3.3.3 Nutrition in the Human3.3.4 Human Digestive System 1

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Q. What is meant by the term omnivore?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. What is meant by absorption?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. What is an autotrophic organism?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. What is meant by the term digestion?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. What is peristalsis?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. Why is a low pH important in the stomach?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. The passage of the products of digestion from the intestine to the blood is called ...

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. What is a carnivore?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. Why is fibre important?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. Name an enzyme that is involved in the digestion of fat.

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. State a role of beneficial bacteria in the alimentary canal.

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. State two ways in which the villi are adapted for the absorption of soluble foods.

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. What is a protease enzyme?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

Please CLICK on THIS BOX

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Q. What is a herbivore?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

Please CLICK on THIS BOX

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Q. What is a heterotrophic organism?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

Please CLICK on THIS BOX

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Q. What are the final products of the digestion of a protein?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. Name a carbohydrate-digesting enzyme in the human alimentary canal

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. What is the role of bile in fat digestion?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

Please CLICK on THIS BOX

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Q. Where in the alimentary canal does this amylase act?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. Describe two functions of bile in relation to digestion.

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. Where is lipase produced?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. What are the products of fat digestion?

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. State the product(s) of amylase digestion.

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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Q. Name a structure in the human digestive system, other than teeth, which is involved in mechanical digestion.

Absorption

Animal that eats both animals and plants

Breaks down protein

Breaking down food

Animal that feeds on plants only

Kills germs; Optimal pH for enzymes

Fatty acids and glycerol

Emulsification; Neutralisation or Raises pH; Makes alkaline

Emulsification

Lipase

Maltose

Movement across membrane into blood or lymph

Muscular contractions to move food

Pancreas

Large surface area; Rich blood supply; Thin-walled; Lacteal

Uses food already made by other organisms

Production of vitamins; Inhibition of pathogens

Prevent constipation; Prevent bowel cancer; For peristalsis

Tongue; Oesophagus; Stomach; Small intestine

Amino acids

Makes its own food

Amylase

Mouth and Small intestine

Animal that feeds on animals only

CONGRATULATIONS

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