STD 11 - 8. Cell the unit of life — NEET STD 11 Science — Question

Chromosome start separating at which stage of mitosis

Which of the following biomolecules is common to respiration­mediated breakdown of fats, carbohydrates and proteins?

Assertion: The members of phacophyceae vary in colour from olive green to various shades of brown.
Reason: Colour depending upon the amount of laminarin or mannitol present in it.

In Pinus male and female reproductive structures occur

Fill in the blanks and choose the correct option given below.
(i) The basidiospores are A produced on the basidium.
(ii) B are commonly known as imperfect fungi because only the asexual or vegetative phases of these fungi are known.
(iii) The deuteromycetes reproduce only by C spores known as conidia.
(iv) D and E shows dikaryon stage.
(v) F and G are examples of insectivorous plants and Cuscuta is a parasite.
(vi) The viruses are H organism that are characterized by having an inert crystalline structure outside the living cell.
(vii) The name virus that means venom or poisonous fluid was given by Pasteur. I showed that viruses could be crystallized and crystals consist largely of proteins.
(viii) Viruses are J parasites.
(ix) In general, viruses that infect plants have K and viruses that infect animals have either single or double stranded RNA or double stranded DNA.
(x) Bacterial viruses or bactriophages are usually L virus.
(xi) Viroids are smaller than viruses and caused M
(xii) The algal component is known as N and fungal component as mycobiont in lichens.

Which of the following is the bye-product of photosynthesis

Find incorrect match:

The meristem of root is

The pyramid of energy is the best representation of an ecosystem because it indicates

What is camouflage