General Science Mod 9
Order by
27 terms
Terms | Definitions |
|---|---|
 Atom | Smallest stable unit of matter in creation |
| Molecule | Two or more atoms linked together to make a substance with unique properties |
| Photosynthesis | The process where a plant uses sunlight and certain chemicals to make its own food |
| Metabolism | The process where a living organism takes energy from its surroundings and uses it to sustain itself, develop, and grow |
| Receptors | Special structures or chemicals that allow living organisms to sense the conditions of their surroundings |
| Cell | The smallest unit of life in Creation |
| The four criteria for life | 1) all life forms contain DNA; 2) all life forms take energy from their surroundings and convert it to energy to help them live; 3) all life forms can sense changes in their surroundings and respond to them; 4) all life forms reproduce |
| Compared to other molecules, is DNA big or small? | BIG |
| Does DNA store its information more efficiently or less efficiently than a computer? | More efficiently! |
| DNA is made up of two basic parts: the backbone and the nucleotides. A) Which part stores the information? B) Which part forms the double helix structure? | A) Nucleotides; B) Backbone |
| Which nucleotide will link to adenine? Which will link to cystosince? | adenine links to thymine, and cystosine links to guanine |
| One half of a portion of DNA has the following sequence: cystosine, guanine, adenine, guanine, thymine, thymine. What is the sequence of nucleotides on the other half of this portion? | Guanine, cystosine, thymine, cystosine, adenine, adenine |
| One half of a portion of DNA has the following sequence: thymine, guanine, cystosine, adenine, thymine, guanine. What is the sequence of nucleotides on the other half of this portion? | adenine, cystosine, guanine, thyamine, adenine, cystosine |
| What is the name of the chemical that plants make for food? | Glucose |
| What is the name of the chemical that plants store their food as? | Starch |
| What is a biosphere? | A living system that is isolated from its surroundings but continues to live and grow |
| Metabolism requires food and something else. What is that something else? | Oxygen |
| Metabolism produces energy, carbon dioxide, and what else? | Water |
| An organism's receptors no longer work. Which one of the 4 criteria of life will the organism not be able to perform? | Number 3 - To sense changes in their surroundings and respond to them |
| Consider the difference between a shark and an anchovy. Both are fish. The first is a fierce hunter that rarely is eaten by another animal. The second is a major source of food for many other fish in the sea. Which would you expect to have more babies: two shark parents or two anchovy parents? | Two anchovy parents (because they are eaten more quickly and need to replace themselves) |
| Every once in a while, a female cat will be born sterile. This means that the cat cannot have kittens. Does this mean that the cat is not alive, since it cannot reproduce? | No! (It's alive and has reproduction organs, but they just don't function correctly.) |
| Is the population of people on this earth becoming a problem? | NO! It will stay slow and steady. |
| How many kinds of cells are there? | Three (plant cell, animal cell, and bacteria) |
| Where is DNA stored? | In the nucleus |
| If a scientist uses a microscope to examine a cell from a mouse, a cell from a leaf, and a cell from a cat, how many different basic kinds of cells will she have? | Two (plant and animal) |
| How is information stored in DNA? | In a coded series of the four nucleotides (adenine, thymine, cystosine, and guanine) |
| What does DNA provide to a living organism? | Information necessary to take lifeless chemicals and turn them into a living system |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.