PART - 2 - Unit IV : CH - 12 Respiration in Plants — BIOLOGY STD 11 Science — Question

Describe the reproductive system of a female frog by drawing a diagram.

Bring out five differences between Annelida and Arthropoda. Name the blood-sucking ectoparasite of Annelida.

Explain in detail the regulation of kidney functions.

Enumerate the assumptions that we have undertaken in making the respiratory balance sheet. Are these assumptions valid for a living system?

Gametophyte is a dominant phase in the life cycle of a bryophyte. Explain.

Manish while performing a practical in laboratory on Grams stain observed that one type of bacteria stained dark blue or purple in colour, while the other type of bacteria did not retain the crystal violet dye even after staining again and again. Instead it keeps on loosing the dye on washing. He rushed to his teacher for showing the specimen.

His teacher explained that there is nothing to get worried about. As different kinds ofbacteria are found.

1. What is the basis of classifying bacteria.
2. What is the basic difference between Gram positive and Gram negative bacteria.
3. Name one Gram positive and one Gram negative bacteria.
4. What values are shown by Manish's teacher?

Describe the cross section of an isobilateral leaf by making a labeled diagram.

Mention any five hormones secreted by anterior pituitary and mention their functions.

In the figure given below, the black line (upper) indicates action spectrum for photosynthesis and the lighter line (lower) indicates the absorption spectrum of chlorophyll a, answer the following:

1. What does the action spectrum indicate? How can we plot an action spectrum? Explain with an example.
2. How can we derive an absorption spectrum for any substance?
3. If chlorophyll a is responsible for light reaction of photosynthesis, why do the action spectrum and absorption spectrum not overlap?

What is the relationship between germinal layers and the formation of body cavity in case of coelomate, acoelomates and pseudocoelomates?