containing chemicals that break down certain materials in the cell. |
|
|
Term
|
Definition
| ________ are the storage area of the cell, floating in the cytoplasm. |
|
|
Term
|
Definition
| ________ are known as the "powerhouses" of the cell because they convert food into energy. (rod shaped) |
|
|
Term
|
Definition
| The control center of the cell, called the _______, is a large, oval structure. |
|
|
Term
|
Definition
| After passing through the cell wall, the next barrier you must cross is the ___________. The _________ forms outside boundary that separates the cell from its environments. |
|
|
Term
|
Definition
| A rigid layer of nonliving material that surrounds the cells of plants and some other organisms is called a _________. |
|
|
Term
|
Definition
The ________ is a widely accepted explanation of the relationship between cells and living things. The ______ states the following:
* all living things are made of cells
*cells are the basic units of structure and function in living things
*cells come from other cells |
|
|
Term
|
Definition
| The set of information that controls a trait; a segment of DNA on a chromosome that codes for a specific trait. |
|
|
Term
|
Definition
DNA
A T C G C T T A
T A G C G A A T
tRNA
C A G G A U C C G
G U C C U A G G C |
|
|
Term
|
Definition
| Deoxyribonucleic Acid; the genetic material that carries information about an organism and is passed from parent to offspring |
|
|
Term
|
Definition
| The cell makes an exact copy of the DNA in its nucleus in a process called ______. |
|
|
Term
|
Definition
| The regular sequence of growth and division that cells undergo is known as the ________. |
|
|
Term
|
Definition
| _______ is the stage during which the cell's nucleus divides into two new nuclei. During _______, one copy of the DNA is distributed into each of the two daughter cells. |
|
|
Term
|
Definition
| ________ is the process by which cells obtain energy from glucose. |
|
|
Term
|
Definition
| The process by which a cell captures energy in sunlight and uses it to make food is called _________. |
|
|
Term
|
Definition
| An organism that has two different alleles for a trait; an organism that is heterozygous for a particular trait |
|
|
Term
|
Definition
| the different forms of a gene |
|
|
Term
|
Definition
| A chart that shows all the possible combinations of alleles that can result from a genetic cross |
|
|
Term
|
Definition
| An organisms genetic makeup, or allele combinations |
|
|
Term
|
Definition
| An organisms physical appearance or visible traits |
|
|
Term
|
Definition
| Having two identical alleles for a trait |
|
|
Term
|
Definition
| Having two different alleles for a trait |
|
|
Term
|
Definition
| The process that occurs in the formation of sex cells (sperm and egg) by which the number of chromosomes is reduced by half |
|
|
Term
|
Definition
| A doubled rod of condensed chromatin |
|
|
Term
|
Definition
| RNA that copies the coded message from DNA in nucleus and carries it to the cytoplasm. |
|
|
Term
|
Definition
| RNA in the cytoplasm that carries an amino acid to the ribosome and adds to the growing protein chain. |
|
|
Term
|
Definition
| A change in a gene or chromosome |
|
|
