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9th grade human body and health

9th grade (Year 10 in England) · 16 questions · Common Core: NGSS.HS-LS1-2, NGSS.HS-LS1-7, NGSS.SEP 7, NGSS.HS-LS1-3 · England: KS4 Combined Science: Health, disease and the development of medicines, GCSE Combined Science: Bioenergetics, GCSE Combined Science: Infection and response

Name

Date

Score/ 16

  1. Question 1

    What type of pathogen causes tuberculosis?

    • A. virus
    • B. bacterium
    • C. fungus
    • D. protist

  2. Question 2

    After exercise, a student counts 17 pulse beats in 20 seconds. What is the heart rate in beats per minute?

    Answerbpm

  3. Question 3

    Which is the balanced symbol equation for aerobic respiration?

    • A. C₆H₁₂O₆ + 6CO₂ → 6O₂ + 6H₂O
    • B. 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
    • C. C₆H₁₂O₆ + O₂ → CO₂ + H₂O
    • D. C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O

  4. Question 4

    Why should a doctor not give antibiotics for a cold?

    • A. Colds are not diseases.
    • B. Colds are caused by viruses, and antibiotics do not kill viruses.
    • C. Antibiotics make colds worse.
    • D. Antibiotics only work on fungi.

  5. Question 5

    In one region, measles vaccination coverage rose from 67 % to 93 %. Yearly measles cases fell from 55 to 5. Which conclusion is best supported?

    • A. Vaccination has no link with the number of cases.
    • B. The data prove that measles has disappeared everywhere.
    • C. Cases fell sharply after vaccination rose, which supports the vaccine reducing measles.
    • D. The vaccine made measles cases rise.

  6. Question 6

    What is herd immunity?

    • A. When so many people are immune that a disease cannot spread easily, protecting the unvaccinated
    • B. When antibiotics are added to water
    • C. When animals in a herd are vaccinated
    • D. When one person is immune to every disease

  7. Question 7

    Why is malaria described as being spread by a vector?

    • A. Mosquitoes carry the protist from person to person
    • B. It is caused by bad food
    • C. It is spread by shaking hands
    • D. It spreads through the air when people sneeze

  8. Question 8

    During exercise an athlete's cardiac output is 4.5 dm³ per minute and their stroke volume is 75 cm³. What is their heart rate, in beats per minute? (1 dm³ = 1000 cm³)

    Answerbpm

  9. Question 9

    Under ideal conditions a bacterium divides every 20 minutes. A drop of milk starts with 2 bacteria. How many bacteria will there be after 4 hours?

    Answer

  10. Question 10

    A muscle cell respires 8 molecules of glucose aerobically. Using C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O, how many molecules of oxygen are needed?

    Answer

  11. Question 11

    A person's stroke volume is 90 cm³ and their heart rate is 70 beats per minute. What is their cardiac output, in cm³ per minute?

    Answercm³/min

  12. Question 12

    Which type of medicine is described: prevents measles before you are exposed?

    • A. vaccine
    • B. antibiotic
    • C. painkiller

  13. Question 13

    What type of pathogen causes the common cold?

    • A. virus
    • B. bacterium
    • C. fungus
    • D. protist

  14. Question 14

    Which type of respiration does this describe: it needs oxygen?

    • A. aerobic only
    • B. anaerobic only
    • C. both

  15. Question 15

    Disease: which statement is NOT true?

    • A. Some bacteria have become resistant to antibiotics.
    • B. You can catch heart disease from someone else.
    • C. Skin is a barrier that stops many pathogens entering.
    • D. Heart disease is a non-communicable disease.

  16. Question 16

    What type of pathogen causes malaria?

    • A. virus
    • B. bacterium
    • C. fungus
    • D. protist

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  1. bacterium
  2. 51 bpm
  3. C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O
  4. Colds are caused by viruses, and antibiotics do not kill viruses.
  5. Cases fell sharply after vaccination rose, which supports the vaccine reducing measles.
  6. When so many people are immune that a disease cannot spread easily, protecting the unvaccinated
  7. Mosquitoes carry the protist from person to person
  8. 60 bpm
  9. 8192
  10. 48
  11. 6300 cm³/min
  12. vaccine
  13. virus
  14. aerobic only
  15. You can catch heart disease from someone else.
  16. protist