Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Combined Sets
Semester 1 Test pg 1+Semester Test 1 pg 2
| Term | Definition |
|---|---|
| Observing | The process of using one or more of your senses to gather information |
| Variable | a factor in an experiment that can change and is being tested |
| Control | the factor unchanged in an experiment |
| Qualitative | an observation that deals with characteristics that cannot be expressed in numbers. |
| Quantitative | an observation that deals with a number or amount |
| Unicellular | made of a single cell |
| Multicellular | consisting of many cells |
| Stimulus | a change in an organism’s surrounding that causes the organism to react |
| Response | an action or change in behavior that occurs in reaction to a stimulus |
| Homeostasis | the maintenance of stable internal conditions in an organism |
| Cell Wall | a rigid layer of nonliving material that surrounds the cells of plants |
| Cell Membrane | the outside cell boundary that controls which substances can enter or leave a cell |
| Nucleus | the control center of a eukaryotic cell that directs all the cell’s activities, brains of the cell |
| Cytoplasm | the material within a cell apart from the nucleus, the goo |
| Mitochondria | rod shaped cell structures that convert energy in food molecules to energy the cell can use, powerhouse of the cell |
| Endoplasmic Reticulum | a cell structure that forms passageways in which proteins and other materials that are carried through the cell, transportation system |
| Ribosome | a small grain-like structure in the cytoplasm of a cell where proteins are made |
| Chloroplast | a structure in the cells of plants that captures energy from sunlight and uses it to produce food |
| Vacuoles | a sac inside a cell that acts as a storage area |
| Lysosomes | a small, round cell structure containing chemicals that break down large food particles into smaller ones; the cleanup crew |
| Diffusion | the process by which molecules move from an area of higher concentration to an area of lower concentration |
| Osmosis | the diffusion of water molecules through a selectively permeable membrane |
| Active Transport | the movement of materials through a cell membrane using energy |
| Mitosis | the stage of the cell cycle during which the cell’s nucleus divides into two new nuclei and one copy of the DNA is distributed into each daughter cell |
| Cell | the basic unit of structure and function in living things |
| Tissue | a group of similar cells that perform the same function |
| Organ | a structure in the body that is composed of different kinds of tissue |
| Organ System | a group of organs that work together to perform a major function in the body |
| Organism | a living thing |
| Digestion | the process by which the body breaks down food into small nutrient molecules |
| Metabolism | all chemical activities that occur within an organism |
| Ingestion | taking in of food |
| Respiration | the process by which cells break down simple food molecules to release the energy they contain |
| Excretion | the process by which wastes are removed from the body |
| Reproduction | process by which living things give rise to the same type of living thing |
Created by:
tclarken