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Biology Questions - All Grades

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Grade 9 :: Biochemical Pathways by PMISIAS
Which statement describes cellular respiration?
  1. The process of breaking down chemical energy stored in bonds into energy that can be used by the cell
  2. The process of creating food for the cell
  3. The process of combining oxygen and water to produce another substance to be transported
  4. The process of making proteins
Grade 6 :: Symbiosis by racmorris
Grade 9 :: Macromolecules by PMISIAS
Enzymes are critical for biological reactions to occur in an organism. How do enzymes help chemical reactions to take place?
  1. They speed up reactions by adding more substrates
  2. They slow reactions down by increasing the activation energy
  3. They speed up reactions by lowering the activation energy
  4. They slow down reactions by changing the overall temperature
Grade 7 :: Cell Structure and Function by jlovering
Diffusion and osmosis are both forms of                  .
  1. Active Transport
  2. Passive Transport
  3. Respiration
  4. Photosynthesis
Grade 4 :: Communities, Populations, and Ecosystems by DBenoit
What is the role of an organism within its environment?
  1. factor
  2. ecosystem
  3. accommodation
  4. niche
Grade 9 :: Biochemical Pathways by LBeth
Grade 10 :: Macromolecules by HSimpson74
What type of macromolecules are the enzymes found in our bodies?
  1. lipids
  2. carbohydrates
  3. proteins
  4. nucleic acids
Grade 10 :: Macromolecules by HSimpson74
Carbohydrates are made of which 3 elements?
  1. nitrogen, oxygen, and hydrogen
  2. carbon, hydrogen, and oxygen
  3. sulfur, hydrogen, and oxygen
  4. nitrogen, phosphorus, and oxygen
Grade 6 :: Biotic and Abiotic by Stodola
What is an ecosystem?
  1. affecting a certain population
  2. all living and non-living things in a particular area
  3. an increase in the Earth's temperature
  4. organisms that make their own food
Grade 9 :: Human Reproduction by bfiles
When does conception or fertilization occur?
  1. a dominant gene overrides a recessive gene.
  2. sperm from a male unites with an egg from a female.
  3. an egg matures in a female's ovary.
  4. all 23 pairs of chromosomes are present.
Grade 8 :: Biochemical Pathways by rebmidwife
What is the process where cells obtain energy from sugar molecules?
  1. biotic
  2. nitrogen cycle
  3. respiration
  4. food chains
Grade 5 :: Biochemical Pathways by jsnell
What does photosynthesis produce?
  1. oxygen and glucose
  2. water and sugar
  3. oxygen and proteins
Grade 10 :: Macromolecules by dddiaper2
Grade 4 :: Communities, Populations, and Ecosystems by somedude
Grade 1 :: Biotic and Abiotic by TeacherJoAnne55
What 3 things do living things need?
  1. soil, water, air
  2. air, land, water
  3. air, food, water
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