Question 1

Question

A) Which process in photosynthesis uses energy from the sun? (1 point)
combining carbon dioxide and hydrogen
splitting water into hydrogen and oxygen
absorbing carbon dioxide
releasing oxygen
Question 2
A) ATP is a (1 point)
form of energy that can be used and stored.
usable form of energy.
form of energy that can be stored and released as heat.
storable form of energy.
Question 3
A) ATP stores some of the energy from glucose molecules during glycolysis. How is the
remaining energy from these glucose molecules released? (1 point)
Water
Electron Transport Chain
Heat
Carbon Dioxide
Question 4
A) Which role does photosynthesis play in the flow of energy? (1 point)
Photosynthesis allows plants to create energy for themselves to store and use for
metabolism.
Photosynthesis converts radiant energy to chemical energy to be used by organisms in
the food chain.
Photosynthesis is how plants break down glucose to use for energy.
Photosynthesis provides radiant energy to all the organisms in the entire food chain.
Question 5
A) The nitrogen cycle requires _____ to convert nitrogen to nitrites and nitrates. (1 point)
bacteria
animals
legumes
plants
Question 6
A) How do energy and matter move in ecosystems? (1 point)
Matter flows in one direction, and energy cycles through the environment.
Energy and matter cycle through the environment.
Energy and matter flow in one direction.
Energy flows in one direction, and matter cycles through the environment.
Question 7
A) Which statement is true? (1 point)
Food webs are the best depictions of feeding relationships because they show a single
path for the flow of energy through an ecosystem.
Food chains are the best depictions of feeding relationships because they show a
simplified path for the flow of energy through an ecosystem.
Food webs are the best depictions of feeding relationships because they show many
ways that plants and animals are connected.
Food chains are the best depictions of feeding relationships because they show many
ways that plants and animals are connected.
Question 8
A) Chemical energy for respiration is stored in the bonds of (1 point)
glucose molecules.
carbon dioxide molecules.
water molecules.
oxygen molecules
Question 9
A) Which statement best describes energy release in cellular respiration? (1 point)
Stored chemical energy is broken down and released in the mitochondria.
Stored chemical energy is broken down and released in the cytoplasm.
Stored chemical energy can be used immediately and is released in the cytoplasm.
Stored chemical energy can be used immediately and is released in the mitochondria.
Question 10
A) Turkey vultures eat carrion, which is decaying animal matter, like roadkill. How are
they classified? (1 point)
autotroph
carnivore
herbivore
omnivore
Question 11
A) Why is the energy pyramid not a smooth geometric shape like a triangle but, rather,
looks like narrow blocks stacked on top of wider blocks? (1 point)
A triangular pyramid would reflect a food pyramid rather than energy flow.
Energy decreases at each level, and only 10% remains from the previous level.
Lower levels have far more individuals, so the shape reflects their population size.
The sizes of each shape show how much is consumed
(
or produced
)
at each level.
Question 12
A) What is the difference between a consumer and a producer? (1 point)
Consumers are organisms that eat both plants and animals. Producers are organisms that
eat only plants.
Producers are organisms that eat other organisms. Consumers are organisms that make
their own food using the energy from the sun.
Producers are organisms that eat both plants and animals. Consumers are organisms that
eat only plants.
Consumers are organisms that eat other organisms. Producers are organisms that makes
their own food using the energy from the sun.
Question 13
A) Which trophic level is always a necessity in an energy pyramid or food chain?
(1 point)
secondary consumer
primary consumer
producer
tertiary consumer
Question 14
A) In a food chain, with each feeding relationship, the energy transferred from one
organism to another will (1 point)
decrease.
remain constant.
increase.
be independent of the level.
Question 15
A) The black bear is common to North America. Black bears eat many foods, mainly
grass, roots, berries, and insects. However, fish and mammals—including those already
dead—are also part of their diet. Some tend to wander near campsites and can develop
a taste for human food and garbage. Given this information, which term most accurately
characterizes black bears? (1 point)
carnivores
decomposers
omnivores
producers
Question 16
A) If producers generate 100% of the energy, what percentage of that energy is left by
the time it reaches tertiary consumers? (1 point)
0.1%
10%
100%
1%
Question 17
A) Animals obtain their nitrogen from (1 point)
plants.
nitrites.
bacteria.
nitrates.
Question 18
A) Which of the following can be classified as a decomposer? (1 point)
corn
owl
frog
fungus
Question 19
A) Select the most accurate example of a food chain. (1 point)
snake → rabbit → grass → hawk
rabbit → hawk → grass → snake
hawk → snake → rabbit → grass
grass → rabbit → snake → hawk
Question 20
A) Which of the following can be classified as a producer? (1 point)
corn
snake
deer
bear

Answer 1

Here are the answers to your questions:

Question 1:
Answer: splitting water into hydrogen and oxygen

Question 2:
Answer: usable form of energy.

Question 3:
Answer: Electron Transport Chain

Question 4:
Answer: Photosynthesis converts radiant energy to chemical energy to be used by organisms in the food chain.

Question 5:
Answer: bacteria

Question 6:
Answer: Energy flows in one direction, and matter cycles through the environment.

Question 7:
Answer: Food webs are the best depictions of feeding relationships because they show many ways that plants and animals are connected.

Question 8:
Answer: glucose molecules.

Question 9:
Answer: Stored chemical energy is broken down and released in the mitochondria.

Question 10:
Answer: carnivore

Question 11:
Answer: Energy decreases at each level, and only 10% remains from the previous level.

Question 12:
Answer: Consumers are organisms that eat other organisms. Producers are organisms that make their own food using the energy from the sun.

Question 13:
Answer: producer

Question 14:
Answer: decrease.

Question 15:
Answer: omnivores

Question 16:
Answer: 0.1%

Question 17:
Answer: plants.

Question 18:
Answer: fungus

Question 19:
Answer: grass → rabbit → snake → hawk

Question 20:
Answer: corn

Feel free to ask if you have any more questions or need further clarification!