Biology Practice: Seed Structure and Germination (Mock Test 4 - Expert/Experimental Logic)
1. In a laboratory experiment, seeds are placed in a flask with moist cotton and a test tube containing $KOH$. The level of colored water in the delivery tube rises. This proves:
2. In the "Three-Bean Experiment", why does the bean at the bottom of the beaker fail to germinate properly?
3. A student boils seeds and then places them in a germination setup. No growth is observed. This is because:
4. To demonstrate that "Heat is evolved during germination", which of the following is an essential clinical precaution?
5. If the chromosomal number of a leaf cell in a bean plant is 22, what is the chromosomal number in its endosperm (if present during development)?
6. A clinostat is used in botanical experiments primarily to:
7. Why do we use "Pyrogallic acid" in experiments related to seed germination?
8. In a data-based study, seeds germinated at 35°C showed faster growth than at 15°C. This is because:
9. "Scutellum" is to Monocots as ______ is to Dicots.
10. What would happen if the Micropyle of a dry seed was blocked with wax before sowing?
11. In the germination of Maize, the "Coleorhiza" is the first structure to pierce the grain wall. Its role is:
12. Which of the following describes the correct sequence of logic in the "Seed Respiration" experiment?
13. A seed that requires a period of low temperature before it can germinate is exhibiting:
14. Why is a control setup (using dead/boiled seeds) necessary in biological experiments?
15. In "Epigeal" germination, the hypocotyl grows actively. In "Hypogeal", the ______ grows actively.
16. The "Seed Coat" of a monocot grain is often referred to as being fused with the pericarp. This fusion creates a:
17. Which observation confirms that germination has officially started?
18. The energy required for the initial stages of germination comes from:
19. In a "Viviparous" plant, the seedling falls vertically into the mud. What prevents it from being washed away?
20. Which of the following best describes "Albuminous" seeds?
