Assignment: Hypotonic And Isotonic.

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Assignment: Hypotonic And Isotonic.

Assignment: Hypotonic And Isotonic.

11. Which term does not belong in this list?

Acid

Vinegar

Hydrogen ion donor

pH 8

Lactic acid

12. The process in which molecules spread randomly from areas of higher concentration to areas of lower concentration is:

Filtration

Diffusion

Exocytosis

Osmosis

13. Organize the following solutions from most concentrated to least concentrated: hypertonic, hypotonic, and isotonic.

Hypotonic>Hypertonic>Isotonic

Hypertonic>Hypotonic>Isotonic

Hypertonic>Isotonic>Hypotonic

Isotonic>Hypotonic>Hypertonic

14. The rate of diffusion depends on which of the following?

The medium

The size of the molecule

The polarity

All of the above

A. and C. only

15.All of the following are examples of elements except

Oxygen

Water

Hydrogen

Carbon

16. What would happen to a eukaryotic cell, if too much osmotic pressure develops within a cell?

The cell would remain the same size, but the internal organelles would become dehydrated

The cell would decrease in size, and could collapse.

The cell would increase in size, and could lyse.

Nothing, osmotic pressure does not impact the cell.

17. Inthe following chemical reaction, what is carbon dioxide (CO2)?

12 H20 + 6 CO2= 1 glucose molecule + 6 O2

A. substrate

B. product

C. enzyme

D. activation factor

E. independent variable

18. The bond in which two atoms share one or more pairs of electrons is a_________ bond.

Polar

Hydrogen

Ionic

Covalent

19. Which of the following terms includes all of the chemical reactions that occur within a cell?

Cellular respiration

Catabolism

Redox reactions

Metabolism

Phosphorylation

20. Within a cell, energy released by electrons is often used to phosphorylate which of the following molecules?

ADP

ATP

Pyruvate ions

Oxygen

NAD

21. All of the following apply to glycolysis except

Occurs without oxygen

Degrades glucose to H2O and CO2

Ends with formation of pyruvic acid

Occurs during fermentation

22. In which of the phases of cellular respiration is the majority of ATP formed?

Processing of pyruvic acid for the Krebs cycle

Electron transport chain

Glycolysis

The Krebs cycle

All phases produce the same number of ATP molecules

23. The energy of the sun is converted into usable energy for the cell in the form of _________.

ATP

ATP

Glucose

CO2

24. The starting materials of photosynthesis are _____________

Oxygen and glucose

Carbon dioxide and oxygen

Carbon dioxide and water

Oxygen and water