1. State the functions of chromosome in a cell. 2. Write two similarities and one dissimilarity between mitochondria and plastid. 3. Name the cell organelle that you would associate with the elimination of old and worn out cells. 4. List two types of plastids and state one function of each. 5. Name two cell organelles that contain their own genetic material.
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(❶) The function chromosomes are carry all necessary information to different functions of the cell.
(❷) Similarities are:-
[1] They both have a double membrane.
[2] They both have their own DNA.
:-Dissimilarities are:-
[1] Mitochondria produces energy in the form of ATP whereas Plastids manufacture food.
(❸) Lysosome.
(❹) Two types of Plastids are:-
[1] Chloroplasts:- It functions are to photosynthesis is mainly to contain most of the reaction during photosynthesis.
[2] Chromoplasts:- It functions are to give the colour of flowers.
(❺) Mitochondria and Plastids.
(❷) Similarities are:-
[1] They both have a double membrane.
[2] They both have their own DNA.
:-Dissimilarities are:-
[1] Mitochondria produces energy in the form of ATP whereas Plastids manufacture food.
(❸) Lysosome.
(❹) Two types of Plastids are:-
[1] Chloroplasts:- It functions are to photosynthesis is mainly to contain most of the reaction during photosynthesis.
[2] Chromoplasts:- It functions are to give the colour of flowers.
(❺) Mitochondria and Plastids.
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1.They carry the genetic characters from on generation to another.
3. lysosomes.
4.chloroplasts : These contain a green pigment chlorophyll , which is found only in green parts of the plant orange and yellow pigments are also present , but they are masked by the large quantity of chlorophyll .(ii) chromoplasts : They contain yellow , orange and red pigments and are mostly present in the petals of flower and fruits . The pigments present in them are Xanthophll and carotene .(iii) Leucoplasts : These ara colourless plasts without any pigment .
functions : colour:chromoplasts give characteristic colour to the flowers and fruits ,(ii) storage : leucoplasts store food in the form of starch.
3. lysosomes.
4.chloroplasts : These contain a green pigment chlorophyll , which is found only in green parts of the plant orange and yellow pigments are also present , but they are masked by the large quantity of chlorophyll .(ii) chromoplasts : They contain yellow , orange and red pigments and are mostly present in the petals of flower and fruits . The pigments present in them are Xanthophll and carotene .(iii) Leucoplasts : These ara colourless plasts without any pigment .
functions : colour:chromoplasts give characteristic colour to the flowers and fruits ,(ii) storage : leucoplasts store food in the form of starch.
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