(A) The cell was first observed by Robert Hooke in $1665$. He examined a thin slice of cork under a primitive microscope and observed that it consiste

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(A) The cell was first observed by Robert Hooke in $1665$. He examined a thin slice of cork under a primitive microscope and observed that it consisted of many small,box-like compartments,which he termed 'cells'.

Class 9 Science THE FUNDAMENTAL UNIT OF LIFE Mix Example - THE FUNDAMENTAL UNIT OF LIFE

Easy

Who observed the cell for the first time and when?

A
Robert Hooke,$1665$
B
Anton van Leeuwenhoek,$1674$
C
Robert Brown,$1831$
D
Rudolf Virchow,$1855$

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Class 9

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Chapter

THE FUNDAMENTAL UNIT OF LIFE

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Mix Example - THE FUNDAMENTAL UNIT OF LIFE

Which type of animal cell lacks both mitochondria and endoplasmic reticulum?

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What is the significance of
$(a)$ presence of cell sap in vacuoles?
$(b)$ presence of $SER$ in liver cells?
$(c)$ presence of ribosomes on $RER$?

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Write two similarities and one dissimilarity between mitochondria and plastid.

Medium

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Name the cell organelle which is generally small-sized in animal cells and large in plant cells.

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Name the processes by which $CO_{2}$ and $H_{2}O$ move into and out of the cell.

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Who observed the cell for the first time and when?

Similar Questions

Which type of animal cell lacks both mitochondria and endoplasmic reticulum?

What is the significance of$(a)$ presence of cell sap in vacuoles?$(b)$ presence of $SER$ in liver cells?$(c)$ presence of ribosomes on $RER$?

Write two similarities and one dissimilarity between mitochondria and plastid.

Name the cell organelle which is generally small-sized in animal cells and large in plant cells.

Name the processes by which $CO_{2}$ and $H_{2}O$ move into and out of the cell.

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What is the significance of
$(a)$ presence of cell sap in vacuoles?
$(b)$ presence of $SER$ in liver cells?
$(c)$ presence of ribosomes on $RER$?