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Protoplasm cannot leak / pass through the cell membrane; give the cell a strong capacity to absorb / dissolve water and other substance; provide large surface area for enzyme to act
Kavungya answered the question on September 30, 2019 at 12:05
- State two ways by which mammalian blood carry out homeostasis function.(Solved)
State two ways by which mammalian blood carry out homeostasis function.
Date posted: September 30, 2019. Answers (1)
- The organelle below is important in the process of Nutrition.(Solved)
The organelle below is important in the process of Nutrition.
a) Identify the organelle
b) Name the parts labeled
c)Name the part where the following stages of photosynthesis occur
d)State the role of light in the processes of photosynthesis
Date posted: September 30, 2019. Answers (1)
- A potential mother of blood group B- requires a blood transfusion before her first pregnancy, what blood group(s) can she receive safely if the husband...(Solved)
A potential mother of blood group B- requires a blood transfusion before her first pregnancy, what blood group(s) can she receive safely if the husband is of Rh+ ve blood. Explain your answer.
Date posted: September 30, 2019. Answers (1)
- Evolutionary changes take place in a population to maintain a balanced community, basing your answer on blood transfusion, explain the role played by nature on...(Solved)
Evolutionary changes take place in a population to maintain a balanced community, basing your answer on blood transfusion, explain the role played by nature on distribution of;
(i) Blood group O
(ii) Blood group AB in the population
Date posted: September 30, 2019. Answers (1)
- The table below shows the approximate distribution of human blood groups in a sample of 100 people in a population.
Calculate the percentage of Rhesus negative...(Solved)
The table below shows the approximate distribution of human blood groups in a sample of 100 people in a population.
Calculate the percentage of Rhesus negative (Rh -) in the whole group of donors.
Date posted: September 30, 2019. Answers (1)
- Differentiate between Chemotropism and Phototropism.(Solved)
Differentiate between Chemotropism and Phototropism.
Date posted: September 30, 2019. Answers (1)
- The diagram shows a white blood cell.
(a) (i) Explain how the bacteria got into the cell.
(ii) What happens to the bacteria once in the...(Solved)
The diagram shows a white blood cell.
(a) (i) Explain how the bacteria got into the cell.
(ii) What happens to the bacteria once in the cell?
(b) (i) Name an animal phylum which exhibit the process that lead to entry of bacteria in
the cell?
(ii) Besides the process described in (a) above, state two ways by which white blood
cell protect the body.
Date posted: September 30, 2019. Answers (1)
- a)Name the principal components of cell membrane.
(b)(i) Why would a cell allow some substances to pass through it but not others?
(ii) Other than the...(Solved)
a)Name the principal components of cell membrane.
(b)(i) Why would a cell allow some substances to pass through it but not others?
(ii) Other than the property of semi- permeability stated in b (i) above, state two other properties of a cell membrane
( c)Explain what would happen to the red blood cells if placed in concentrated salt solution.
Date posted: September 30, 2019. Answers (1)
- Give the function of the following features found in the wall of trachea and bronchi in
a mammal.
(i) Ciliated cells
(ii) Mucus secreting cells(Solved)
Give the function of the following features found in the wall of trachea and bronchi in
a mammal.
(i) Ciliated cells
(ii) Mucus secreting cells
Date posted: September 30, 2019. Answers (1)
- A student estimating a cell size of an onion epidermal cells observed the following on the microscope field of view using a transparent ruler.(Solved)
A student estimating a cell size of an onion epidermal cells observed the following on the microscope field of view using a transparent ruler.
The student identified 20 cells across the field of view. Calculate the size of the cell inMicrometers (show your working)
Date posted: September 30, 2019. Answers (1)
- Explain why a thirsty person should not drink soda to quench the thirst.(Solved)
Explain why a thirsty person should not drink soda to quench the thirst.
Date posted: September 30, 2019. Answers (1)
- State the disease and treatment in condition where is increase in blood sugar and appearance of sugar in urine of man.(Solved)
State the disease and treatment in condition where is increase in blood sugar and appearance of sugar in urine of man.
Date posted: September 30, 2019. Answers (1)
- Name the enzyme responsible for breaking down sodium hydrogen carbonate in mammalian blood to release carbon dioxide.(Solved)
Name the enzyme responsible for breaking down sodium hydrogen carbonate in mammalian blood to release carbon dioxide.
Date posted: September 30, 2019. Answers (1)
- Study the diagram below and answer the questions that follow:(Solved)
Study the diagram below and answer the questions that follow:
(a) Identify the organelle.
(b)Name the structure labelled K
(c)State two functions of the organelle named in (a) above
Date posted: September 30, 2019. Answers (1)
- Explain why vegetables should not be overcooked.(Solved)
Explain why vegetables should not be overcooked.
Date posted: September 30, 2019. Answers (1)
- State two precautions which should be taken when storing a microscope after a laboratory exercise.(Solved)
State two precautions which should be taken when storing a microscope after a laboratory exercise.
Date posted: September 30, 2019. Answers (1)
- State the use of each of the following apparatus:
I)Bait trap
ii) Specimen bottle
iii) Pitfall trap(Solved)
State the use of each of the following apparatus:
I)Bait trap
ii) Specimen bottle
iii) Pitfall trap
Date posted: September 30, 2019. Answers (1)
- The binomial name of housefly is MUSCA DOMESTICA.
i) Statetwo mistakes in the way the scientific name is written(Solved)
The binomial name of housefly is MUSCA DOMESTICA.
i) Statetwo mistakes in the way the scientific name is written.
ii) Re-write the name in correct manner following the rules of binomial nomenclature
Date posted: September 30, 2019. Answers (1)
- State advantages of fruit/seed dispersal.(Solved)
State advantages of fruit/seed dispersal.
Date posted: September 30, 2019. Answers (1)
- Name the branch of biology involved in the study of
a. Relationships of living with each other and their environment.
b. Identification and classification of organisms(Solved)
Name the branch of biology involved in the study of
a. Relationships of living with each other and their environment.
b. Identification and classification of organisms
Date posted: September 30, 2019. Answers (1)