Science, asked by nimisha22061983, 8 months ago

The basic structural unit of an organism that can function independently________
The living substance of a cell which includes the cytoplasm and nucleus_
organisms that are made up of a single cell and perform all their vital activities, like
reproduction, locomotion and digestion_
organisms that are made up of more than one cell ___
the living parts of the cell that have a definite shape, structure and function_
cells that lack a well-defined nucleus surrounded by a nuclear membrane_
cells that have a well-defined nucleus and distinct nuclear membrane _______

A. Tick the correct option.
1. Robert Hooke observed the cell in:
a. a drop of pond water b. a thin slice of cork c. a thin slice of pork
d. a thin slice of potato
2. Which of these cell organelles is found only in plant cells?
a. Chloroplast b. Mitochondria c. Ribosome d. Nucleus
3. Which of these help in the transmission of characters from parent to offspring?
a. Chloroplasts b. Mitochondria c. Ribosomes d. Chromosomes
4. In a cell, the chromosomes are present in:
a. chloroplast b. mitochondria c. ribosome d. nucleus
5. The cell wall is made up of:
a. protein b. lipid c. cellulose d. starch
6. The longest cell found in human body is:
a. muscle cell b. nerve cell c. red blood cell d. lymphocyte
7. In which of the following a single cell performs all the functions?
a. Amoeba b. Cat c. Grasshopper d. Hydra
8. Which of the following is present only in animal cells?
a. Ribosome b. Centrioles c.Cell membrane d. Nucleus

B. State whether the following statements are TRUE or FALSE.
1. Animal cell has cell wall.
2. Chloroplast is present in plant cell.
3. The cell membrane is selectively permeable._
4. Cells exist in different shapes and sizes.____
5. Cell division is required for reproduction_
6. New cells arise from pre-existing cells by cell division._
7. Small sized vacuoles are present in planning cells.
8. Animal cells and plant cells are example of prokaryotic cells.

C. Fill in the blanks.
1. ______ is the structural unit of all living organisms.
2. is a group of cells that are functionally similar to one another.
3. In a cell, are the carriers of genetic information from one generation to the other.
4. _ is called the power house of a cell.
5. _ was one of the first person to observe living cells using his high magnification microscope.
6. Plastids with pigments other than green colour are known as
7. The green pigment present in chloroplast is called .
8. is called the control centre of the cell.
9. Golgi bodies in plant cells are known ________________.

D. Give one word for the following.
1. The lowest level of organization multicellular organism.
2. The first person to discover the existence of cells.
3. Organisms that are made up of a sing cell.
4. Organisms that are made up of more than one cell.
5. The largest cell organelle that is spherical or oval in shape.
6. Cells that lack a well- defined nucleus surrounded by a nuclear membrane.
7. Cells that have a well- defined nucleus and distinct nuclear membrane.
8. The ‘suicidal bags’ of the cells.

Answers

Answered by sajisharoon

Answer:

Cell
Protoplasm
Unicellular organisms
Multicellular organisms
Cell organelles are “small organs” of the cell and are found embedded in the cytosol.
Prokaryotic cells
Eukaryotic cells

Explanation:

A. Tick the correct option.

B. State whether the following statements are TRUE or FALSE.

C. Fill in the blanks.

D. Give one word for the following.

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