Photosynthesis in Higher Plants — BIOLOGY STD 11 Science — Question

What is meant by (a) Cytotaxonomy and (b) Chemotaxonomy respectively?

Describe numerical taxonomy.

How do the ribosomes of prokaryotic cells differ from the ribosomes of eukaryotic cells? Also tell what is similar about them?

Explain thrombocytes.

When does the secretion of Adrenocorticotropin take place in the body? What is the purpose of its secretion?

Can we relate metabolism with growth of the body?

Write a brief note on germination of pollen grains.

Differentiate between. Spike and spadix.

Two groups (A and B) of bean plants of similar size and same leaf area were placed in identical conditions. Group A was exposed to light of wavelength 400 450 nm and Group B to light of wavelength of 500-550 nm. Compare the photosynthetic rate of the two groups giving reason.

The vertebral column has four articulation points for the four limbs. This is similar to which of the following? What do you understand by ‘spineless’in the literal sense?

1. A four wheeler has four articulation points for the four wheels.
2. A two wheeler has two articulation points for the two wheels.
3. A snake's vertebral column has no articulation point because it has no limb.