Unit Test - Energy Flow, Photosynthesis, & Cell. Respiration

What would the insectivorous birds be classified as in the food web?

• Carnivores

• Decomposers

• Herbivores

• Omnivores

Tags

NGSS.MS-LS2-4

In the food web pictured, what would be a direct impact of an increase in the amount of toads in the ecosystem?

• An increase in the population of squirrels

• A decrease in the population of owls

• An increase in the population of snakes

• A decrease in the rabbit population

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-5

What will most likely happen if a new producer is introduced into a food web?

• The omnivores will decrease

• The herbivores will increase

• The carnivores will decrease

• The decomposers will decrease

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-4

NGSS.HS-LS2-5

What happens to the amount of energy in a trophic pyramid as you move up through the different levels?

• Energy increases by 10% each level

• Energy decreases by 90% each level

• Energy decreases by 10% each level

• Energy increases by 90% each level

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A student notices that a freshwater plant produces bubbles when placed in direct light. What could the student MOST likely conclude?

• Bubbles of carbon dioxide were produced as a result of photosynthesis

• Bubbles of oxygen were produced as a result of photosynthesis

• Bubbles of carbon dioxide were produced as a result of cellular respiration

• Bubbles of oxygen were produced as a result of cellular respiration

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Which of the following are products of the light-dependent reactions of photosynthesis that are USED in the light-independent reactions?

• CO2 and glucose

• H2O and O2

• O2 and glucose

• ATP and NADPH

The figure shows the current composition of the Earth's atmosphere. What would be different about the composition before the evolution of photosynthetic organisms?

• The trace elements section would have been smaller

• The nitrogen component would be larger

• The oxygen component would have been smaller

• The oxygen component would have been larger

Explain the purpose of the light-dependent stage of photosynthesis. Include: where it happens in the chloroplast, what reactant is used, what product is made, and what moves on to the next step. (5 points)

Tags

NGSS.HS-LS1-5

Bonus: Explain the 4 key steps in the Calvin Cycle (Hint: Grad, Split, Leave, Switch). Include the final result of the Calvin Cycle and where this occurs in the chloroplast. ( Up to 5 points)

Tags

NGSS.HS-LS2-5

Ideally, how many molecules of ATP are gained through the process of aerobic cellular respiration from one glucose?

• 2

• 4

• 36

• 46

Tags

NGSS.HS-LS1-7