Morphology of Flowering Plants — BIOLOGY STD 11 Science — Question

Write any four differences between Rennin and Renin.

Distinguish between: Cardiac muscle and striated muscle.

Define respiration. Mention the value of Respiratory Quotient (RQ) for proteins and fats.

What are polysachharides?

Neha was walking in the garden early morning and observed many beautiful flowering plants. She got attracted by the brightly coloured flowers and their beautiful appearance. Neha was curious to know about the variation of colours in flowers and asked her biology teacher about this. Teacher told her about the plastids found in only plant cells.

1. Which plastids are found in flowers and fruits?
2. Which plastids are known as kitchen of the cell?
3. Name the colourless plastids.
4. What values are shown by Neha?

Write short note on ear ossicles.

Describe nitrification along with the equations and the organisms involved in each step.

List out the functions of a museum.

Suppose for some reason ATP falls deficient in nerve fibre, how will it affect the conduction of nerve impulse through it?

Abhay, a police officer, discovered a human pelvis from the jungle. After checking the reports of missing people, he found that a couple had been missing from that area since a month. Abhay was confused as to whom the pelvis belonged to and therefore, took it to the forensic investigator. The forensic expert reported it to be a female pelvis. Afterwards, the DNA from the missing female's mother and pelvis was matched. Since, both the DNA matched. It confirmed that out of the couple, the lady had died.

1. How did the investigator opened it to be a female pelvis?
2. What other bones of human can be used for sex identification?
3. Give a possible reason for the change in female pelvis.
4. What values are shown by Abhay?