Biological Classification — BIOLOGY STD 11 Science — Question

Describe the different stages found in the sexual cycle of fungi.

Respiratory pathway is believed to be a catabolic pathway. However, nature of TCA cycle is amphibolic. Explain.

Amrita's biology teacher taught in biology class that food helps in building the body and alsoprovides us energy to work. However, she was not able to understand the mechanisms involved.
So, she discussed it with his father who is a professor of biology in a college. He answered that in living organisms certain structures, present in the cells and known as power houses of cells, which are responsible for conversion of food into energy.
Read the above passage and answer the following questions.

1. Which cell organelles are known as power house of cell? Why?
2. List major components of mitochondrion.
3. What values are displayed by Amrita's father?

Name the division in which true jaws are absent. Write any four differences between Pisces and Tetrapoda super class.

Explain the difference between Sinu Auricular Node and Auriculo Ventricular Node.

What is the advantage of development of seed habits in seed plants?

Difference between Heartbeat and Pulse.

Write the difference between: Pectoral and Pelvic girdle

A gardener finds some broad-leaved dicot weeds growing in his lawns. What can be done to get rid of the weeds efficiently?

What are the effects of hypothyroidism (observed during pregnancy) on the development and maturation of a growing baby?