MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Scale leaves are present in ______ |
| A. | Cactus |
| B. | Potato |
| C. | Cucumber |
| D. | Tomato |
| Answer» C. Cucumber | |
| 2. |
Spines in cactus are due to _______ |
| A. | modifications of leaves |
| B. | modifications of stem |
| C. | modifications of flower |
| D. | modifications of bud |
| Answer» B. modifications of stem | |
| 3. |
Which among the following is incorrect about phyllotaxy? |
| A. | The arrangement of leaves in the plant is called phyllotaxy |
| B. | In alternate phyllotaxy, a single leaf is present at each node |
| C. | Opposite phyllotaxy is present in China rose |
| D. | In whorled phyllotaxy, multiple leaves are present at each node |
| Answer» D. In whorled phyllotaxy, multiple leaves are present at each node | |
| 4. |
Which among the following statements is incorrect about leaves? |
| A. | Simple leaves are those leaves that are either entire or incised without touching the mid-rib |
| B. | Compound leaves are those leaves in which incisions reach the mid-rib breaking the lamina into leaflets called as ‘pinnate’ |
| C. | In palmate compound leaves, leaflets are attached at a common point |
| D. | An axillary bud is present at the end of every leaflet |
| Answer» E. | |
| 5. |
Which among the following is incorrect about reticulate and parallel venation? |
| A. | In reticulate venation, veins are arranged haphazardly |
| B. | In parallel venation, veins are arranged in a parallel manner |
| C. | In palmate venation, only one strong mid-rib is present |
| D. | Rice is an example of convergent palmate parallel venation |
| Answer» D. Rice is an example of convergent palmate parallel venation | |
| 6. |
In China rose, the mid-ribs converge at the tip. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Which among the following is not correct about leaf? |
| A. | Stipules are the leaf like structure that grows on the leaf base |
| B. | The margin of the lamina can be entire, wavy or notched and the tip of the lamina can be round, acute or obtuse |
| C. | The arrangement of veins and veinlets in the leaf is called venation and veins are the vascular tissues of leaves |
| D. | In pinnate reticulate, there are many strong ribs and these ribs can be either convergent or divergent |
| Answer» E. | |
| 8. |
Which among the following is incorrect about different parts of the leaf? |
| A. | Lamina contains veins and veinlets that transmit water to different regions of the leaf |
| B. | Petiole is flexible thin structure that helps in fluttering of leaves in the air |
| C. | Grass is an example of petiolate plants |
| D. | Legumes have a swollen leaf base called Pulvinus |
| Answer» E. | |
| 9. |
Which among the following is correct about the following structure? |
| A. | a-Petiole; b-Lamina; c-Leaf base |
| B. | a-Leaf base; b-Lamina; c-Petiole |
| C. | a-Petiole; b-Leaf base; c-Lamina |
| D. | a-Petiole; b-Leaf base; c–Leaf blade |
| Answer» B. a-Leaf base; b-Lamina; c-Petiole | |
| 10. |
Green, lateral, flattened structure borne on stem nodes and essential to perform photosynthesis is called a leaf. |
| A. | True |
| B. | False |
| Answer» B. False | |