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Question
What would have happend ? If.........
A. RBCs had mitochondria.
B. There had been no differences between mitochondria and plastids.
C. Genes had been absent on the chromosomes.
D. Plasma membrane had not been selectively permeable.
E. Plants lacked anthocyanin.
A. RBCs had mitochondria.
B. There had been no differences between mitochondria and plastids.
C. Genes had been absent on the chromosomes.
D. Plasma membrane had not been selectively permeable.
E. Plants lacked anthocyanin.
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Solution
a. RBC's are a type of cells which are found in blood. Their function is to carry oxygen to different cells and tissues of the body. They do not contain mitochondria for two purposes:
firstly, it saves the space in the red blood cells and so more of oxygen can bind to it
secondly, it prevents the use of oxygen which is bounded to RBC's.
If mitochondria would have been present in RBC's, the oxygen which is carried by them will be used up by the RBC's. Thus, there will be less or no oxygen left which can be transported to the cells and tissues.
b. Mitochondria and plastids are two different structures and they have specific functions. Mitochondria are found in both plants and animals whereas plastids are found only in plants. The main role of mitochnodria is to provide energy to the cells for carrying out their various functions. If, there would have been no difference between mitochondria and plastids, there would have been no structure which would provide energy and thus all the processes which take place in the cell would cease.
c. Genes are hereditary structures which contain the information which is passed on from one generation to another. They are required for the transmission of information from one generation to another. They are responsible for the characteristics of all the living organisms. They store the information for the various processes which occur in all the living organisms.
d. Plasma membrane is selectively permeable which means it allows the entry or exit of selective materials inside and outside the cell. In its absence, the regulated movement of substances in and out of the cell will be affected.
e. Anthocyanin is a pigment which is present in plants and imparts them purplish colour. In the absence of this pigment, the structures which usually have purple colour due to its presence would appear colourless.
firstly, it saves the space in the red blood cells and so more of oxygen can bind to it
secondly, it prevents the use of oxygen which is bounded to RBC's.
If mitochondria would have been present in RBC's, the oxygen which is carried by them will be used up by the RBC's. Thus, there will be less or no oxygen left which can be transported to the cells and tissues.
b. Mitochondria and plastids are two different structures and they have specific functions. Mitochondria are found in both plants and animals whereas plastids are found only in plants. The main role of mitochnodria is to provide energy to the cells for carrying out their various functions. If, there would have been no difference between mitochondria and plastids, there would have been no structure which would provide energy and thus all the processes which take place in the cell would cease.
c. Genes are hereditary structures which contain the information which is passed on from one generation to another. They are required for the transmission of information from one generation to another. They are responsible for the characteristics of all the living organisms. They store the information for the various processes which occur in all the living organisms.
d. Plasma membrane is selectively permeable which means it allows the entry or exit of selective materials inside and outside the cell. In its absence, the regulated movement of substances in and out of the cell will be affected.
e. Anthocyanin is a pigment which is present in plants and imparts them purplish colour. In the absence of this pigment, the structures which usually have purple colour due to its presence would appear colourless.
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