Q. No.Roots arising from the parts of a plant other than radical are called as:
1. Tap root
2. Fibrous roots
3. Adventitious roots
4. Lateral roots
In a flower, if the gynoecium occupies the highest position, the flower is said to be:
| 1. | Superior | 2. | Inferior |
| 3. | Hypogynous | 4. | Epigynous |
What is not true for a stem in a flowering plant in general?
| 1. | Negatively geotropic |
| 2. | Develops from plumule of the germinating embryo |
| 3. | Absence of terminal and axillary buds |
| 4. | Spreads out branches bearing leaves, flowers and fruits |
Stem tendrils are present in all the following except:
| 1. Citrus | 2. Watermelon |
| 3. Cucumber | 4. Grapevines |
Match each item in Column I regarding structure of a dicotyledonous seed with description in Column II and select the correct option from the codes given below:
|
|
Column I |
|
Column II |
|
A. |
Testa |
a. |
Outer layer of seed coat |
|
B. |
Tegmen |
b. |
Inner layer of seed coat |
|
C. |
Hilum |
c. |
Scar on seed coat through which the developing seeds were attached to the fruit |
|
D. |
Micropyle |
d. |
Small pore through which pollen tube penetrates |
Codes
| A | B | C | D | |
| 1. | a | b | c | d |
| 2. | b | a | c | d |
| 3. | b | a | d | c |
| 4. | a | b | d | c |
Stems contain chlorophyll and carry out photosynthesis in:
| 1. Opuntia and Euphorbia | 2. Mint and Jasmine |
| 3. Pistia and Eichhornia | 4. Banana and Pineapple |
A lateral branch arises from the base of the main axis and after growing aerially for some time arches downwards to touch the ground in:
| 1. Opuntia and Euphorbia | 2. Mint and Jasmine |
| 3. Pistia and Eichhornia | 4. Banana and Pineapple |
Root hairs at the root tip are formed by:
| 1. | Epidermal cells in the region of maturation |
| 2. | Cortical cells in the region of elongation |
| 3. | Epidermal cells in the region of elongation |
| 4. | Cortical cells in the region of maturation |
In mango, the fruit is:
| 1. | drupe and mesocarp is fleshy and edible |
| 2. | drupe and mesocarp is fibrous |
| 3. | berry and mesocarp is fleshy and edible |
| 4. | berry and mesocarp is fibrous |
When sepals or petals in a whorl just touch one another at the margin, without overlapping, the aestivation is said to be:
| 1. | Valvate | 2. | Twisted |
| 3. | Imbricate | 4. | Vexillary |
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