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Ninth Grade (Grade 9) Biology Questions

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Grade 9 :: Ecology by mrsbateacher
In the nitrogen cycle, nitrogen is fixed by
  1. nitrogen-fixing bacteria
  2. lightning
  3. a only
  4. a and b
  5. none of the above
Grade 9 :: Genetics by TeacherClara
Which nitrogenous bases are paired correctly?
  1. AB-CD
  2. AT-CG
  3. AC-DC
  4. AC-TG
Grade 9 :: Cell Theory by meganber
Which cell organelle is responsible for making proteins?
  1. ribosomes
  2. nucleolus
  3. mitochondria
  4. chloroplast
Grade 9 :: Cell Theory by meganber
Which cell organelle assists with cell division during mitosis and meiosis?
  1. centriole
  2. lysosome
  3. centrosome
  4. cytoplasm
Grade 9 :: Genetics by meganber
What are the four nitrogenous bases found in DNA?
  1. guanine, cytosine, adenine, thymine
  2. guanine, uracil, adenine, cytosine
  3. none of the above
  4. both a and b
Grade 9 :: Genetics by meganber
Which of the following nitrogenous bases is found in RNA and not in DNA?
  1. uracil
  2. thymine
  3. guanine
  4. cytosine
Grade 9 :: Genetics by meganber
Which of the following word describes the synthesis of RNA using a DNA
template?
  1. transcription
  2. translation
  3. photosynthesis
  4. repiration
Grade 9 :: Biochemistry by meganber
What type of sugar is found in the nucleotides of DNA?
  1. deoxyribose
  2. ribose
  3. glucose
  4. none of the above
Grade 9 :: Biochemistry by LBeth
C_6H_12O_6 + 6O_2->6CO_2+6H_2O+energy is the balanced chemical equation for
  1. photosynthesis
  2. glycolysis
  3. cellular respiration
  4. Krebs cycle
Grade 9 :: Genetics by meganber
What nitrogenous base is found in RNA and not in DNA?
  1. uracil
  2. guanine
  3. cytosine
  4. adenine
Grade 9 :: Genetics by meganber
Which of the following is NOT a characteristic of DNA?
  1. deoxribose rugar
  2. single stranded
  3. double stranded
  4. four nitrogenous bases
Grade 9 :: Zoology by der1228
Which of the following bird structures are especially adapted to support flight?
  1. cloacae
  2. gizzards
  3. bills
  4. chest muscles
Grade 9 :: Biochemistry by kentmorales
What are the monomers of lipids?
  1. Amino acids
  2. Simple sugars
  3. Fatty acids and glycerol
  4. Nucleic acids
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