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| Question | Answer |
|---|---|
| diffusion | the passive movement of molecules from higher to lower concentration |
| hypertonic | a solution outside a cell is called hypertonic if it has a greater concentration of solutes than the cytosol inside the cell |
| Explain why the color change occurs in Benedict’s only after heating. | The copper (II) ions in the Benedict's solution are reduced to Copper (I) ions, which causes the color change |
| What six things must every graph have | X and y axis, spread out the data, title, dont connect to zero unless zero is in the data, scale, and identify independent and dependent variables. |
| What are the 8 life processes? Describe each. | Metabolism (converting food to energy), nutrition (obtaining and processing of food), transport (absorption and circulation of materials around the body), cellular respiration (the process by which organisms combine oxygen with glucose to make energy), sy |
| What are the two types of respiration? Describe each. | Aerobic and anaerobic. Aerobic is with air, and anaerobic is without air. |
| Cellular respiration | CO2 + H2O C6H12O6 + 6O2 |
| Name the four organic molecules and their building blocks. | Proteins- amino acids, carbohydrates- monosaccharide, lipids- 3 glycerol and 1 fatty acid, nucleic acids- nucleotides. |
| What are the jobs of proteins? | Build and repair damaged cells |
| What is peristalsis?Define alveoli and explain their function. | the involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wave-like movements that push the contents of the canal forward |
| What is the heterotroph hypothesis? | The heterotroph hypothesis suggests that the first cells were likely heterotrophic and would have fed on organic molecules that had been made without cells |
| What are the three parts of the Cell Theory? | All living things are made up of cells, Cells are the smallest units (or most basic building blocks) of life, and All cells come from preexisting cells through the process of cell division. |
| Why are red blood cells so important? | they transport oxygen |
| WHat is hemoglobin | Hemoglobin is a protein in your red blood cells that carries oxygen to your body's organs and tissues and transports carbon dioxide from your organs and tissues back to your lungs |
| Define alveoli and explain their function. | The tiny air sac of the lungs that allows gaseous exchange |
| What is the function of the excretory system? | To remove liquid waste from the body |
| Cerebrum | The largest part of the brain, the cerebrum initiates and coordinates movement and regulates temperature. |
| cerebellum | motor control center; In particular, it is active in the coordination, precision and timing of movements, as well as in motor learning. |
| Spinal cord | communication between the body and the brain |
| What can affect the expression of genes? | environmental factors |
| Explain how recombinant DNA is used to create artificial insulin for diabetics. | insert the human insulin gene into the plasmid. Researchers return the plasmid to the bacteria and… put the “recombinant” bacteria in large fermentation tanks. There, the recombinant bacteria use the gene to begin producing human insulin. |
| Describe the process of gel electrophoresis. | Gel electrophoresis is a technique used to separate DNA fragments according to their size. This happens when DNA samples are loaded into wells (indentations) at one end of a gel, and an electric current is applied to pull them through the gel. |
| Survival of the fittest | organisms that have resources survive, and the ones without resources don't survive |
| Vestigial Structures | structures that have no apparent function |
| Analogous Structures | structures that are similar in unrelated organisms |
Created by:
keira delaney
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