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WorksheetsCycling of Matter
Total questions: 25
Worksheet time: 13mins
Green plants and algae make their own food through photosynthesis. What is photosynthesis?
a cell process that uses energy from sunlight to convert water and oxygen into food
a cell process that uses energy from sunlight to convert water and glucose into food
a cell process that uses energy from sunlight to convert water and chlorophyll into food
a cell process that uses energy from sunlight to convert water and carbon dioxide into food
Plant cells contain a green pigment called chlorophyll. Chlorophyll has a role in the process of photosynthesis. What does chlorophyll do?
produces glucose from oxygen
produces oxygen from glucose
absorbs light energy from the sun
absorbs glucose from the plant
Plants absorb and store some of the energy in sunlight through a process called …
Cellular respiration
Photosynthesis
Carbon Cycle
Decomposer
What is the function of the mitochondria?
To protect the nucleus
To supply energy for the cell via cellular respiration
To digest food
To carry out photosynthesis
What is the function of the chloroplast?
To protect the nucleus
To supply energy for the cell via cellular respiration
To digest food
To carry out photosynthesis
The ______________ is the cellular organelle that converts glucose into ATP, a chemical form of energy the cell can use.
Chloroplast
Chlorophyll
Mitochondria
Nucleus
Both plants and animal cells can carry out the following cell process…
Photosynthesis because they both contain chloroplast
Cellular respiration because they both contain chloroplast
Photosynthesis because they both contain mitochondria
Cellular respiration because they both contain mitochondria
Which of the following is the chemical equation for cellular respiration?
Which of the following is the chemical equation for photosynthesis?
What is/are converted into glucose and oxygen in the process of photosynthesis?
water only
light energy only
carbon dioxide and light energy only
carbon dioxide, water, and light energy
The process of photosynthesis converts _____ energy into _____ energy.
light, chemical
chemical, light
mechanical, thermal
thermal, mechanical
Which is the MOST accurate description about how green plants and animals get food?
Both green plants and animals get food by making it.
Both green plants and animals get food by ingesting it.
Green plants get food by making it, while animals ingest it.
Green plants get food by ingesting it, while animals make it.
Which component is missing from the chemical equation for photosynthesis?carbon dioxide + water + light energy --> ? + oxygen
hydrogen
chlorophyll
glucose
light energy
In which cell structure does MOST of the process of cellular respiration take place?
nucleus
vacuole
cell wall
mitochondria
What is the primary source of chemical energy for a cell?
ATP
ADP
DNA
RNA
What is the chemical equation for aerobic respiration?
carbon dioxide + water --> glucose + oxygen + energy
glucose + oxygen --> carbon dioxide + water + energy
carbon dioxide + water + energy --> glucose + oxygen
glucose + oxygen + energy --> carbon dioxide + water
Can organisms absorb nitrogen gas directly out of the atmosphere?
Yes
No
_______________________ converts nitrogen into a form that plants can absorb.
Denitrifying bacteria
Nitrogen fixing bacteria
Decomposers
How do animals obtain nitrogen stored in plants?
Denitrifying bacteria
Nitrogen fixing bacteria
Directly from the atmosphere
They eat the plants
Which of the following cycles lacks a gas phase? This means that the element does not exist in a gas phase.
carbon
nitrogen
phosphorous
none of the above
Which of the following processes play a major role in the carbon dioxide-oxygen cycle? Mark all that apply.
photosynthesis
cellular respiration
decomposition
nitrogen fixation
Which of the following is the law of conservation of mass and energy?
Mass and energy are never created or destroyed, just changes forms
All of the activities carried out by a cell
Process in which oxygen is chemically combined with food molecules in the cell to release energy
none of these
Why can plant and animal cells both do cellular respiration?
they both have chloroplast
they both have mitochondria
they both have cell membrane
they both have nucleus
Which of the following organelles is where photosynthesis takes place?
Chloroplast, F
Vacuole, A
Nucleus, D
Mitochondria, E
Which of the following organelles is where cellular respiration takes place?
Chloroplast, F
Vacuole, A
Nucleus, D
Mitochondria, E
