Question

Q#:3,4,68,69,73,76,92 and 94

3) You plant a seed in a pot with soil, add water, and then place it in the sunlight in a closed chamber. Before the seedling emerges from the soil, carbon dioxide levels increase in the closed chamber. This indicates that is occurring. A) cellular respiration B) alcohol fermentation C) sucrose production D) fertilization E) photosynthesis

Answer 1

3a. Cellular respiration

Carbon dioxide increases as CO2 is given out and oxygen is taken in during the process of respiration.

4d. Casparian strips

Casparian strips are regions of the cell wall that are impregnated with waxy materials, which renders the cell walls hydrophobic.

68c. From the roots through the soil

Soil contains all them minerals like nitrogen and phosphorus and plants take them from the absorption through their roots.

69c. It is necessary for sexual reproduction

Pollen grains act as the male gametes which move on to the stigma of the female part and through their styles make entry into the female ovary and there they fertilize with the egg cell.

73. Diploid, haploid

The sporophyte is diploid i.e 2n and gametophyte is haploid i.e. n.

76b. Transpiration

Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers.

92d. Swell, open

If water is abundant a plant's guard cell will swell and stomata will open. Stomata open when guard cells swell due to decreased water potential.

94a. Consumers.