Worksheets02.CI.Science.G08.CRM3.3_2020
Total questions: 35
Worksheet time: 29mins
Which option below best explains how animal cells are able to use cellular respiration to carry out cellular functions?
Food provides energy and water provide oxygen, which is used to break down carbon dioxide for other cellular functions.
Water molecules found in cell vacuoles are broken down release energy and oxygen which is used for other cellular functions.
Cellular respiration breaks down stored carbon dioxide found in the body to release oxygen which is then used for cellular functions.
Breathing provides oxygen and food provides glucose, this combination allows cells to breakdown glucose releasing energy for the cell to carry out other functions.
After playing a soccer match, the girls team “cools down” by slowing down, breathing deeply and eating orange slices. Why does this speed up their recovery process?
By cooling down in this way they are able to take in carbon dioxide and water which allows their cells to produce energy through cellular respiration.
By eating a snack they take in energy which converts to sugar needed by the body to produce oxygen the athletes muscles to begin cellular respiration.
By breathing deeply they release more carbon dioxide which leads to more energy for cellular respiration to begin.
By cooling down in this way they are able to take in oxygen and sugar which allows their cells to produce energy through cellular respiration.
Which statement below best explains why cellular respiration is important to living organisms?
It is the process by which living organisms use energy from the sun and water to create food in the form of sugar.
It is the process by which living organisms take in oxygen and water to create food in the form of sugars and energy.
It is the process by which living organisms break down sugar from food to combine with oxygen making usable energy.
It is the process by which living organisms take in oxygen and release carbon dioxide through the cells thereby providing energy.
How does the process of photosynthesis provide evidence for the Law of Conservation of Mass?
The total mass of glucose created at the end of photosynthesis equals the amount of carbon dioxide used.
In photosynthesis the total amount of glucose and oxygen produced will equal the total amount of water and carbon dioxide initially used.
In photosynthesis the total mass is equal to the amount of carbon dioxide and water used to produce energy and oxygen.
The total mass will not change in photosynthesis since equal amounts of oxygen and water are produced when equal amounts of energy and carbon dioxide used.
Imagine you have a sealed jar containing three bean seeds, air, and a moist paper towel. Nothing can get in or out of the jar. The total mass of the jar and its contents is 100 grams. Imagine the same jar with its contents 12 days later. During that time the jar remained sealed. Nothing could get in or out of the jar. The seeds have germinated to form 6 centimeter seedlings. The total mass of the jar and its contents after the 12 days is recorded. What is outcome?
There will be no change in the total mass of the jar with the seedlings after 12 days
The total mass of the original jar with seeds will be less than total mass of the jar with the seedlings.
The total mass of the original jar with seeds will be more than the total mass of the jar with the seedlings.
Which of the following options best explains how a lack of chlorophyll would affect the process of photosynthesis in plants?
A lack of chlorophyll will trigger plants to increase the rate of photosynthesis in order to increase production of food.
A lack of chlorophyll will limit the amount water plants are able to take in, resulting in a slower rate of photosynthesis.
A lack of chlorophyll would increase the production of oxygen because the plant would need to work hard to feed themselves.
A lack of chlorophyll would limit the amount of light absorbed by the plant and hinder the amount of food the plant is able to produce for itself.
Which pair of graphs show how the rate of photosynthesis is impacted by the amount of light and production of oxygen?
(more light = higher rate of photosynthesis = higher production of oxygen)
A
B
Carbon molecules cannot be created or destroyed
True
False
Not enough information to answer
According to the Law of Conservation of Mass, which of the following statements best describes the total amount of carbon in Earth?
The total amount of carbon on Earth decreases, as it moves through the carbon cycle.
The total amount of carbon on Earth changes depending where its located in the carbon cycle.
The total amount of carbon on Earth gradually increases, as it moves through the carbon cycle.
The total amount of carbon on Earth is consistent but limited as it moves through the carbon cycle.
Which gas do animals release, that plants depend on for survival?
Carbon dioxide
Oxygen
Sunlight
Water
1?
diagram?
How can the law of conservation of energy be expressed in the case of a chemical reaction?
total energy before the reaction is always less than the total energy after the reaction
total energy before the reaction is always greater than the total energy after the reaction
total energy before the reaction is always equal to the total energy after the reaction
energy cannot be measured in a chemical reaction
What is the primary role that plants play for the Law of Conservation of Matter?
They absorb carbon dioxide, create sugar, and release oxygen.
They create food and absorb nutrients.
They absorb oxygen and sugar, and release carbon dioxide and water.
They create oxygen and glucose and release water.
Which of the following best explains how plants follow the Law of Conservation of Mass during photosynthesis?
The reaction uses energy to produce a product without energy.
A gas (carbon dioxide) and a liquid (water) use energy to produce a solid (carbohydrates).
The amount of each element that begins photosynthesis equals the amount of each element that is produced.
The amount of carbohydrates at the beginning of photosynthesis equals the amount of oxygen that is produced.
At which number does photosynthesis take place?
1
2
3
4
At which number does the animal respiration take place?
1
2
3
4
True or False:
Cellular Respiration is the process by which living organisms break down sugar from food to combine with oxygen making usable energy.
true
false
For hundreds of years, people thought the Earth was flat. Eventually, the idea of a round Earth was accepted. What does that tell us about science?
Primary goal of scientists is to disprove previous scientists’ work
Scientists must work together in order to understand the problems that face society today
Changes in scientific understanding require existing theories to be modified.
Early theories about science are no longer useful.
The factor in an experiment that will be changed.
dependent variable
independent variable
controlled variable
inferences
The summary at the end of an experiment that explains the results, and refers to the hypothesis using data.
conclusion
procedures
materials
responding variable
This variable is the actual data collected during the experiment
(measured)
independent variable
dependent variable
control group
data group
