Name: 
 

Unit Final Review



True/False
Indicate whether the sentence or statement is true or false.
 

1. 

Osmosis is the movement of water from high concentration to low concentration across a semi permeable membrane
 

2. 

Passive transport is the movement of molecules from low concentartion to high concentation across a selectively permeable membrane
 

3. 

The membrane that surround an egg (that was exposed during the egg at home lab) is an impermeable membrane.
 

4. 

In a lab report, procedures are always numbered and materials use bullets
 

5. 

NaOH was used to remove oxygen from the air in the carbondioxide lab
 

6. 

In the structure of a leaf, the palisade and spongy cells can carry out photosynthesis
 

7. 

Benedict's solution is an indicator for starch
 

8. 

Limewater as an indicator for carbondioxide.
 

9. 

The Hypothesis is always a question.
 

10. 

Transpiration is the unavoidale loss of oxygen from the leaves.
 

Modified True/False
Indicate whether the sentence or statement is true or false.  If false, change the identified word or phrase to make the sentence or statement true.
 

11. 

Plants use energy from the sun to produce carbon dioxide and sugars. _________________________

 

12. 

A heterotroph is an organism that cannot make its own food. _________________________

 

13. 

Photosynthesis and respiration form a cycle that keeps the levels of water and carbon dioxide fairly constant in the atmosphere. _________________________

 

14. 

The raw materials for respiration are the opposite of the end products for photosynthesis. _________________________

 

15. 

When muscle cells run low on oxygen, lactic acid fermentation takes place. _________________________

 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

16. 

What are the products of photosynthesis?
a.
carbon dioxide and water
b.
oxygen and water
c.
carbon dioxide and sugars
d.
oxygen and sugars
 

17. 

What happens during photosynthesis?
a.
The cell uses oxygen to make food.
b.
The cell uses the energy in sunlight to make food.
c.
The cell uses glucose to make oxygen.
d.
The cell uses the energy in sunlight to make carbon dioxide.
 

18. 

What product of photosynthesis do most living things need to survive?
a.
water
b.
oxygen
c.
chlorophyll
d.
carbon dioxide
 

19. 

How does photosynthesis benefit heterotrophs?
a.
It adds carbon dioxide to the air.
b.
It creates food that they can eat.
c.
It eliminates harmful sugars.
d.
It creates clean waters.
 

20. 

What happens during respiration?
a.
Oxygen is released into the air.
b.
Glucose is broken down, releasing energy.
c.
Carbohydrates are released into the bloodstream.
d.
Water and carbon dioxide are converted into energy.
 

21. 

The stage of respiration that releases most of the energy in glucose occurs in the
a.
nucleus.
b.
chloroplast.
c.
cytoplasm.
d.
mitochondria.
 

22. 

How are photosynthesis and respiration related?
a.
They have opposite equations.
b.
They have the same equation.
c.
They both produce carbon dioxide.
d.
They both produce oxygen.
 

23. 

Respiration and photosynthesis keep the levels of carbon dioxide and oxygen in the atmosphere
a.
fairly constant.
b.
constantly changing.
c.
constantly increasing.
d.
constantly decreasing.
 

24. 

Which term refers to the production of energy by a cell without using oxygen?
a.
photosynthesis
b.
respiration
c.
fertilization
d.
fermentation
 

25. 

What causes lactic-acid fermentation?
a.
too little oxygen in muscle cells
b.
too much oxygen in muscle cells
c.
too little sugar in muscle cells
d.
too much sugar in muscle cells
 

26. 

What captures energy from sunlight during photosynthesis?
a.
solar cells
b.
stomata
c.
chlorophyll and other pigments
d.
carbohydrates
 

27. 

Carbon dioxide enters plants through the
a.
pigments.
b.
chloroplasts.
c.
chlorophyll.
d.
stomata.
 

28. 

Respiration in most cells requires
a.
water.
b.
oxygen.
c.
chlorophyll.
d.
carbon dioxide.
 

29. 

Which of these causes a form of alcoholic fermentation?
a.
carbon dioxide
b.
lactic acid
c.
bread
d.
yeast
 

Completion
Complete each sentence or statement.
 

30. 

Small openings called ____________________ allow carbon dioxide to enter a leaf.
 

 

31. 

Plants make their own food using energy that comes from the ____________________.
 

 

32. 

Almost all living things depend on the process of ____________________ to supply them with the energy they need.
 

 

33. 

During respiration, glucose is combined with ____________________, releasing energy.
 

 

34. 

During respiration, molecules of ____________________ are first broken down in the cytoplasm.
 

 

35. 

The energy from glucose is released in the process of ____________________.
 

 

36. 

The main difference between respiration and fermentation is that respiration uses ____________________ to obtain energy from food.
 

 

37. 

The process in which yeasts break down sugars and produce carbon dioxide and alcohol is called ____________________ fermentation.
 

 

38. 

The products of respiration are energy, carbon dioxide, and ____________________.
 

 

39. 

Chloroplasts contain a pigment called ____________________ that captures the energy in light.
 

 

Short Answer
 
 
Use the diagram to answer each question.

stgd_files/i0450000.jpg
 

40. 

Identify A and B, which are the raw materials for respiration.
 

41. 

Explain where raw materials A and B come from.
 

42. 

Identify C and D, which are the products of respiration.
 

43. 

Is oxygen required for the stage of respiration that takes place in the cytoplasm? Is oxygen required for the stage of respiration that takes place in mitochondria?
 

44. 

Compare the amount of energy released by the stage of respiration that takes place in the cytoplasm with the amount released in the stage of respiration that takes place in the mitochondria.
 

45. 

Explain what is happening in drawing 1.
 

Essay
 

46. 

Briefly explain what happens in each of the two stages of photosynthesis.
 

47. 

Briefly explain what happens in each of the two stages of respiration. State the end products and where the stages occur in the cell.
 

48. 

Animals do not make their own food from energy in sunlight. Explain why they still depend on the sun for energy.
 



 
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