Question

3
differentiate the following
- meristemetic tissue and Ground tissue
-Apical meristem and lateral meristerm
-Parenchyma and collenchyma
Sclerenchyma and Parechyma
- xylen and phloem
Epidermis and bark​

Answer 1

Answer:

1--meristematic tissue

meristematic tissues are present only tip and sides and in between layers of others tissues

• small and have thin cell wall
• living with prominent nucleus and abundant cytoplasm
• compactly arranged without intercellular spaces
• continuously dividing cells.

ground tissue

• ground tissue is abundant in all the parts of plant and give support and stores food
• it is of three types parenchyma, collenchyma,and sclerenchyma
• the cells of ground tissue forms the bulk of the plant body.

2--apical meristem

• meristematic tissues at the growing tip the bring about growth in length are called as apical meristem

lateral meristem

• tissues present around the edges in a lateral manner and giving rise to growth in the grith of stem are called lateral meristem it is also called cambium.

3--parenchyma

• the cells of parenchyma soft thin walled and loosely packed
• parenchyma which contains chloroplast is called chlorenchyma
• which contains air space is called aerenchyma
• which stores food is called storage parenchyma.

collenchyma

• calling timer tissues are thick walled and longer in size when compared with parenchyma
• calling timer cells and living and provide structural support.

4--sclerenchyma

• cells are thick walled
• tightly packed without spaces

parenchyma

• cells are soft
• thin walled and loosely pack

5--xylem

• responsible for transportation of materials like water and Salt from root
• contains a elongated tracheid cells, tubular vessels ,fibres and parenchyma

pholem

• responsible for transportation of food materials prepared during photosynthesis to the other parts of plant
• phloem contains long sieve cells,sieve tubes, companion cells, fibres and parenchuma.

6--epidermis

• epidermis is the outermost of the layer. small pores are seen in the epidermis of leaf called

bark

• in Big trees the dermal tissue forms several layers about the epidermis it is called bark

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