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WorksheetsUnit 6 Review
Total questions: 20
Worksheet time: 19mins
What happens to the solar energy absorbed by plants during photosynthesis?
It is recycled by plants and returned to the atmosphere.
It is converted into oxygen and glucose.
It is stored as heat within the plant for cellular functions.
It is transformed into chemical energy.
What kind of energy is necessary to initiate the process of photosynthesis?
radiant
heat
electrical
wind
During the process of photosynthesis, —
light energy is converted to chemical energy
chemical energy is transformed to mechanical energy
thermal energy is changed to chemical energy
solar energy is transformed to mechanical energy
Which type of energy is formed during the process of photosynthesis?
chemical
radiant
thermal
kinetic
Which type of energy conversion occurs during the process of photosynthesis?
Chemical energy is converted into radiant energy.
Radiant energy is converted into thermal energy.
Thermal energy is converted into chemical energy.
Radiant energy is converted into chemical energy.
During photosynthesis, energy is stored in the form of —
oxygen
Carbon dioxide
Glucose
Water
When energy is passing through a food web, some of the energy is lost as heat. Approximately how much of the energy is passed from one level to the next?
1%
10%
50%
90%
The diagram below shows a desert food web.
How will a large decrease in the number of rats impact the food web shown above?
There will be an increase in the number of ants, tarantulas, and snakes.
There will be an increase in the number of snakes, coyotes, and hawks.
There will be a decrease in the number of snakes, coyotes, and hawks.
There will be a decrease in the number of cacti and sagebrush plants.
The diagram shows a desert food web.
Which organisms above represent the producers?
Cacti and sagebrush
Hawks and coyotes
Ants and tarantulas
Rats and snakes
Analyze the energy pyramid above. Which description of an arrow best represents the flow of energy through living systems?
An arrow which goes in a complete circle
An arrow that is moving towards the right
An arrow that is moving upward
An arrow that is point downward
Analyze the positions of the eagle and the snake in the food web pictured above. Which of the following statements is correct?
The eagle eats more types of organisms in the food web than the snake does.
The eagle eats the same types of organisms as the snake does.
The snake eats more types of organisms in the food web than theeagle does.
The snake is eaten by the same types of organisms as the eagle is.
Analyze the food web above. Which animal receives the most energy originally produced by the plants in the food web?
rabbit
frog
owl
snake
What do the arrows represent in the diagram of a food chain?
The order of size of organisms in the ecosystem
The importance of organisms in the chain
The direction of energy flow through organisms
The energy increases as you move from left to right
Which of the following statements best describes the flow of energy in the energy pyramid above?
As you go higher in the pyramid, the amount of energy increases.
There is less energy in a producer level than a consumer level.
There is no energy above the level of producers in the system.
Each group receives only a small amount of the energy from the level below it.
Animals are consumers, meaning they need to eat food for energy because they cannot make their own. Which energy transformation is taking place when an animal eats food so it can keep warm?
Mechanical to thermal
Mechanical to radiant
Chemical to thermal
Radiant to chemical
When a person eats too much food, they store the extra energy as fat. Which type of energy transformation is occurring in the body as energy from food is turned into fat?
Mechanical to thermal
Chemical to chemical
Thermal to chemical
Thermal to radiant
Which of the following energy transformations occur when humans use energy from food to exercise?
Mechanical → thermal → chemical
Thermal → electrical → mechanical
Radiant → mechanical → thermal
Chemical → thermal → mechanical
What energy transformation takes place when a rabbit digests a carrot?
Radiant energy is transformed into chemical energy.
Chemical energy is transformed into heat and thermal energy.
Radiant energy is transformed into mechanical and heat energy.
Thermal energy is transformed into mechanical energy.
A student prepares for a five-mile run so she eats a nutritious meal three hours before the run. Which correctly illustrates the transformation of energy from eating the meal to the five-mile run?
Chemical → Thermal
Thermal → Mechanical
Mechanical → Thermal → Chemical
Chemical → Mechanical → Thermal
A group of students are investigating the transformation of energy during digestion. The initial temperature of hydrogen peroxide in a beaker is measured and recorded. Small pieces of liver are placed into a beaker of hydrogen peroxide and the temperature is measured and recorded every 30 seconds over a two minute time period.
What energy transformation is under investigation in the scenario above?
Thermal energy transformed into chemical energy
Chemical energy transformed into thermal energy
Chemical energy transformed into mechanical energy
Mechanical energy transformed into thermal energy
