Tissues
This mind-mao is about tissues..I'm still editing so all of the material might not be included. Have fun studying!!🦋✨
1. Definitions
1.1. A group of cells hiving similar stucture and specific funtion
1.2. A group of calls that are similar in structure and/or work together to achieve a particular funtion
1.3. A group of cells working together to do the same funtion
2. Difference between plants and animals which results in the difference in their tissues
2.1. PLANTS
2.1.1. Are stationary
2.1.2. Energy required is less
2.1.3. Most of the tissues are dead
2.1.4. Make their own food (photosynthesis)
2.1.5. Growth is localised
2.2. ANMALS
2.2.1. Can move
2.2.2. Energy required is more
2.2.3. Most of the tissues are living ones
2.2.4. Depends on other organisms for food
2.2.5. Growth is uniformly attained over the body
3. PLANT TISSUES
3.1. Meristematic Tissues
3.1.1. are growth tissues and are actively dividing
3.1.1.1. Apical
3.1.1.1.1. Present at the tip of the roots and shoots
3.1.1.1.2. Are present to increase the lenght of the roots and stem
3.1.1.2. Lateral
3.1.1.2.1. Present INSIDE the roots and stems
3.1.1.2.2. Are present to increase the girth of the stem and roots
3.1.1.3. Intercalary
3.1.1.3.1. Present at the base of the leaves and at internodes
3.1.1.3.2. Are present to to increase the longtudinal growth of plants (basically leaves)
3.1.2. Cells of meristematic tissues
3.1.2.1. Thin cellulose walls
3.1.2.2. Prominent nuclei
3.1.2.3. Thick cytoplasm
3.1.2.4. Lack vacuoles
3.2. Permanent Tissues
3.2.1. SImple
3.2.1.1. Parenchyma
3.2.1.1.1. Mainly unspecialised cells
3.2.1.1.2. Cells have thin cell walls
3.2.1.1.3. Calls are loosely packed
3.2.1.1.4. There is a lot of intercallular space
3.2.1.1.5. It stores the food and supports the plant
3.2.1.1.6. Chlorenchyma
3.2.1.1.7. Aerenchyma
3.2.1.2. Collenchyma
3.2.1.2.1. Provides flexibilty to the parts of the plant
3.2.1.2.2. Provides support to the plant
3.2.1.2.3. Are living, elongated cells
3.2.1.2.4. Call wall is thickened at the corners
3.2.1.2.5. Have very little/less intercellular space
3.2.1.2.6. Found in leaves and stems
3.2.1.2.7. Present in the growing parts of the roots and shoots of a plant
3.2.1.3. Sclerenchyma
3.2.1.3.1. Present in the parts of the plant which are hard and stiff
3.2.1.3.2. Are dead cells
3.2.1.3.3. Cells are long and narrow as the walls are thickened due to the deposition of the chemical LIGNIN
3.2.1.3.4. There is no intercellular space
3.2.1.3.5. Provides strenght to the plants
3.2.1.3.6. Present in:
3.2.2. Complex
3.2.2.1. Xylem
3.2.2.1.1. Transports water
3.2.2.1.2. Transports from roots to all the parts of the plant
3.2.2.1.3. Types of cells present
3.2.2.1.4. Unidirectional
3.2.2.1.5. Many of the cells are dead
3.2.2.1.6. The water moves using physical forces
3.2.2.2. Phloem
3.2.2.2.1. Transports food
3.2.2.2.2. Transports from leaves to all the parts of the plant
3.2.2.2.3. Types of cells
3.2.2.2.4. Bidirectional
3.2.2.2.5. Transpotation of food requires energy in the form of ATP