Advertisements
Advertisements
Question
Give two differences between heartwood and sapwood.
Solution
| Sapwood (Alburnum) | Heartwood (Duramen) |
| 1. It is the outer wood of an old stem. 2. It is light coloured. 3. Living cells are present. 4. Sapwood is the functional part of the secondary xylem or wood. |
1. It is the central wood of an old stem. 2. Heartwood is dark coloured. 3. Living cells are absent. 4. Heartwood is the non-functional part of secondary xylem. (any two points) |
APPEARS IN
RELATED QUESTIONS
Why are cucurbit plants said to be monoecious ?
Explain the term perianth.
Answer the following question.
It is commonly observed that parents feel embarrassed to discuss freely with their adolescent children about sexuality and reproduction. The result of this parental inhibition is that the children go astray sometimes.
By taking one example of a local plant and animal, how would you help these parents to overcome such inhibitions about reproduction and sexuality?
The period from birth to the natural death of an organism represents ______.
When living tissue from a plant is extracted and placed in a medium, it is called ______.
______ shows totipotency.
The property of an undifferentiated cell that has the potential to develop into an entire plant is called ______.
The development of root and shoot in tissue culture is determined by ______.
Which of the following plant cells will show totipotency?
‘The Evil Quartet’ describes the rates of species extinction due to human activities. Explain how the population of organisms is affected by fragmentation of the habitats.
