Ch-12 Extended learning

Chapter-12

Reproduction in Plants

Extended Learning-Activities and Projects

1. Make your own cactus garden by collecting pieces cut from different kinds of cacti. Grow the variety in one single flat container or inseparate pots.

2. Visit a fruit market and collect as many local fruits as possible. If many fruits are not available, you can collect tomatoes and cucumbers (theseare fruits, though we use them as vegetables). Make drawings of the different fruits. Split the fruits and examine the seeds within. Look for any special characteristics in the fruits and their seeds. If possible visit the website:

www.saps.plantsci.cam.ac.uk/fscfruit/dispersal.pdf
You can visit a library also to learn about this.

3. Think of ten different fruit-bearing plants. Remember that many vegetables are also fruits of the plants. Discuss with your teacher, parents, farmers, fruit growers and agricultural experts (if available nearby) and find out the manner of their dispersal. Present your data in the form of a table as shown below:

Solution to this Project.

Sr No	Name of Fruit-bearing plant.	Agent through which seeds are disbursed.	Part of or seed which helps in disbursal.
1.	Drumstick	Wind	Wings of seed
2.	Coconut	Water	Fibrous outer covering of the fruit.
3.	Mango	Animals	Fleshy part of fruit.
4.	Guava	Animals	Fleshy part of fruit.
5.	Rubber Fruit	Wind	By sudden blow of Shell of the seed.
6.	Ladies Finger	Wind	By sudden blow of Shell of the seed.
7.	Begger Ticks	Animals or Human	Fruits with tiny hooks that readly cling to the fur or cloths.
8.	Amla	Animals	Fleshy part of fruit.
9.	Papaya	Animals	Fleshy part of fruit.
10.	Arecanut	Water	Fibrous outer covering of the fruit.

4. Suppose there is one member of a particular kind of organism in a culture dish, which doubles itself in one hour through asexual reproduction. Work out the number of members of that kind of organism which will be present in the culture dish after ten hours. Such a colony of individuals arising from one parent is called a "clone". You can read more on the following website:

www.edumedia-sciences.com/a437_l2-blog-call.html