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प्रश्न
On the lines given below, write about what you have learned from the activities done in this lesson.
Let me tell you about some of the important things I’ve learned about cells. First, I’ll start with…______
उत्तर
- Cell is the basic unit of an organisms.
- Based on number of cells organisms can be classified as unicellular and multicellular organisms.
- The cells form tissues, Tissues form organs, Organ system help an organism to function.
- The cell wall is seen only in plant cells.
- Cell membrane is seen only in plant cells.
- Cell membrane is seen in all cells.
- The organelles of the cell like chloroplast, Mitochondria, Ribosomes, Endoplasmic Reticulum, Golgi bodies etc help to perform cell functions.
- Nucleus is the controlling centre of a cell.
APPEARS IN
संबंधित प्रश्न
Indicate whether the following statements are True (T) or False (F).
Unicellular organisms have one-celled body. (T / F)
Indicate whether the following statements are True (T) or False (F).
Muscle cells are branched. (T / F)
Indicate whether the following statements are True (T) or False (F).
Amoeba has irregular shape. (T / F)
Suitable term for the various components of cell is ______.
Classify the following terms into cells, tissues, organs and write in the tabular column given below
Neuron, Lungs. Xylem, brain, adipose, Leaf, RBC, WBC, hand, muscle, heart, ovum, squamous, phloem, cartilage.
Cell | Tissue | organ |
Cell theory was given by
Do you agree that “A cell is a building unit of an organism”. If yes, explain why?
Draw a plant cell and label the parts which
- determines the function and development of the cell
- packages materials coming from the endoplasmic reticulum
- provides resistance to microbes to withstand hypotonic external media without bursting
- is site for many biochemical reactions necessary to sustain life. (e) is a fluid contained inside the nucleus
Identify the statement which is true for cells.
What structural and functional attributes must a cell have to be called a living cell?