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Chapters 1 & 2
Introduction to Biology
| Question | Answer |
|---|---|
| What is an autotroph? | An organism that makes its own food |
| What is a heterotroph? | An organism that depends on others for food |
| Do all the cells of an organism have the same DNA? | Yes |
| What makes a bone cell different from a muscle cell? | Different DNA is activated |
| What is the purpose of an autotroph in the carbon/oxygen cycle? | To make oxygen |
| What cell carries oxygen to the rest of the cells in the body? | red blood cell |
| What cell fights infection in the body? | white blood cell |
| Why are heterotrophs important in the carbon/oxygen cycle? | To make carbon dioxide |
| What structure in protozoa helps maintain homeostasis by maintaining water balance? | contractile vacuole |
| What structure in an amoeba allows movement? | pseudopodia |
| What structure in paramecium allows movement? | cilia |
| What structure in sperm cells allows movement? | flagella |
| What structure in euglena allows them to find sunlight? | eyespot |
| How are prokaryotic and eukaryotic cells the same? | plasma membrane ribosomes cytoplasm DNA |
| How are prokaryotic and eukaryotic cells different? | prokaryotes have no nucleus, eukaryotes do have nuclei |
| How are the offspring produced by asexual reproduction different from the offspring produced by sexual reproduction? | Offspring produced by asexual reproduction are genetically the same |
| Sexual reproduction produces offspring that are | genetically different from each other or their parents |
| When a flea feeds on a dog, this is an example of | parasitism |
| Bubbles of gas produced by a plant under water are... | oxygen |
| The only living prokaryotic cells today are.... | bacteria |
| The only characteristic of life that is not needed by an organism is | reproduction |
| The exception to the cell theory and qualities of life are... | viruses |
| The part of the experiment that you leave alone and use for comparison is | the control |
| The part of the experiment that you change is called the | variable |
| If a scientist sees something or notices something during an experiment it is called | an observation |
| The end result of the experiment that is supported by the data and observations is called | the conclusion |
| The scientific tool used to see smaller organisms such as protozoa is a | light microscope |