| 词汇 | collenchyma |
| 释义 | BETA Examples of collenchymacollenchyma isn’t in the Cambridge Dictionary yet. You can help! The outer cortical cells often acquire irregularly thickened cell walls, and are called collenchyma cells. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Collenchyma cells are typically quite elongated, and may divide transversely to give a septate appearance. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Stretchable support (without elastic snap-back) is a good way to describe what collenchyma does. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Collenchyma cells have thin primary walls with some areas of secondary thickening. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The plant cells which contain chloroplasts are usually parenchyma cells, though chloroplasts can also be found in collenchyma tissue. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In its extended position, the cells of the entire collenchyma are distended with water. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The walls of collenchyma in shaken plants (to mimic the effects of wind etc.), may be 40100% thicker than those not shaken. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Collenchyma cells are usually living, and have only a thick primary cell wall made up of cellulose and pectin. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Collenchyma provides extra structural support, particularly in regions of new growth. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Collenchyma tissue makes up things such as the resilient strands in stalks of celery. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The term was derived from the tissue in which the cells occur: collenchyma. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The name collenchyma in turn was borrowed from botany because of a fancied, essentially irrelevant, resemblance between sponge tissue and a particular class of ground tissue in plants. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Unlike the collenchyma, mature sclerenchyma is composed of dead cells with extremely thick cell walls (secondary walls) that make up to 90% of the whole cell volume. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Composed of parenchyma, collenchyma and sclerenchyma cells. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. |
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