a) R - Sieve pore
S - Cytoplasmic strands, cytoplasmic filaments
Cell labeled T - Companion cells
b) Translocation - Its contractile is nature to push food/ organic products of photosynthesis from one sieve cell to the next
c) It is thickened or lignified to keep vessels strong and open.
johnmulu answered the question on May 2, 2017 at 09:14
-
Name two processes that bring about the translocation of manufactured food.
(Solved)
Name two processes that bring about the translocation of manufactured food.
Date posted:
May 2, 2017
.
Answers (1)
-
State two ways in which xylem vessels are adapted to their function.
(Solved)
State two ways in which xylem vessels are adapted to their function.
Date posted:
May 2, 2017
.
Answers (1)
-
The diagram below represents the pathways of water from the soil into the plant.
(Solved)
The diagram below represents the pathways of water from the soil into the plant.
a) Name the structures labeled K and L.
b) Name the process by which minerals salts enter into the plant.
Date posted:
May 2, 2017
.
Answers (1)
-
Name two structures used for gaseous exchange in plants.
(Solved)
Name two structures used for gaseous exchange in plants.
Date posted:
May 2, 2017
.
Answers (1)
-
The diagram below represents a transverse section of a young stem
(Solved)
The diagram below represents a transverse section of a young stem
a) Name the parts labeled A and B.
b) State the function of the parts labeled C, D and E
Date posted:
May 2, 2017
.
Answers (1)
-
Give three factors that determine the amount of energy a human being requires in a day
(Solved)
Give three factors that determine the amount of energy a human being requires in a day
Date posted:
May 2, 2017
.
Answers (1)
-
Describe the process of carbohydrate digestion in human beings
(Solved)
(a) How is a human stomach adapted to (i) Protein digestion? (ii) Churning?
b) What happens to the glucose synthesize during photosynthesis?
Date posted:
May 2, 2017
.
Answers (1)
-
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)