The cell membrane is said to be semi permeable since it allows small molecules to pass through but not those with large sizes. For example in a case where the cell membrane is surrounded by a dilute sugar solution, the water molecules will pass but not the large sugar molecules.
Faimus answered the question on December 4, 2017 at 14:04
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The cell membrane forms the outer covering of animal cells. Give its properties.
(Solved)
The cell membrane forms the outer covering of animal cells. Give its properties.
Date posted:
December 4, 2017
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Answers (1)
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Differentiate between an organ and organ system giving an example for each
(Solved)
Differentiate between an organ and organ system giving an example for each
Date posted:
December 4, 2017
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The following are tissues found in plants, briefly explain their functions: (i) Epidermal tissue (ii)Parenchyma tissue
(Solved)
The following are tissues found in plants, briefly explain their functions:
(i) Epidermal tissue
(ii) Parenchyma tissue
Date posted:
December 4, 2017
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Differentiate between a cell and a tissue.
(Solved)
Differentiate between a cell and a tissue.
Date posted:
December 4, 2017
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Define cell specialization and give an example.
(Solved)
Define cell specialization and give an example.
Date posted:
December 4, 2017
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In the preparation of temporary slides, the following measures are taken into consideration state their importance: (i) Using iodine (ii)Adding a drop of water to the specimen....
(Solved)
In the preparation of temporary slides, the following measures are taken into consideration state their importance:
(i) Using iodine
(ii) Adding a drop of water to the specimen.
(iii) Using a thin piece of the specimen
Date posted:
December 4, 2017
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Answers (1)
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Give four differences between a plant cell and an animal cell.
(Solved)
Give four differences between a plant cell and an animal cell
Date posted:
December 4, 2017
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Answers (1)
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Name two organelles found in the plant cells only.
(Solved)
Name two organelles found in the plant cells only.
Date posted:
December 4, 2017
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Name the cell organelles that are found in large amounts in muscle cells.
(Solved)
Name the cell organelles that are found in large amounts in muscle cells.
Date posted:
December 4, 2017
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Answers (1)
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Give the functions of the following cell organelles (i) Centrioles (ii) Ribosomes (iii) Golgi apparatus
(Solved)
Give the functions of the following cell organelles
(i) Centrioles
(ii) Ribosomes
(iii) Golgi apparatus
Date posted:
December 4, 2017
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Answers (1)
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Give 5 differences between the light microscope and electron microscope
(Solved)
Give 5 differences between a light microscope and electron microscope.
Date posted:
December 4, 2017
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During a practical lesson, a student noticed the specimen could not be seen clearly when viewed using the microscope. Give 3 cause of the ...
(Solved)
During a practical lesson, a student noticed that the specimen could not be seen clearly when viewed using the microscope. Give 3 causes of the situation.
Date posted:
December 4, 2017
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Answers (1)
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Briefly explain any 4 the precautions taken when handling the microscope.
(Solved)
Briefly explain any 4 of the precautions taken when handling the microscope.
Date posted:
December 4, 2017
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The following are parts of a microscope. Give their functions. (i) Fine adjustment knob (ii) Diaphragm (ii) Body tube
(Solved)
The following are parts of a microscope. Give their functions.
(i) Fine adjustment knob
(ii) Diaphragm
(iii) Body tube.
Date posted:
December 4, 2017
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Answers (1)
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Give the functions of the following parts of a microscope (i) Revolving nose piece (ii) Condenser (iii) Eye piece
(Solved)
Give the functions of the following parts of a microscope
(i) Revolving nose piece
(ii) Condenser
(iii) Eye piece
Date posted:
December 4, 2017
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Answers (1)
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A student wrote the scientific name of a living organism as homo sapiens. What mistakes did the student commit
(Solved)
A student wrote the scientific name of a living organisms as homo sapiens. What mistakes did the student commit.
Date posted:
December 4, 2017
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Answers (1)
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Explain why living organisms belonging to the same genus but different species cannot reproduce.
(Solved)
Explain why living organisms belonging to the same genus but different species cannot reproduce
Date posted:
December 4, 2017
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Give two differences between common names and scientific names.
(Solved)
Give two differences between common names and scientific names
Date posted:
December 4, 2017
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Define the term binomial nomeclature and name 4 of its principles.
(Solved)
Define the term binomial nomenclature and name 4 of its principles
Date posted:
December 4, 2017
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Answers (1)
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Name the five kingdoms naming an example for each.
(Solved)
Name the five kingdoms naming an example for each.
Date posted:
December 3, 2017
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Answers (1)