Transport in Plants — BIOLOGY STD 11 Science — Question

To make the henna bushes denser. The gardener cuts off the tops of their branches, why?

Which is the most highly evolved gymnosperm? What are its features?

Akhil, a class XI student is very casual regarding his studies. One day, his classes were suppose to commence from 8:00 AM. But he left his home at 7:45 AM. He started running on his way, but after 400-500m, he felt a severe cramp in his leg. Due to this cramp, he had to stop and he missed his morning class.

1. What is the reason of the muscle cramp?
2. How could one get rid off the cramp?
3. Name the oxygen carrying pigment of muscles.
4. What values are displayed by Akhil?

In Amoeba and Paramecium osmoregulation occurs through:

1. Pseudopodia.
2. Contractile vacuole.
3. General surface.
4. Nucleus.

Differentiate between oxyhaemoglobin and carbaminohaemoglobin.

A gardener forgot to water a potted plant for a day during summer, what will happen to the plant? Do you think it is reversible? If yes, how?

Ascaris larva is called:

1. Cysticercus.
2. Rhabditiform.
3. Hexacanth.
4. Onchosphere.

In which of the following animal, post-anal tail is found?

1. Earthworm.
2. Lower invertebrate.
3. Scorpion.
4. Snake.

Osmosis is a special kind of diffusion, in which water diffuses across the cell membrane. The rate and direction of osmosis depends upon both ______________

Define oxygenation