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Tenth Grade (Grade 10) Respiration, Digestion, and Excretion Questions

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Grade 10 Respiration, Digestion, and Excretion
This most important nutrient is needed by every cell and for every process in the body. What is it?
  1. vitamins
  2. fats
  3. protein
  4. water
  5. honey
Grade 10 Respiration, Digestion, and Excretion
Which best explains why liver cells are different from blood cells?
  1. A mutation occurs during the development of blood cells but not in liver cells.
  2. Different genes are activated in blood cells than in liver cells.
  3. Blood cells experience different environmental influences than liver cells.
  4. Liver cells are produced by the liver, and blood cells are produced by the heart.
Grade 10 Respiration, Digestion, and Excretion
What is produced in the colon to help excrete the undigested food?
  1. bacteria and vitamin K
  2. vitamin C
  3. urine
  4. blood cells
  5. bacteria
Grade 10 Respiration, Digestion, and Excretion
Good cholesterol, or HDL (high density lipoproteins), is transported back to the liver to be excreted. Having good cholesterol
  1. causes atherosclerosis.
  2. causes gluten fog.
  3. slows the development of cardiovascular disease.
  4. lowers your blood pressure.
Grade 10 Respiration, Digestion, and Excretion
Fish use their fins for breathing.
  1. True
  2. False
Grade 10 Respiration, Digestion, and Excretion
Anxiety and eating spicy food together in an otherwise normal human, may lead to                .
  1. indigestion
  2. jaundice
  3. diarrhea
  4. vomiting
Grade 10 Respiration, Digestion, and Excretion
The small intestine has three parts. The first part is called                  .
  1. duodenum
  2. oesophagus
  3. larynx
  4. none of the above
Grade 10 Respiration, Digestion, and Excretion
A toxic compound that is produced when amino acids are used for energy is urea.
  1. True
  2. False
Grade 10 Respiration, Digestion, and Excretion
Mastication is swallowing food.
  1. True
  2. False
Grade 10 Respiration, Digestion, and Excretion
With a high-sugar diet, what is compromised in the body?
  1. teeth
  2. fat cells
  3. appetite
  4. bone health
Grade 10 Respiration, Digestion, and Excretion
Vitamin C helps with nerve and muscle function.
  1. True
  2. False
Grade 10 Respiration, Digestion, and Excretion
Which of the following is the excretory organs of annelids?
  1. Plasma membrane
  2. Nephridia
  3. Kidney
  4. Malpighian tubules
Grade 10 Respiration, Digestion, and Excretion
Which of the following are waste products of plants?
  1. Raphides
  2. Carbohydrate
  3. Proteins
  4. None of the above
Grade 10 Respiration, Digestion, and Excretion
Which of the following prevents collapsing of trachea?
  1. Diaphragm
  2. Ribs
  3. Cartilaginous discs
  4. Muscles
Grade 10 Respiration, Digestion, and Excretion
Why is vitamin B6 is important for the body?
  1. maturation of the red blood cells
  2. bone and tooth formation
  3. brain function and hormone production
  4. amino acid metabolism
  5. a, c, and d
  6. c and d only
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