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7th grade human body and health

7th grade (Year 8 in England) · 14 questions · Common Core: NGSS.MS-LS1-7, NGSS.HS-LS1-7, NGSS.MS-LS1-3, NGSS.HS-LS1-2 · England: KS3 Biology: Gas exchange systems, KS3 Biology: Cellular respiration, KS4 Combined Science: Cell biology

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1
Question 1
A nurse finds a pulse in your wrist. Which vessel is she feeling?
- A. a lymph vessel
- B. a capillary
- C. a vein
- D. an artery
2
Question 2
Which enzyme is described here: found in saliva?
- A. amylase (a carbohydrase)
- B. protease
- C. lipase
3
Question 3
What is the difference between breathing and respiration?
- A. They are exactly the same.
- B. Breathing happens in every cell.
- C. Breathing moves air in and out; respiration is a reaction in cells that releases energy.
- D. Respiration only happens in the lungs.
4
Question 4
Which part of the blood is described here: contain haemoglobin (hemoglobin) and no nucleus?
- A. red blood cells
- B. white blood cells
- C. platelets
- D. plasma
5
Question 5
Blood: which statement is true?
- A. White blood cells are the most common blood cells.
- B. Platelets carry oxygen.
- C. White blood cells help fight infection.
- D. Blood is a single kind of cell.
6
Question 6
Which organ system includes this part: bronchi?
- A. skeletal system
- B. digestive system
- C. respiratory system
- D. nervous system
7
Question 7
Respiration: which statement is NOT true?
- A. Mitochondria are where aerobic respiration happens.
- B. Respiration happens in every living cell.
- C. Respiration produces energy from nothing.
- D. Aerobic respiration releases more energy than anaerobic respiration.
8
Question 8
Food has just left the large intestine. Where does it go next?
- A. oesophagus (esophagus)
- B. mouth
- C. anus
- D. small intestine
9
Question 9
Which word equation shows the respiration happening here: yeast in a sealed flask of sugar solution?
- A. glucose → lactic acid
- B. glucose → ethanol + carbon dioxide
- C. glucose + oxygen → carbon dioxide + water
10
Question 10
What is the job of the valves in the heart?
- A. to make blood cells
- B. to stop blood flowing backwards
- C. to slow the heartbeat
- D. to add oxygen to blood
11
Question 11
Which organ makes bile?
- A. pancreas
- B. liver
- C. stomach
- D. gall bladder
12
Question 12
After a hard sprint you keep breathing fast for a while. Why?
- A. To get rid of extra glucose
- B. Because the heart has stopped
- C. To cool the lungs
- D. To get extra oxygen to break down the lactic acid (repay the oxygen debt)
13
Question 13
You straighten your knee to kick a ball. What do the hamstrings and quadriceps do?
- A. hamstrings contract, quadriceps relax
- B. quadriceps contract, hamstrings relax
- C. both contract
- D. both relax
14
Question 14
A food sample gives this result: iodine turns blue-black. Which nutrient is present?
- A. starch
- B. sugar (reducing sugar)
- C. protein
- D. fat (lipid)

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