Want to see correct answers?
Login or join for free!

Search Results for oxygen - All Grades

1525 questions match "oxygen". Refine Your Search

Select questions to add to a test using the checkbox above each question. Remember to click the add selected questions to a test button before moving to another page.

Previous Page 1 of 77 Next
Grade 9 Circulatory and Immune Systems
Oxygen transport involves bonding oxygen with
  1. hormones.
  2. hemoglobin.
  3. white blood cells.
Grade 8 Matter
Oxygen is a                  .
  1. metal
  2. metalloid
  3. nonmetal
  4. none of the above
Grade 8 Periodic Table and Elements
Which best describes oxygen?
  1. Oxygen is a halogen.
  2. Oxygen is a nonmetal.
  3. Oxygen is a noble gas.
  4. Oxygen is a rare earth element.
College Biochemical Pathways
A product of photosynthesis is molecular oxygen. What is the source of this oxygen?
  1. water and carbon dioxide
  2. carbon dioxide and glucose
  3. water
  4. carbon dioxide
  5. none of the above
College Macromolecules
Organic Molecules contain which two elements?
  1. Carbon and Hydrogen
  2. Oxygen and Hydrogen
  3. Oxygen and Carbon
  4. Nitrogen and Oxygen
Grade 9 Biochemical Pathways
Oxygen is released
  1. during the electron transport chain.
  2. as water is split in photosystem II.
  3. during the Calvin cycle.
  4. by chlorophyll.
Grade 10 Macromolecules
Carbohydrates are made up of the three elements of
  1. nitrogen, oxygen, and hydrogen.
  2. carbon, hydrogen, and oxygen.
  3. sulfur, hydrogen, and oxygen.
  4. nitrogen, phosphorus, and oxygen.
Grade 8 Periodic Table and Elements

This question is a part of a group with common instructions. View group »

Grade 4 Periodic Table and Elements
Grade 6 Periodic Table and Elements
Oxygen is a metal.
  1. True
  2. False
Grade 7 Earth's Layers
Where is most of Earth's oxygen found?
  1. crust
  2. atmosphere
  3. water
  4. plants
Grade 7 Atmosphere
How is the ozone layer helpful?
  1. needed for cellular respiration
  2. protects Earth from radiation
  3. used during combustion
  4. forms organic molecules
Grade 11 Atmosphere
What gases do scientists speculate were lost from Earth's primordial atmosphere, shortly after it formed?
  1. nitrogen and oxygen
  2. hydrogen and helium
  3. oxygen and hydrogen
  4. carbon dioxide and oxygen
Grade 5 Atmosphere
The two main gases in Earth's atmosphere are                            .
  1. carbon dioxide and nitrogen
  2. oxygen and hydrogen
  3. nitrogen and oxygen
  4. helium and oxygen
Grade 9 Macromolecules
Although carbohydrates and lipids have different functions, the same elements are present in both. Which elements are found in both carbohydrates and lipids?
  1. carbon, nitrogen, and oxygen
  2. carbon, hydrogen, and oxygen
  3. carbon, nitrogen, hydrogen, and oxygen
  4. nitrogen, hydrogen, and oxygen
Grade 7 Molecules and Compounds
Grade 5 The Moon
The Moon's thin atmosphere
  1. has no known oxygen.
  2. has oxygen.
Previous Page 1 of 77 Next
You need to have at least 5 reputation to vote a question down. Learn How To Earn Badges.