BOTANY
PLANT ANATOMY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Wood is lighter and has higher density
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Xylary elements have wide cavity
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Ring of autumn wood alternates with spring wood to form annual ring
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Cambium is highly active during autumn
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Detailed explanation-1: -Late wood or Autumn Wood The cambium is less active at the time of autumn and winter producing lesser quantities of wood. Such a wood is darker in appearance and comprises narrow and small xylem components with relatively thicker walls. Such a cambium is referred to as late wood or autumn wood.
Detailed explanation-2: -Late wood or autumn wood is formed during winter season. It is formed after the early wood. It consists of xylem elements with narrow vessels. They are produced less in amount, more dense.
Detailed explanation-3: -The springwood is lighter in color and has a lower density. Autumn wood is darker in color and has higher density. The transition from springwood to autumn wood is slow. The transition from an autumn wood to springwood is fast.
Detailed explanation-4: -Annual ring is a combination of spring wood and autumn wood produced in a year.