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Question 1 of 16
1. Question
Which of these molecules could easily pass through a plasma membrane without the help of a protein channel?
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Question 2 of 16
2. Question
The phospholipid molecules of most cell membranes have:
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Question 3 of 16
3. Question
Assume the proteins in the membrane diagram only serve to transport materials across the membrane. What kind of membrane protein are they?
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Question 4 of 16
4. Question
The cell theory does NOT include:
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Question 5 of 16
5. Question
The anterior pituitary gland produces a lot of protein-based hormones, including human growth hormone. Knowing this, you would expect this gland to have a higher number of:
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Question 6 of 16
6. Question
Beginning with an mRNA molecule, what is the pathway of organelles used to synthesize and eventually release a protein outside the cell?
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Question 7 of 16
7. Question
In the ________________, molecules of glucose are converted to carbon dioxide in a process called ____________________. This generates high-energy molecules of _______ needed by the cell.
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Question 8 of 16
8. Question
Hydrogen peroxide is immediately broken down by enzymes in the _______________ because it is a _______________________and could damage the cell.
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Question 9 of 16
9. Question
Certain cells in the ovaries produce high amounts of estrogen and progesterone, which are lipid-based hormones. Which organelle would you expect to see more of in these cells?
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Question 10 of 16
10. Question
Sperm cells are the only human cells that move independently. What structure found in eukaryotic cells allows them to do this?
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Question 11 of 16
11. Question
Osmosis is different than diffusion because it:
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Question 12 of 16
12. Question
You place a strip of carrot in three solutions: hypertonic, hypotonic, and isotonic. After about a day, one of the carrot pieces is lighter and feels limp and rubbery. One of them is heavier and feels very rigid and firm. The other is in-between. Which of these is the most likely beaker that the carrot strips were in?
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Question 13 of 16
13. Question
The movement of substances from lower to higher concentration across a semi permeable membrane that must have a specific protein carrier and cell expenditure of energy is called:
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Question 14 of 16
14. Question
The movement of substances from higher to lower concentration across a semi permeable membrane that must have a specific protein carrier, but no energy expenditure is called:
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Question 15 of 16
15. Question
Cell Diagram Labeling – Match the parts of the cell indicated
- __mitochondria________________
- ____endoplasmic reticulum______________
- ___Golgi _______________
- ___cell membrane_______________
- ____nucleus______________
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Question 16 of 16
16. Question
This is a(n) _____________ cell.
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