Homeostasis District Assessment Review

Homeostasis District Assessment Review

​Cell Energy Cycle

Multiple Choice

Which of the following is a biotic factor that will influence the rate of cellular respiration?

• pH levels

• Water temperature

• Sunlight

• Amount of plants

Multiple Choice

Which of the following is an abiotic factor that will influence the rate of photosynthesis?

• Water clarity

• Types of plants

• Otters

• Amount of bacteria in the water

Multiple Choice

^{Deforestation in an ecosystem will cause a(n) ______________ in the rate of photosynthesis. This change in the rate of photosynthesis would result in a(n) _______________ in the rate of cellular respiration.}

• decrease;

  decrease

• decrease;

  increase

• increase;

  increase

• increase;

  decrease

Multiple Choice

^{The amount of chlorophyll, the green pigment found in plants, can be measured in an animal's feces. This amount of chlorophyll in the feces is dependent on the amount of photosynthesis occurring in the ecosystem. As the air temperature decreases, the rate of photosynthesis will ______________ which will cause a _________________ in the amount of chlorophyll.}

• decrease;

  decrease

• increase;

  increase

• decrease;

  increase

• increase;

  decrease

Multiple Choice

Using the information from the graph, what is the independent variable?

• Temperature

• Growth Rate

• Growing Degree

• Base Temperature

Multiple Choice

Using the information from the graph, what is the dependent variable?

• Temperature

• Growth Rate

• Growing Degree

• Base Temperature

Multiple Choice

Using the information from the graph, what is the relationship between the independent and dependent variable?

• As temperature increases, plant growth decreases

• As temperature increases, plant growth is not affected

• As temperature decreases, plant growth increases

• As temperature increases, plant growth increases

Multiple Choice

Chlorophyll is a pigment that makes plants green. If the temperature decreases, what would happen to the amount of chlorophyll produced?

• Chlorophyll increases

• Chlorophyll decreases

• Chlorophyll stays the same

​Gas Exchange

Multiple Choice

Which process allows gases to be exchanged between the capillaries and alveoli?

• Diffusion

• Photosynthesis

• Cellular Respiration

• Evaporation

Multiple Choice

Diffusion is a process where molecules move from an area of ___________ concentration to an area of ____________ concentration.

• low;

  high

• low;

  low

• high;

  low

• high;

  high

Multiple Choice

^{When you run a relay race and get the baton, your muscles contract more requiring increased energy production. A feedback loop occurs to maintain homeostasis. Which of the following is a part of this feedback loop?}

• An increase in breathing and heart rate, allowing for more oxygen to the cells

• A decrease in breathing, allowing more carbon dioxide in the cells

• A decrease in heart rate, allowing more carbon dioxide to go to the brain

• More focused vision to get to the finish line

Multiple Choice

^{In mammals, oxygen taken into the alveoli of the lungs is diffused into the blood. The blood moves the oxygen to the body's cells where it is used for cellular respiration. Carbon dioxide is produced and will diffuse back into the blood, eventually going back to the lungs to be released into the atmosphere. What is the purpose of this gas exchange?}

• To maintain homeostasis

• For photosynthesis to occur

• To maintain evaporation

• To decrease respiration

​Trophic Cascade/Keystone Species

Multiple Select

How would a wildfire in the Kaibab forest affect the producers and consumers in this ecosystem? Choose all that apply.

• Decrease in producers

• More energy transfer through ecosystem

• Decrease in consumers

• Less energy transfer through the ecosystem

• Increase in consumers

Multiple Select

^{The pictures show the progression of Willow tree and canopy growth over beaver inhabited streams following the reintroduction of wolves in the ecosystem.}

^{What impact did the wolves have on the ecosystem after they were reintroduced?}

^{Select all that apply.}

• An increase in biodiversity

• Increased habitat destruction

• Helped control overpopulation of primary consumers

• Decreased producer population

• Increased primary consumer population