MODEL PAPER 10 — BIOLOGY STD 11 Science — Question

Amrita and her mother planted small seedling of plant in the soil in their garden. After few months, while playing with her friends Amrita observed that the seedlings which they planted had grown into a mature and flourishing plant. Amrita was curious to know this and asked her mother about this.

1. Name the process that causes growth in living organisms.
2. Discuss about the process that how growth occurs in living organisms.
3. Analyse and write about the common sites of mitosis in plants as well as in animals.
4. What values were shown by Smita?

What are the three methods of locomotion shown by the protozoans? Mention them with an example of each.

Distinguish between:
Cardiac muscle and striated muscle.

What are the criteria used to classify fungi?

Differentiate between the abdomen of a male cockroach and that of a female cockroach.

Can there be DNA replication without cell division?

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?

How the arrangement of vascular bundles in monocots differs from dicots?

What is the significance of juxtaglomerular apparatus (JGA) in kidney function?

Distinguish between the following:
Stele and vascular bundle.