Get premium membership and access questions with answers, video lessons as well as revision papers.
Counter current flow occurs through flow of water and blood in different directions within the respiratory system of a fish.This is mainly achieved by the blood taking in more oxygen with itself depending on the period of time the blood is exposed to water with high oxygen levels.This ensures that as the blood moves through the gills oxygen continues being obtained from water with the high oxygen concentration.This continues where the gills obtains more fresh water with more oxygen concentration and offloading the oxygen to gills thus maintaining a partial pressure oxygen within the gills.In this process the low oxygen blood combines with low oxygen water while, the high oxygen blood meets with the high oxygen water.
franco crick answered the question on March 9, 2018 at 12:48
- What is an oligopeptide?
How is it different from a
polypeptide?(Solved)
What is an oligopeptide?
How is it different from a
polypeptide?
Date posted: March 7, 2018. Answers (1)
- What happens when rhesus positive blood is given to rhesus negative recipient?(Solved)
What happens when rhesus positive blood is given to rhesus negative recipient?
Date posted: March 6, 2018. 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: March 5, 2018. Answers (1)
- If you push the plunger of a syringe in (in a closed system) what happens when you release the plunger? Why?(Solved)
If you push the plunger of a syringe in (in a closed system) what happens when you release the plunger? Why?
Date posted: March 5, 2018. Answers (1)
- Ways in which manufactured food are utilized by plants
(Solved)
Ways in which manufactured food are utilized by plants
Date posted: March 4, 2018. Answers (1)
- Explain ways to prevent the spread of HIV/ Aids among youths in Kenyan society(Solved)
This question as one answers should answer in. Away that can be of use to the society
Date posted: March 3, 2018. Answers (1)
- What is the significance of alteration of generations?(Solved)
What is the significance of alteration of generations?
Date posted: March 2, 2018. Answers (1)
- What is the importance of air in living organisms?(Solved)
What is the importance of air in living organisms?
Date posted: March 1, 2018. Answers (1)
- What is photosynthesis?(Solved)
What is photosynthesis?
Date posted: March 1, 2018. Answers (1)
- Name the respiratory diseases (Solved)
Name the respiratory diseases
Date posted: March 1, 2018. Answers (1)
- State the functions of lysosomes (Solved)
State the functions of lysosomes
Date posted: March 1, 2018. Answers (1)
- State the precautions that are necessary when handling a microscope (Solved)
State the precautions that are necessary when handling a microscope
Date posted: March 1, 2018. Answers (1)
- Trace the path followed by a molecule of glucose from the time of absorption to a cell in the brain(Solved)
Trace the path followed by a molecule of glucose from the time of absorption to a cell in the brain.
Date posted: February 28, 2018. Answers (1)
- What is eutrophication and its effects?(Solved)
What is eutrophication and its effects?
Date posted: February 28, 2018. Answers (1)
- Trace the pathway through which nitrogen gas in the atmosphere is eventually incorporated in the tissues of a carnivore(Solved)
Trace the pathway through which nitrogen gas in the atmosphere is eventually incorporated in the tissues of a carnivore.
Date posted: February 26, 2018. Answers (1)
- Describe how the following parts are adapted to their functions. (a)Cardiac muscles (b)Ventricles (c)Pericardium(Solved)
Describe how the following parts are adapted to their functions.
(a)Cardiac muscles
(b)Ventricles
(c)Pericardium
Date posted: February 26, 2018. Answers (1)
- (a) State three processes by which flowering plants excrete waste products and for each process name two waste products that are eliminated. (b) Describe the...(Solved)
(a) State three processes by which flowering plants excrete waste products and for each process name two waste products that are eliminated.
(b) Describe the functions of the various components of the mammalian blood.
Date posted: February 23, 2018. Answers (1)
- Describe the nitrogen cycle(Solved)
Describe the nitrogen cycle
Date posted: February 23, 2018. Answers (1)
- (a) Describe the photosynthetic theory of opening and closing of the stomata.
(b) Describe the regulation of blood sugar level in man.(Solved)
(a) Describe the photosynthetic theory of opening and closing of the stomata.
(b) Describe the regulation of blood sugar level in man.
Date posted: February 23, 2018. Answers (1)
- The pancreas and the liver work together in the regulation of glucose in the blood.
i) State the role of these organs when the concentration...(Solved)
The pancreas and the liver work together in the regulation of glucose in the blood.
i) State the role of these organs when the concentration of glucose in blood is below normal.
ii) What would be the effect of removing the pancreas from the body?
iii) Distinguish between diabetes mellitus and diabetes insipidus
Date posted: February 23, 2018. Answers (1)