Biology, asked by Anonymous, 1 year ago

plzz answer me this fast (coz urgent):- ( 20 points)

Q1 Write the main function of leucoplast.

Q2 What is the function of SER in liver cells of vertebrates?

Q3 Why the RER appears rough?

Q4 Why viruses are not supposed to be living?

Q5 What is a nucleoid?

Q6 Why dry raisins placed in water swell up?

Q7 In which part of a plant chromoplasts are found?

Q8 Where are genes located?

Q9 What will happen if we keep a plant cell or animal cell in a i) Hypotonic solution ii) Hypertonic solution iii) Isotonic solution.

Q10 Explain the importance of osmosis for living beings?

Q11 Give the historical development of cell theory.

Q12 Who coined the term “cell “ and how?

Q13 Write the contribution of (a) Robert Hooke, (b) Leeuwenhoek (c) Robert Brown

Q14 Draw a large diagram of an animal cell as seen through aan electron microscope. Label the parts that carry on the function of Respiration, secretion, protein synthesis, transport of material.

Q15 Which substance is responsible for transfer of characters from one generation to another?

(short answers plzz)

Answers

Answered by dhruvishah
21
Q1 
Main function of leucoplasts is to store starch 
Q2 
SER of liver cells detoxifies drugs and poison present in the body 
Q3
Because of ribosomes attached to ER
Q4 
They are living but get active only when on entering a host body 
Q5 
Basic unit of Nucleotide
Q6
Raisins when are placed in water, the water from the surrounding diffuses into the raisins and so the raisins swell up. The phenomenon involved is called osmosis.
Q7
present in leaves, flowers, fruits
Q8
They are located in the chromatin fibres which condense to form chromosomes and have DNA 
Q15 
genes; specificl alleles of same character present on homologous chromosomes 


Anonymous: thank u soooooooo much
dhruvishah: Ur welcome and i answered all those questions i knew...few are still left though... m sry for that
Anonymous: no problem
ankit232: y r u not completed ans from between something is left
dhruvishah: i answered all i could
Singh412: friend this is right answer
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