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WorksheetsSC.8.L.18.4 Conservation of Mass and Energy in Living Systems
Total questions: 15
Worksheet time: 8mins
What is energy?
anything that takes up space
anything that has mass
the ability to conduct current
the ability to do work
Photosynthesis is the process that captures the ___________ of sunlight and transforms it into the _______________ of sugar.
chemical energy - solar energy
kinetic energy to potential energy
solar energy - chemical energy
potential energy to kinetic energy
How does blowing up a balloon help prove that air is matter?
It shows that air has kinetic energy.
It shows that air takes up space.
It shows that air contains oxygen.
It shows that air is a solid.
Living systems obey the law of conservation of energy. Which of the following statements does NOT summarize a
key idea of this law?
During an ordinary chemical reaction no energy is created.
Energy can be changed in form during a chemical reaction.
During an ordinary chemical reaction no energy is destroyed.
Energy can be destroyed during an ordinary chemical reaction.
Living systems obey the law of conservation of mass. Which of the following statements supports the main ideas of
the law of conservation of mass?
The substances that take part in a chemical reaction are the same as the substances that are formed by the reaction.
The masses of the substances that take part in a chemical reaction are less than the masses of the substances that
are formed.
The masses of the substances that take part in a chemical reaction are equal to the masses of the substances that
are formed.
The masses of the substances that take part in a chemical reaction are greater than the masses of the substances
formed by the reaction.
Plant cells contain a green pigment called chlorophyll. Chlorophyll has a role in the process of photosynthesis. What
does chlorophyll do?
produces the sugar glucose from oxygen
produces oxygen from the sugar glucose
absorbs light energy from the sun
absorbs the sugar glucose form the plant
Green plants produce their own food during photosynthesis. This image shows the process of photosynthesis. What are the products of photosynthesis?
carbon dioxide and water
the sugar glucose and oxygen
chlorophyll and mitochondria
chlorophyll and chloroplast
Green plants and algae make their own food through photosynthesis. What is photosynthesis?
using energy from sunlight to convert water and oxygen into food
using energy from sunlight to convert water and glucose into food
using energy from sunlight to convert water and chlorophyll into food
using energy from sunlight to convert water and carbon dioxide into food
What is the role of the green pigment chlorophyll in photosynthesis?
absorbs light energy from the sun
absorbs glucose from the storage in the plant
produces glucose from oxygen
produces oxygen from glucose
How do organisms get the energy they need?
Plants get energy from fertilizers, and animals get energy by drinking water.
Plants get energy from glucose produced in the soil, and animals get energy directly from sunlight.
Plants do not require energy because they do not move, and animals get energy by performing exercise.
Plants produce their own energy through photosynthesis, and animals get energy from eating other organisms.
The process of cellular respiration makes it possible for Kristine to run on the treadmill and to lift weights. What do her cells do during cellular respiration?
convert kinetic energy into chemical energy
absorb light energy through the chlorophyll in their chloroplasts
break down food molecules to release energy in the form of ATP
combine water and carbon dioxide to produce oxygen and glucose
Plants provide the materials that animals use in cellular respiration, and animals provide the materials needed by plants for photosynthesis. This image shows the relationship.
According to the diagram, which of these materials does cellular respiration provide that plants use in photosynthesis?
ATP
carbon dioxide
chloroplasts
mitochondria
Which of the following statements best describes how plants get energy.
Plants undergo photosynthesis to produce the sugar glucose, then use cellular respiration to release the ATP energy from glucose.
Plants undergo photosynthesis to produce the sugar glucose, which is the energy currency for the cell.
Plants undergo cellular respiration to produce the sugar glucose, then use photosynthesis to release the ATP energy from glucose.
Plants eat plants and animals to take in the sugar glucose, then use cellular respiration to release the ATP energy from glucose.
The organelle where photosynthesis occurs is _________.
golgi bodies
cholorophyll
chloroplast
mitochondria
Cellular respiration is complete in the ____________.
golgi body
mitochondria
chlorophyll
chloroplast
