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Energy in a system
photosytnesis
cellular respiration
Food Chain Food Web
Nutrient flow in a system
100
A lion hunts and kills other organisms to obtain energy. It would be considered what type of organism? a) unicellular b) photosynthetic c) heterotroph
What is c) heterotroph
100
Why does a food chain begin with plants? a) The plants produce food from light energy, carbon dioxide and water. b) None of the species of the ecosystem depend on them for food. c) The plants do depend on other living creatures for food.
What is a) The plants produce food from light energy, carbon dioxide and water.
100
Mitochondria are the primary site of _______________ . a) glycolysis b) protein synthesis c) cellular respiration
What is c) cellular respiration
100
Which type of consumer is a eagle? a) carnivore b) herbivore c) scavenger
What is a) carnivore
100
Which one of the following is a predator? a. autotroph b. heterotroph c. decomposers
What is b. heterotroph
200
Which is similar between autotrophs and heterotrophs? a) Both need to obtain energy. b) Both need to produce glucose. c) Both occupy the same position in a food chain.
What is a) Both need to obtain energy.
200
The process that best separates plants from animals is called ____________ . a) respiration b) reproduction c) photosynthesis
What is c) photosynthesis
200
What is released during cellular respiration? a) energy b) salt c) light
What is a) energy
200
The most energy is available at the ______________level of the energy pyramid. As you move up the pyramid, each level has less energy available than the level below. a) consumer b) producer c) food chain
What is b) producer
200
How does energy flow through an ecosystem? a) consumers to producers to the sun to the atmosphere b) producers to the atmosphere to consumers to the sun c) the sun to producers to consumers to the atmosphere
What is c) the sun to producers to consumers to the atmosphere
300
In the energy pyramid, which group forms the bottom and also has the largest number of organisms? a) Carnivores b) Herbivores c) Producers
What is c) Producers
300
Which cycle most likely includes sunlight, photosynthesis, and respiration? a) water cycle b) oxygen cycle c) nitrogen cycle
What is b) oxygen cycle
300
Which of the following correctly summarizes cellular respiration? a) 6 O2 + C6H12O6 = 6 CO2 + 6 H2O + energy b) 6 CO2 + C6H12O6 + energy = 6 CO2 + 6 H2O c) 6 CO2 + 6 H2O = 6 O2 + C6H6O6 + energy
What is a) 6 O2 + C6H12O6 = 6 CO2 + 6 H2O + energy
300
No matter how many steps it contains, how many organisms there are, or where it is located, every food chain will always end with which organisms? a) predators b) detritivores c) decomposers
c) decomposers
300
How does carbon move through the biosphere? a) by cycling within and between ecosystems b) by one-way movement through ecosystems c) In air and water but not in organisms
What is a) by cycling within and between ecosystems
400
Generally, what percent of energy is passed from one trophic level to the next? a) 100 b) 75 c) 10
What is c) 10
400
Photosynthesis means... a) the green material in plants that traps energy from sunlight and uses it to break down water molecules into atoms of hydrogen and oxygen. b) in a plant the growth tissue that produces the xylem and the phloem. c) the process by which green plants use chemicals from the environment and energy from the sun to make their own food
What is c) the process by which green plants use chemicals from the environment and energy from the sun to make their own food
400
Which of these is broken down during cellular respiration to release energy? a) glucose b) ADP c) water
What is a) glucose
400
Which of the organisms below would most likely be at the top of an energy pyramid? a) clam b) shark c) sardine
What is b) shark
400
What is the recycling of chemical elements throughout an ecosystem called? a. Energy b. Phosphorous Cycle c. Biogeochemical Cycle
What is c. Biogeochemical Cycle
500
Why are decomposers such an essential part to any food web and ecosystem? a. Decomposers recycle nutrients that keep the flow of energy going. b. Decomposers provide the basis of all energy production in the food web. c. Decomposers are responsible for keeping the numbers of herbivores in check.
What is a. Decomposers recycle nutrients that keep the flow of energy going.
500
Photosynthesis_______________ such as ______________are contained in ____________. a) chlorophyll; pigments; chloroplast b) pigments; chloroplast; chlorophyll c) pigments; chlorophyll; chloroplast
What is c) pigments; chlorophyll; chloroplast
500
Identify the principal role of cellular respiration. a. To convert solar energy into the chemical energy of sugars b. To convert kinetic energy into the chemical energy of sugars c. To convert the chemical energy of sugars into the chemical energy that fuels life's processes
What is c. To convert the chemical energy of sugars into the chemical energy that fuels life's processes
500
Why do photosynthesis and aerobic respirations form a balanced cycle in the biosphere? a. both processes produce about equal amounts of oxygen b. both processes break down organic molecules into CO2 and H2O c. their overall reactions are exactly the opposite of one another
What is c. their overall reactions are exactly the opposite of one another
500
Butterflies are an important part of an ecosystem because they are known as pollinators (like bees) and like most insects are more active in warmer climates then colder climates. What would be an appropriate hypothesis related to investigating the image? a) If the temperature becomes too cold, then the butterfly will be unable to reproduce. b) The butterfly eats nectar only when there is no wind. c) The spots on the butterfly's wings are used to help it capture prey
What is a) If the temperature becomes too cold, then the butterfly will be unable to reproduce.