NEET Important Questions on Anatomy of Flowering Plants with Solutions
FAQs on NEET Anatomy of Flowering Plants Important Questions
1. What are the types of plant tissues? Explain them.
Plant tissues are divided into two types:
Meristematic Tissue
Tissues are divided actively. They are of three types:
Apical: Found at the tip and also produced primary tissues. Examples are dermal, vascular, and ground tissues.
Intercalary Meristem: can be found in grasses between the tissues that are matured.
Lateral Meristem: they produce secondary tissues. Example is Cambium.
Permanent Tissue
These tissues do not divide further after attaining the specialised structure and also the function. They are of two types:
Simple Tissue: these tissues have only one type of cells and have the same structure and function as well.
- Complex Tissues: they have more than one type of cell. All the cells work in coordination.
2. What is an epidermal tissue system?
The epidermal tissue system can be understood by given points:
These tissues comprise the outer covering of the plants. The epidermis, cuticle, epidermal extensions, stomata, and root hair are epidermal tissues.
Stomata help and also regulate gaseous exchange and also the water loss by transpiration.
Guard cells are shaped like beans in dicots and they also contain chlorophyll.
Grasses have guard cells that are shaped like dumb-bell.
- Root hair and Trichomes are unicellular and multicellular, respectively.
3. Explain vascular tissue system in plants.
The explanation is given below:
Vascular tissue system has Xylem and Phloem.
Dicots also have cambium that is present between the phloem and xylem of the vascular bundle.
The secondary Vascular System is formed by Cambium.
Closed type of vascular bundles are present in Monocots, which mean the cambium is absent here.
The radial arrangement of vascular bundles are found in Root Hair, which means that Phloem and Xylem are present in an alternate manner.
- Conjoint Arrangement of vascular bundles are present in Stem and Leaves, which means Phloem and Xylem are present in the same radius.
4. What are dicotyledonous stems?
Dicotyledonous Stems are the outermost layer present in the epidermis with cuticle, other features are mentioned below:
Stomata and Trichomes are sometimes present on the epidermis.
Cortex has three layers namely outermost hypodermis (collenchymatous), middle parenchymatous cortical layer, and the endodermis containing starch grains.
Endodermis, radially located medullary rays, and pericycle are present
In ring-like shaped vascular bundles are arranged
- These vascular bundles are conjoined, open, and are connected with each protoxylem.
5. Describe Monocotyledonous Leaf.
These leaves are also known as isobilateral because both sides of these leave are similar on both cells:
They have parallel venation.
Equally distributed Stomata on both sides are present.
The mesophyll is not being differentiated between spongy parenchyma and palisade cells.
Cells of the epidermis are modified to the larger cells known as bulliform cells in the grasses. These help in minimising the water loss.
The vascular Bundles are of the same sizes.