Male gamete in angiosperm is produced by

• generative cell

• microspore cell

• vegetative cell

• tube cell

Vessels and companion cells are found in

• angiosperm

• pteridophytes

• bryophytes

• thallophytes

Which organelle is present in higher number in secretory cells?

• Dictyosome

• ER

• Lysosome

• Vacuole

Number of chromosomes in an angiospermic plant is 14, then the number of chromosomes in synergid cells will be

• 14

• 7

• 28

• 21

Phytochrome is present in

• vascular cryptogam

• prokaryotes

• flowering plants

• algae

Which of the following plant is LDP?

• Xanthium

• Soybean

• Wheat

• Tobacco

Meristematic tissue in vascular bundle is

• phellem

• procambium

• interfascicular cambium

• fascicular cambium

Systema Naturae was written by

• Linnaeus

• Aristotle

• Hippocrates

• Darwin

The mineral present in cell wall is

• Na

• Ca

• K

• Mg

What happened when we inoculated Rhizobium in wheat field?

• No increase in production (nitrogen content of soil remains same)

• A lot of increase in production (nitrogen content of soil increases)

• Fertility of soil decreases

• Fertility of soil increases