Long Answer Questions (Write the answers in your
1. Giving examples, differentiate between the following:
(i) Tap root and fibrous root.
(ii) Simple leaf and compound leaf.
(iii) Parallel venation and reticulate venation.
Answers
Answer:Helo mate this your ans to your ques
Question 1:
Give examples of 3 plants that have :
(a) spiny fruits
(b) spiny stem
(c) red flowers
(d) yellow flowers
(e) leaves which close at night
(f) single-seeded fruits
(g) many-seeded fruits
ANSWER:
(a) spiny fruits- jackfruit, breadfruit and custard apple
(b) spiny stem- cactus, acacia and aloe vera
(c) red flowers- rose, hibiscus and carnations
(d) yellow flowers- marigold, sunflower and daffodil
(e) leaves which close at night- acacia, mimosa and albizia
(f) single-seeded fruits- mango, plum, cherries
(g) many-seeded fruits- watermelon
ANSWER:
Observe any one flower and its various parts and describe it in your own words.
ANSWER: Androecium (male reproductive organ) - The androecium consists of whorls of stamen. The stamen consists of the filament (long and slender stalk) and anther (bilobed structure). A typical anther is bilobed, which contains the pollen grains.
2. Gynoecium (female reproductive organ) − Gynoecium represents the female reproductive part made up of carpels. Carpel is made up of:
Style − It connects stigma to the ovary.
Stigma − It acts as a receptacle for the pollen grains.
Ovary − It is the enlarged basal part on which style lies. Each ovary bears one or more ovules attached to cushion-like placenta. After fertilisation, ovules develop into seeds and ovary into fruit.
3. Calyx (accessory organ bearing sepals) − Calyx refers to the sepals.They are green in colour. They protect the plant in bud stage and also attract the insects for pollination.Jowar
Moong
1. It is a type of monocot plant. It is a type of dicot plant.
2. It has fibrous root system. It has tap root system.
3. The leaves of jowar plant show parallel venation. The leaves of moong plant show reticulate venation.
Similarity: Both jowar and moong are annual plants.
b.
Onion Coriander
1. It is a type of monocot plant. It is a type of dicot plant.
2. It is a type of vegetable. It is a type of herb. The leaves of banana are very long and have bifurcations on their edges. Leaves of mango are short in size.
2. It has parallel venation. It has reticulate venation.
Similarity: Both banana and coconut are perrenial plants.
d.
Coconut tree Jowar stalk plant
1. It can grow upto 15 - 23 metres. It can grow upto 2 - 3 metres.
2. Leaves of coconut trees are arranged spirally. Leaves of jowar stalk plants are arranged in opposite manner.
Similarity: Both have fibrous roots.
3. The edible part is a bulb. The edible part is leaf and stem