Plant Kingdom — BIOLOGY STD 11 Science — Question

Differentiate between.
Stamen and staminoid.

Give the name of a fungus used in biological control of other fungi. How is it harmful to humans?

Give the correct matching of causative agent/ germ and disease:

1. Anopheles—malaria.
2. Leishmania—sleeping sickness.
3. Glossina—kala-azar.
4. Wuchereria—filariasis.

Who developed the staining procedure to stain the bacterial cells? Mention the two categories of bacteria based on that and differentiate between them.

Comment on the statement – Respiration is an energy producing process but ATP is being used in some steps of the process.

Cell membrane is semi-permeable in nature and thus allows passage to selected substances through it. Which of the following can be learnt from this property of the cell membrane? What are the benefits of selectively learning or adapting certain things for us?

1. We should only eat selected food.
2. We should follow good behaviour only and avoid bad behavior.
3. We should pay respect to selected persons only.

Differentiate between vascular tissues of gymnosperms and angiosperms.

What will happen if the stretch receptors of the urinary bladder wall are totally removed? Explain.

Body cavity is the cavity present between body wall and gut wall. In some animals the body cavity is not lined by mesoderm. Such animals are called.

1. Acoelomates.
2. Pseudocoelomates.
3. Coelomates.
4. Haemocoelomates.

How important is the presence of air bladder in Pisces?