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Biology EOC Review Week 1
Terms in this set (34)
Cell theory was first proposed in 1838. Evidence obtained through additional scientific investigations resulted in the current cell theory. What statement describes a component of the original cell theory that was removed because of the new scientific knowledge?
Cells form through spontaneous generation
Which invention from the 17th century allowed for the development of modern cell theory?
the light microscope
A plant and an animal are both living things. According to the Cell Theory, what can you conclude about these two very different organisms?
They are both made of one or more cells
The combined observations of Mattias Schleiden, Theodoe Schwann, and Rudolph Virchow resulted in the formation of the cell theory. Which of the following is not part of the cell theory?
All cells contain a nucleus
There are some similarities between prokaryotic and eukaryotic cells. Which of the following structures is found in both prokaryotic and eukaryotic cells?
What type of transport is it called when H+ ions are being pumped from a low concentration to a high concentration across the cell membrane?
What type(s) of cells have genetic material that is contained in a nucleus?
Both plant and animal cells
What characteristic do most plants have in common?
They are autotrophic
What is the ribosomes primary function?
Main source of protein synthesis
Solar energy is used to produce energy-rich compounds in which structure of the cell of a green plant?
A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases. What has occurred?
The water in the gums has moved out due to the high concentration of salt in the solution
What organelle of a cell is the site where amino acids are synthesized into proteins?
What structure of the cell forms a boundary between a cell and the outside environment, controls the movement of materials into and out of the cell, and consists of double later of phospholipids?
What type of cell is surrounded by a rigid coat of cellulose, contains mitochondria and chloroplast, and has DNA?
A plant cell
If particles are moving from high concentration to low concentration using a carrier protein, how would this type of movement be described?
The cell membrane of the red blood cell will allow water, oxygen, and carbon dioxide to pass through. Because other substances are blocked from entering, this membrane is called _____________
If a beaker containing a 30% salt solution and a suspended cell containing 10% salt solution, what best describes the cell after 20 minutes?
Water will move from the cell into the beaker, resulting in a smaller cell.
Muscle cells are responsible for obtaining energy so the body can perform voluntary and involuntary movement. Using your knowledge about organelles and muscles, how would a muscle cell differ from other types of animal cells?
The muscle cell would have more mitochondria than the other types of animal cells.
Cells found in plants and animals have similarities but can differ in function. Consider the following two organisms: a corn plant cell and a camel cell . What is the best explanation for the difference in the cellular vacuole size between these two biotic organisms?
The camel cells' have a small vacuole size because it does not need long term water and electrolyte storage.
Cells can be classified into two different categories: prokaryotic and eukaryotic. What information is needed in order to determine if an organism is prokaryotic?
The organism's internal structures.
A specific type of cell is being studied by a scientist. She notices the cell contains a nucleus, lysosomes, a cell membrane and cell wall. What is the classification of this cell?
A eukaryotic plant cell
Using a microscope in the science lab, Jill observed two unknown cells: Cell 1 and Cell 2. Cell 1 she identified as a plant cell and Cell 2 as an animal cell. Her teacher told her she identified the cells correctly. What did Jill most likely observe to correctly identify the cells?
Cell 1 had a cell wall and Cell 2 did not
What type of cell contains a complex, membrane-bound organelles?
How can you determine whether cells are prokaryotic or eukaryotic?
Look for the cell nuclei
What is the name of the macromolecule that makes up the majority of the cell membrane?
What is the advantage of cells being so small?
The cell then has a larger surface area to volume ratio which means it can move nutrients into the cell and waste out more efficiently
The rough endoplasmic reticulum is a cell structure that consists of folded membranes that contain ribosomes. What is the advantage of the folded membranes?
Increases surface area in order to produce more proteins
If a cell's lysosomes were damaged, what would most likely occur?
The cell would be less able to break down molecules in its cytoplasm
When Streptococcus pnuemoniae are exposed to an antibiotic, the bacteria try to pump the antibiotic out of their cells. What mechanism is most likely used by the Streptococcus pnuemoniae to pump the antibiotic out of their cells?
In pure water, a red blood cell formed from an animal will swell and burst, but a leaf cell from a plant will not. What structure in the leaf cell is responsible for this difference?
What function does active transport perform in a cell?
Moving substances against a concentration gradient
Carrot sticks that are left in a dish of freshwater for several hours become stiff and hard. Similar sticks left in a saltwater solution become limp and soft. From this we can deduce that the freshwater is ____________ and the saltwater is ____________ to the cells of the carrot sticks.
In an emergency trauma room, a doctor accidentally gives a patient a large transfusion of distilled water directly into one of his veins instead of blood. Predict what might happen if distilled water was given to the patient instead of blood.
Have serious, perhaps fatal effects because the red blood cells would tend to burst
A beaker is divided into two halves, A & B, by a membrane that is freely permeable to the water and NaCI but not to protein. Side A is half-filled with a solution of 8% protein, while side B is half filled with a 2% protein solution. Predict what would happen to side A after a few hours.
The number of water molecules has increased.
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