Plant Kingdom — BIOLOGY STD 11 Science — Question

RuBisCO is an enzyme that acts both as a carboxylase and oxygenase. Why do you think RuBisCO carries out more carboxylation in C₄ plants?

Angiosperms are the most advanced among plants and show more variety than any other division of plants. Additionally, most of the useful plants for us belong to the division angiosperm. Which of the following lessons can be taken from this? What are the benefits of learning multiple skills in our life?

1. A diverse group of students is always good for academic learning.
2. If a student knows multiple skills, then he is more likely to become relevant for the society.
3. A student with better physical features is likely to be a better student.

Make a simple diagram of a flowering plant and show/ label its different parts.

Write the differences between:
Systole and Diastole.

Which of the following will release more energy on oxidation? Arrange 1 them in ascending order.

1. 1gm of fat.
2. 1gm of protein.
3. 1gm of glucose.
4. 0.5g of protein + 0.5g glucose.

Cross pollination is necessary for bringing variations in plants; while self pollination does not bring variations. Find a similar statement from the following. Explain the benefits of cross pollination of ideas.

1. Inter-caste marriages are good for bringing cross-cultural assimilation; while same-caste marriages are not.
2. Interacting with people of different mindsets can enrich our thought, while sticking to interacting with like-minded people can stunt our mental development.
3. We should respect the feelings of all religions and cultures.

Demonstrate and explain the formation of annual ring in the transverse section of the stem.

Sporozoans are parasitic protozoan protists which lack locomotory organelles atleast in trophozoite stage.

1. Where are they found?
2. What kind of nutrition they have?
3. Do they have nucleus?
4. What is the mode of reproduction?
5. List any four examples of sporozoans.

What are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account?