LS2 Activity Review

LS1.9 Based on the inner membrane of the mitochondria, which model correctly represents the effect of cyanide on cellular respiration in herbivores that eat clover plants?

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Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

LS1.9 Which statement BEST describes how sugars are metabolized in herbivores that eat clover containing high levels of cyanide?

• Fermentation and the KRebs cycle metabolized sugars and produce sufficient ATP to sustain life.

• Aerobic respiration and photosynthesis partially metabolize sugars and store metabolic intermediates until the levels of cyanide are reduced.

• Glycolysis metabolizes sugars more efficiently than it does in the absence of cyanide and produces the normal amount of ATP per sugar molecule.

• Glycolysis and fermentation metabolize sugars but do not produce sufficient ATP to sustain life.

LS1.9 Which statement describes the likely metabolic impact of cyanide production on clover plants?

• Cyanide is non toxic to clover plants because they produce ATP without the electron transport in the mitochondria.

• Cyanide is toxic to clover plants because they use cytochrome c oxidase for electron transport in the mitochondria.

• Cyanide is toxic to clover plants because they use cytochrome c oxidase for ATP synthesis in the chloroplasts.

• Cyanide is nontoxic to clover plants because they carry out electron transport in chloroplasts rather than in mitochondria

LS2.1 The graph shows the average catch rates per hour of tiger sharks for various years between 1997 and 2007 in the Shark Bay ecosystem.

Which claim about the shark population is BEST supported using the data?

• More people fish for sharks in the winter than in the summer.

• Sharks have larger body sizes during the summer than during the winter.

• sharks migrate northward from Shark Bay during the summer to maintain a low body temperature.

• The population of sharks in Shark Bay is larger in the summer than in the winter.

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2

LS2.1 The graph shows the change in the size of a bird population over time.

Which two factors can best explain the shape of the area labeled by the question mark on the population-growth curve?

• The population immigrated to different geographical location.

• A treatment for a communicable disease was given to the birds.

• There was competition among the birds for available resources.

• Some birds were unable to find shelter from predators.

• A new food source was introduced to the birds.

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2

NGSS.HS-LS2-6

LS2.2 The diagram illustrates the carbon cycle.

Which change would led to higher carbon dioxide levels in the atmosphere?

• an increase in photosynthesis

• a decrease in animal respiration

• an increase in the burning of fossil fuels

• a decrease in the destruction of forests

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-5