sieve tube transports carbohydrates and sugars therefore requires energy.Energy is produced in the companion cells hence it has to be close to the sieve tube so as to facilitae transport
nesh tonui answered the question on April 26, 2018 at 09:17
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Identify the external features of plants considered in classification
(Solved)
Identify the external features of plants considered in classification
Date posted:
April 24, 2018
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Answers (1)
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What causes cancer?
(Solved)
What causes cancer?
Date posted:
April 24, 2018
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Answers (1)
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What is the difference between artificial classification and modern classification
(Solved)
What is the difference between artificial classification and modern classification
Date posted:
April 24, 2018
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Answers (1)
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Name the organelle that performs each of the following functions in a cell. (a) Transport of packaged glycoproteins (b) Destruction of worn out cell organelles (c) Synthesis
(Solved)
Name the organelle that performs each of the following functions in a cell.
(a) Transport of packaged glycoproteins
(b) Destruction of worn out cell organelles
(c) Synthesis of proteins
Date posted:
April 24, 2018
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Answers (1)
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Why is it advisable for a woman to donate blood after every 3 months while a man can donate blood after every 4 months?
(Solved)
Why is it advisable for a woman to donate blood after every 3 months while a man can donate blood after every 4 months?
Date posted:
April 24, 2018
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Answers (1)
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Explain how a leaf is tested for starch
(Solved)
Explain how a leaf is tested for starch.
Date posted:
April 23, 2018
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Answers (1)
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Explain the biotic factors affecting distribution of organisms
(Solved)
Explain the biotic factors affecting distribution of organisms
Date posted:
April 22, 2018
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Answers (1)
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Describe how semicircular canals perform their functions
(Solved)
Describe how semicircular canals perform their functions
Date posted:
April 21, 2018
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Answers (1)
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Discuss the apparatus used in specimen
(Solved)
Discuss the apparatus used in specimen
Date posted:
April 21, 2018
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Answers (1)
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What is the difference between growth and reproduction?
(Solved)
What is the difference between growth and reproduction?
Date posted:
April 21, 2018
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Answers (1)
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Explain the term Gaseous exchange as used in biology
(Solved)
Explain the term Gaseous exchange as used in biology
Date posted:
April 21, 2018
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Answers (1)
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Explain the role of the kidney in the purification of blood.
(Solved)
Explain the role of the kidney in the purification of blood.
Date posted:
April 20, 2018
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Answers (1)
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Explain the role of the following in homeostasis; 1. Skin 2. Liver 3. Hypothalamus
(Solved)
Explain the role of the following in homeostasis;
1. Skin
2. Liver
3. Hypothalamus
Date posted:
April 20, 2018
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Answers (1)
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Differentiate between: 1. Heterotrophic and autotrophic modes of nutrition. 2. Photosynthesis and chemosynthesis
(Solved)
a) Differentiate between:
1. Heterotrophic and autotrophic modes of nutrition.
2. Photosynthesis and chemosynthesis
b) Explain the importance of the following in photosynthesis.
1. Guard cells
2. Xylem tissues
c) State any three adaptations of a leaf to photosynthesis.
Date posted:
April 20, 2018
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Answers (1)
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Briefly explain the following modes of nutrients; 1. Saprophytism 2. Mutualism 3. Holozoic
(Solved)
Briefly explain the following modes of nutrients;
1. Saprophytism
2. Mutualism
3. Holozoic
Date posted:
April 20, 2018
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Answers (1)
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Describe the digestion in the Ileum.
(Solved)
Describe the digestion in the Ileum.
Date posted:
April 19, 2018
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Answers (1)
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State the characteristics of movable joints
(Solved)
State the characteristics of movable joints
Date posted:
April 19, 2018
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Answers (1)
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(i) what is a joint? (ii) State the functions of joints (iii) Name the main types of joints
(Solved)
i) What is a joint?
ii) State the functions of joints
iii) Name the main types of joints
Date posted:
April 19, 2018
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Answers (1)
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Describe the bones that form the appendicular skeleton
(Solved)
Describe the bones that form the appendicular skeleton
Date posted:
April 19, 2018
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Answers (1)
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Describe how the various vertebrae are adapted to their functions
(Solved)
Describe how the various vertebrae are adapted to their functions
Date posted:
April 19, 2018
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Answers (1)