Transport in Plants — BIOLOGY STD 11 Science — Question

Analyse the events during every stage of cell cycle and notice how the following two parameters change. Amount of DNA content (C) per cell 2018.

Name the three basic tissue systems in the flowering plants. Give the tissue names under each system.

Rashi was complaining about the pain in her legs since monday. Her father decided to took her to the doctor where they came to know that it was nothing, but the deficiency of calcium from which Rashi was suffering. Rashi got confused and instantly asked doctor that her teacher had taught her that the deficiency of calcium occurs in plants which causes twisting and deterioration of tissues. Doctor patiently explained her that calcium as a mineral is important for the growth of both plants and animals including human beings. Read the passage above and answer the questions that follows,

1. Which type of element is calcium?
2. Mention the region where requirement of calcium is maximum in plants?
3. What other deficiency symptoms does calcium show in plants. Also give two major functions of calcium in plants?
4. What value does the character of Rashi imparts.

Name the two groups of nephrons on the basis of their position in the kidney. How are they different from each other?

Mention breifly about the circulatory system of earthworm.

Write an account on skeleton of sponges.

What is the vascular tissue system? Draw a labelled diagram of the radial and conjoint open vascular bundle.

Differentiate between Blatta orientalis (oriental cockroach) and Periplanata americana (American cockroach).

Describe in detail the structure of a nephron.

Compare mitral valve and semilunar valve.