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Ninth Grade (Grade 9) Biology Questions

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Grade 9 Cell Structure and Function
Despite differences in size and shape, all cells have a cytoplasm and a
  1. cell wall.
  2. mitochondrion.
  3. nucleus.
  4. cell membrane.
Grade 9 Cell Structure and Function
Which correctly describes where photosynthesis and respiration occur in plant cells?
  1. Both photosynthesis and respiration occur in the cytoplasm of cells.
  2. Photosynthesis occurs in the chloroplast, whereas respiration occurs in the mitochondria.
  3. Photosynthesis occurs in the mitochondria, whereas respiration occurs in the chloroplast.
  4. Photosynthesis occurs in the chloroplast, whereas plant cells do not perform respiration.
Grade 9 Food Chains and Webs
Grade 9 Cell Structure and Function
Grade 9 Biochemical Pathways
Grade 9 Cell Structure and Function
Grade 9 Cell Structure and Function
Which cell type tends to have a nucleus?
  1. prokaryotes
  2. bacteria
  3. eukaryotes
  4. organelles
Grade 9 Food Chains and Webs
Grade 9 Development and Reproduction
Grade 9 DNA, RNA, and Genetics
What is a gene?
  1. Segment of DNA that codes for muscle size.
  2. Segment of DNA that codes for a specific trait or cell function.
  3. Segment of DNA that codes for bleached ends of hair color.
  4. Segment of DNA that codes for absolute muscle strength.
Grade 9 DNA, RNA, and Genetics
What describes the synthesis of RNA with a template of DNA?
  1. transcription
  2. translation
  3. photosynthesis
  4. respiration
Grade 9 DNA, RNA, and Genetics
All are characteristics of DNA EXCEPT
  1. having deoxyribose sugar.
  2. being single-stranded.
  3. being double-stranded.
  4. having four nitrogenous bases.
Grade 9 Human Reproduction
When does conception, or fertilization, occur?
  1. An egg matures in a female's ovary.
  2. All 23 pairs of chromosomes are present.
  3. A dominant gene overrides a recessive gene.
  4. Sperm from a male unites with an egg from a female.
Grade 9 Cell Structure and Function
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