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Primary growth is the lengthening of the stem and roots. All plant growth occurs by cell division and cell elongation. Cell division occurs primarily in regions of undifferentiated cells known as meristems. Cell division in the apical meristems and subsequent elongation and maturation of the new cells produces primary growth." on the other hand, secondary growth is the result of the activity of the vascular cambium. The latter is a meristem that divides to produce secondary xylem cells on the inside of the meristem (the adaxial side) and secondary phloem cells on the outside (the abaxial side). This growth increases the girth of the plant root or stem, rather than its length, hence the phrase "secondary thickening". As long as the vascular cambium continues to produce new cells, the stem or root will continue to grow in diameter. In woody plants, this process produces wood.
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What is a band of cartilage called between the primary osstification center and the secondary osstification center?
The band of cartilage between the primary and secondary ossification centers is called the epiphyseal plate or growth plate. It is responsible for longitudinal bone growth in children and adolescents.
Do growth plates lie between primary and secondary ossification centers?
Yes, growth plates (also known as epiphyseal plates) are located between the primary and secondary ossification centers in long bones. They allow for longitudinal bone growth by producing new cartilage cells that are eventually replaced by bone tissue. Once growth is complete, the growth plates ossify and the bone stops growing in length.
What is the diffeence between primary and secundary growth?
Primary growth refers to the lengthening of plant stems and roots, primarily through cell division at the tips of these structures. Secondary growth, on the other hand, involves the thickening of stems and roots through the lateral growth of vascular tissue, resulting in an increase in girth or diameter.
How do plants that lack a secondary growth increase girth?
Plants that lack secondary growth increase girth through primary growth, which involves cell division and expansion in the primary tissues of the plant (such as the primary xylem and phloem). These plants rely on the activity of their apical meristems to produce new cells that allow for a limited increase in girth over time.
Difference between primary and secondary phloem?
Primary phloem 1. . Derived from procambium of apical meristem. 2. . District protophloem and metaphloem elements.3 Sieve tubes long and narrow. 3. Less or no development of phloem parenchyma. 4. Phloem fibres on the outer part. Secondary phloem 1. . Derived from vascular cambium. 2. . No clear demarcation between protophloems and metaphloems. 3. Sieve tubes short and wide. 4. .Well developed and abundant phloem parenchyma. 5. . Phloem fibers among the phloem parenchyma.
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.
Why is the difference between primary and secondary succession not always clear?
The difference between primary and secondary succession may not always be clear because both processes involve the establishment and growth of plant and animal communities over time. Primary succession occurs in areas that were previously devoid of life, like after a volcanic eruption, while secondary succession occurs in areas that already had life but were disturbed, like after a forest fire. The transitions between primary and secondary succession can be blurred in cases where the initial disturbance was severe, erasing most previous lifeforms.
What is a band of cartilage called between the primary osstification center and the secondary osstification center?
The band of cartilage between the primary and secondary ossification centers is called the epiphyseal plate or growth plate. It is responsible for longitudinal bone growth in children and adolescents.
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 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.
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.
Are the tissue found in the monocot stem primary?
Yes ! They are primary tissues as there is no secondary growth.
What effect could a cold winter with little precipitation have on the primary and secondary growth of a tree?
The effect that a cold winter with little precipitation might have a negative effect on the primary and secondary growth of a tree because the lack of water and harsh weather conditions aren't too good for trees. Primary and secondary growth is continued for as long as a tree/plant survives. But if the tree doesn't survive, primary and secondary growth no longer happen.
Do growth plates lie between primary and secondary ossification centers?
Yes, growth plates (also known as epiphyseal plates) are located between the primary and secondary ossification centers in long bones. They allow for longitudinal bone growth by producing new cartilage cells that are eventually replaced by bone tissue. Once growth is complete, the growth plates ossify and the bone stops growing in length.
What does the primary growth of plant add and while secondary growth adds?
Primary growth in plants adds length to the stems and roots through cell division in the apical meristems. Secondary growth, on the other hand, adds girth to the stems and roots through cell division in the lateral meristems, such as vascular and cork cambium.
What is the difference between primary and secondary metabolites?
Metabolites are the intermediates and products of metabolism. The term metabolite is usually restricted to small molecules. A primary metabolite is directly involved in normal growth, development, and reproduction. A secondary metabolite is not directly involved in those processes, but usually has an important ecological function that means secondary metabolite usually is not that important for the organism and if this secondary meatbolite is not present it would not harm the organism.Now the examples for ur further help primary metabolites-- enzymes certain proteins .Secondary metabolite---- antibiotics, pigments etc
What is the difference between expansion and growth?
what is the difference between growth and expansion
