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Chapters 1 & 2

Introduction to Biology

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
Created by: cindy.martin



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