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How are club mosses different from true mosses?
Club mosses are vascular plants that have specialized tissues for transporting water and nutrients, while true mosses lack these tissues and rely on diffusion for nutrient uptake. Club mosses also produce cones for reproduction, while true mosses reproduce through spores produced in capsules. Additionally, club mosses typically have a vertical stem structure, while true mosses have a prostrate growth form.
Do all angiosperms undergo secondary growth?
No, not all angiosperms undergo secondary growth. Secondary growth is primarily seen in woody angiosperms like trees and shrubs, where it contributes to the thickening of stems and roots. Herbaceous angiosperms, on the other hand, typically do not exhibit secondary growth.
Do monocots have vascular cambium?
No, monocots do not have a vascular cambium. Vascular cambium is a type of meristematic tissue found in dicots that produces secondary xylem and phloem, allowing for secondary growth in stems. Monocots lack this tissue layer and instead exhibit primary growth throughout their lifespan.
Why do monocot plants not show secondary growth?
In a monocot stem, vascular bundles are scattered throughout the stem. However, because the of the lack of vascular cambium, no secondary growth occurs in the monocot stem. As a result of increased cell size, the monocot stem will only increase in height only.
Cells produced by lateral meristems are known as?
Secondary growth results in the formation of cells produced by lateral meristems, which are called secondary growth tissues. These tissues include vascular cambium and cork cambium, which produce secondary xylem and phloem, as well as cork, respectively.
What is responsible for secondary growth in a stem?
Vascular cambium is responsible for secondary growth in a stem.
Which group of plant has secondary growth and which never do?
Gymnosperms and dicots have secondary growth, which is the ability to grow in girth and produce wood. In contrast, monocots do not exhibit secondary growth and rely on primary growth for their development.
What is periderm in secondary growth?
Secondary growth in cortical region forms secondary cortex inside and periderm outside the cortical cambium
Do Woody plants lack secondary growth?
No, woody plants do not lack secondary growth. Secondary growth is the process by which plants increase their girth through the production of secondary tissues such as wood and bark, which woody plants exhibit. This growth allows woody plants to increase in size and longevity.
What is difference between primary growth and secondary growth?
Primary growth is when the stem or root of a plant gets lengthens, and secondary growth is when the stem/root gets thicker.
Do all angiosperms undergo secondary growth?
No, not all angiosperms undergo secondary growth. Secondary growth is primarily seen in woody angiosperms like trees and shrubs, where it contributes to the thickening of stems and roots. Herbaceous angiosperms, on the other hand, typically do not exhibit secondary growth.
How are club mosses different from true mosses?
Club mosses are vascular plants that have specialized tissues for transporting water and nutrients, while true mosses lack these tissues and rely on diffusion for nutrient uptake. Club mosses also produce cones for reproduction, while true mosses reproduce through spores produced in capsules. Additionally, club mosses typically have a vertical stem structure, while true mosses have a prostrate growth form.
What are the different types of secondary growth in dicots?
1. Normal type of secondary growth in the cortical and vascular regions adding to the secondary xylem ,secondary phloem and periderm at their proper places 2. Various types of anomalous secondary growth putting paches of xylem & phloem abnormally.
What is meat by primary and secondary growth in vascular plants?
The primary growth in vascular plants takes place with the differentiation of vascular tissue from parenchymatous cells and the secondary growth takes place when the intra-vascular and inter vascular cambium adds to the secondary phloem and secondary xylem.
How do plants that lack a secondary growth increase growth?
cells get bigger
Do mosses hibernate?
Mosses are primitive plants that do not hibernate but instead go through a period of dormancy during unfavorable conditions. They can tolerate cold temperatures and lack of water by slowing down their growth and metabolic activities until conditions become more suitable for growth.
What is extrastelar secondary growth?
Extra stelar secondary growth occurs due to th activity of cork cambium.... It produces cork cells and parenchyma cells.... In extra stelar secondary growth there is no annual ring formation.... It later on leads to the formation of periderm and lentices.... sanjana arun
