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Biology
5. The Fundamental Unit of Life
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Q39 of 59 Page 37

Bacteria do not have chloroplast but some bacteria are photoautotrophic in nature and perform photosynthesis. Which part of bacterial cell performs this?

Photoautotrophs are those which carry out the process of photosynthesis. Though bacteria do not contain any chloroplast but they do certain pigments contain photosynthetic pigments inside small vesicles. Due to these they are able to perform photosynthesis.

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37

If you are provided with some vegetables to cook. You generally add salt into the vegetables during cooking process. After adding salt, vegetables release water. What mechanism is responsible for this?

38

If cells of onion peel and RBC are separately kept in hypotonic solution, what among the following will take place? Explain the reason for your answer.

(a) Both the cells will swell.


(b) RBC will burst easily while cells of onion peel will resist the bursting to some extent.


(c) a and b both are correct.


(d) RBC and onion peel cells will behave similarly.

40

Match the following A and B











(A)



(B)



(a) Smooth endoplasmic reticulum Amoeba


(b) Lysosome


(c) Nucleoid


(d) Food vacuoles


(e) Chromatin material and nucleolus



(i) Amoeba


(ii) Nucleus


(iii) Bacteria


(iv) Detoxification


(v) Suicidal bag


41

Write the name of different plant parts in which chromoplast, chloroplast and leucoplast are present.

Questions · 59
5. The Fundamental Unit of Life
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