a) (i) - Has gastrin gland which produces pepsin enzyme that digests proteins to peptides, also had renin that curds milk.
-Gastric juice contains hydrochloric acid that provides acidic medium for maximum pepsin enzyme activity to digest proteins.
-Has goblet cells that secrete mucus to line the stomach wall against protein digesting enzymes and corrosion by hydrochloric acid.
ii) Has smooth muscle than contain thick circular and longitudinal layers which contract and relax producing movements that mix contents of the stomach
b) - Some glucose is oxidized by the plant cell to yield energy.
- Some is converted to starch for storage in various plant tissues
johnmulu answered the question on May 2, 2017 at 07:36
-
a)Name the appropriate food substance from substance for each of the following enzymes (i)Ptyalin (ii) Pepsin
(Solved)
a)Name the appropriate food substance from substance for each of the following enzymes (i)Ptyalin (ii) Pepsin(b) State the causes and two symptoms of Beri-beri.
Date posted:
May 2, 2017
.
Answers (1)
-
State two ways in which the human intestinal villus is adapted to its function.
(Solved)
State two ways in which the human intestinal villus is adapted to its function.
Date posted:
May 2, 2017
.
Answers (1)
-
Name two nutrients that are absorbed without being digested by enzymes in humans.
(Solved)
Name two nutrients that are absorbed without being digested by enzymes in humans.
Date posted:
May 2, 2017
.
Answers (1)
-
The diagram below represents part of the human digestive system.
(Solved)
The diagram below represents part of the human digestive system.
a) Name the organs labelled L and M.
b) i) Name the substance produced by the organ labeled K
ii) State the function of the substance named in b (i) above
Date posted:
May 2, 2017
.
Answers (1)
-
State the functions of carbohydrates in the human body.
(Solved)
State the functions of carbohydrates in the human body.
Date posted:
May 1, 2017
.
Answers (1)
-
What is the role of bile salts in digestion in humans?
(Solved)
What is the role of bile salts in digestion in humans?
Date posted:
May 1, 2017
.
Answers (1)
-
The diagram below represents the lower jaw of a mammal
(Solved)
The diagram below represents the lower jaw of a mammal
a) Name the mode of nutrition of the mammal whose jaw is shown.
b) i) Name the toothless gap labeled K.
ii) State the function of the gap.
c) Name the substance that is responsible for hardening of teeth.
Date posted:
May 1, 2017
.
Answers (1)
-
Explain how the following factors determine the daily energy requirement in human:(a)Age(b)Occupation(c) Sex
(Solved)
Explain how the following factors determine the daily energy requirement in human:
(a)Age
(b)Occupation
(c) Sex
Date posted:
May 1, 2017
.
Answers (1)
-
State the function of iron in the human body.
(Solved)
State the function of iron in the human body.
Date posted:
May 1, 2017
.
Answers (1)
-
Explain how the carnassial teeth of a dog are adapted to their function.
(Solved)
Explain how the carnassial teeth of a dog are adapted to their function.
Date posted:
May 1, 2017
.
Answers (1)
-
a) The action of ptyalin stops at the stomach. Explain.(b) State a factor that denatures enzymes(c) Name the features that increase the surface area of small intestines
(Solved)
a) The action of ptyalin stops at the stomach. Explain.
b) State a factor that denatures enzymes
c) Name the features that increase the surface area of small intestines
Date posted:
May 1, 2017
.
Answers (1)
-
a) Name a fat soluble vitamin manufactured by the human body.(b) State two functions of potassium ions in the human body
(Solved)
a) Name a fat soluble vitamin manufactured by the human body.
b) State two functions of potassium ions in the human body
Date posted:
May 1, 2017
.
Answers (1)
-
The diagram below represents a section though a human tooth
(Solved)
The diagram below represents a section though a human tooth
a) i) Name the type of tooth shown.
ii) Give a reason for your answer in (a)(i) above.
b) State the functions of potassium ions in the human body.
Date posted:
May 1, 2017
.
Answers (1)
-
a) State three functions of bile juice in the digestion of food.
(b) How does substrate concentration affect the rate of enzyme action?
(Solved)
a) State three functions of bile juice in the digestion of food.
(b) How does substrate concentration affect the rate of enzyme action?
Date posted:
May 1, 2017
.
Answers (1)
-
a) Distinguish between the terms homodont and heterodont
b) What is the function of carnassial teeth?
(Solved)
a) Distinguish between the terms homodont and heterodont
b) What is the function of carnassial teeth?
Date posted:
May 1, 2017
.
Answers (1)
-
State the role of vitamin C in humans
(Solved)
State the role of vitamin C in humans
Date posted:
May 1, 2017
.
Answers (1)
-
State a function of the large intestine in humans
(Solved)
State a function of the large intestine in humans
Date posted:
May 1, 2017
.
Answers (1)
-
What happens to excess fatty acids and glycerol in the body
(Solved)
What happens to excess fatty acids and glycerol in the body
Date posted:
May 1, 2017
.
Answers (1)
-
a) State the function for co-factors in cell metabolism
b) Give one example of a metallic co -factor
(Solved)
a) State the function for co-factors in cell metabolism
b) Give one example of a metallic co -factor
Date posted:
May 1, 2017
.
Answers (1)
-
State two functions of muscles found in the alimentary canal of mammals
(Solved)
State two functions of muscles found in the alimentary canal of mammals
Date posted:
May 1, 2017
.
Answers (1)