WorksheetsPrimary Productivity
Total questions: 7
Worksheet time: 5mins
Name
Class
Date
1.
__________ primary productivity is the total amount of energy that producers convert to chemical energy in organic molecules per unit of time.
a)
Net
b)
Total
c)
Gross
d)
None of the above
2.
About ___ percent of the planet is covered in ocean
a)
25
b)
50
c)
85
d)
70
3.
Oxygen is essential to _______________.
a)
photosynthesis
b)
glycolysis
c)
cellular respiration
d)
fermentation
4.
To measure primary productivity, you can measure carbon dioxide consumption, total carbohydrates produced or ________________.
a)
dissolved oxygen
b)
total proteins produced
c)
light energy entering system
5.
Would salt water or fresh water be expected to have a greater concentration of dissolved oxygen?
a)
salt water
b)
fresh water
c)
they would be equal
6.
Which environment would have a greater amount of dissolved oxygen, warm water (31degrees C) or cool water (18 degrees C)?
a)
warm
b)
cool
c)
they would be the same
7.
__________productivity = the organic materials that remain after photosynthetic organisms in the ecosystem have used some of these compounds for their cellular energy needs (cellular respiration).
a)
Gross
b)
Primary
c)
Net
d)
Secondary
100 %
