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[ANSWERED 2022] Scientists perform an experiment in which they create an artificial cell with a selectively permeable membrane through which only water can pass

Scientists perform an experiment in which they create an artificial cell with a selectively permeable membrane through which only water can pass

QUESTION 1

  1. In previous units, you learned that a word ending in the suffix -ase is often an enzyme. Some snake venom contains the enzyme phospholipase. This enzyme is dangerous to human cells because it would break down the:
nucleus.
cell wall.
cell membrane.
ribosomes.
plasmid.

4 points   

QUESTION 2

  1. Consider a cell is in a solution containing 1% NaCl, 5% glucose, and 94% water. The interior of the cell contains .5% NaCl, 0% glucose and 99.5% water. The cell membrane is impermeable to NaCl. What will have to occur in order for equilibrium to be established?
Water will move out of the cell.
Water will move into the cell.
NaCl will move into the cell.
Water and glucose will move into the cell.
Water and NaCl will move into the cell.

4 points   

QUESTION 3

  1. What process occurs when a white blood cell “eats” a bacterium?
phagocytosis.
pinocytosis.
exocytosis.
osmosis.
passive transport.

4 points   

QUESTION 4

  1. Scientists perform an experiment in which they create an artificial cell with a selectively permeable membrane through which only water can pass. They inject a 7 M solution of glucose into the cell and then place the cell into a beaker of pure water. After an hour, what effect do you expect to observe?
Water moves out of the cell
Glucose moves out of the cell
No net change in cell weight
Water moves into the cell
Glucose moves into the cell

4 points   

QUESTION 5

  1. The interlocking mechanism of a Zip-Lock bag that blocks substances from leaving the bag, would most closely resemble which of the following cell junctions?
Desmosomes
Tight junctions
Aquaporins
Focal adhesions
Gap junctions

4 points   

QUESTION 6

  1. Match the following cell structure to the correct definition.
Generates ATP in all eukaryotic cells [K]
Cell supporting structures [F]
Digests worn out cell particles [C]
Site of protein synthesis [E]
Command center of the cell [I]
Allow for locomotion of a cell [H]
Contain catalase, which breaks down hydrogen peroxide   [J]
Stores water in plant cells
The post office of the cell
Semifluid matrix
A. Ribosome
B. Cytoplasm
C. Lysosomes
D. Golgi apparatus
E. Smooth endoplasmic reticulum
F. Cytoskeleton
G. Central vacuole
H. Flagella
I. Nucleus
J. Peroxisomes
K. Mitochondria
L. Chloroplasts

50 points   

QUESTION 7

  1. You found an organism in your yard and you are trying to figure out what type of organism it is. First, you have to determine if it is a eukaryote or a prokaryote. What characteristics would you look for to classify your organism?Your response must be at least 75 words in length.

QUESTION 810 points   

  1. Pretend you determined the organism in the previous question was a eukaryote. Explain how you would determine if the organism is a plant or animal?Your response must be at least 75 words in length. 10 points   

QUESTION 9

  1. Before people started questioning what they saw, it was assumed that since frogs hop out of ponds, frogs must come from mud. We now know this is a myth. Use your knowledge of the cell theory to explain why this is a myth.Your response must be at least 75 words in length.

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