STD 11 - 11. photosynthesis in higher plants — NEET STD 11 Science — Question

Phenomenon of crossing over in diploid organisms is responsible for

Mark the given statements True (T) or False (F).
(i) All the carbon compounds that we get from living tissues can be called as biomolecules.
(ii) In amino acid, all the substituent are on the different a carbon and hence they are called as a-amino acid.
(iii) The R-group is hydrogen in glycine; methyl group in alanine amino acid; and hydroxy ethyl group in serine.
(iv) Palmitic acid has 16 carbon atoms including carboxy carbon and arachidonic acid has 20 carbon atoms including carboxy carbon.
(v) Simple lipid glycerol is actually dihydroxy propane.
(vi) Fatty acids are called as fats and oils based on melting point.
(vii) Saturated fats have lower melting point and hence remain as oil in winters.
(viii) Lecithin is one of phospholipid present in the cell membrane.
(ix) When nitrogenous bases are attached to a sugar they are called Nucleoside. When phosphate group also gets attached it is called nucleotides.
(x) The molecular weight of all compound found in acid insoluble pool ranges from 18 to 800 daltons approximately.
(xi) The compound in acid soluble fraction except lipids has molecular weight above 10000Da. And these compounds are called biomacromolecules.
(xii) Each protein is made up of amino acids. As there are 20 types of amino acid, protein is hetero polymer.
Choose the correct option given below :-

The process of growth is determined by

Which of the following is a flagellated alga

Assertion : Endosperm is a nutritive tissue and it is triploid.
Reason: Endosperm is formed by fusion of secondary nucleus to second male gamete. It is used by developing embryo

Seedless fruits in Vitis are formed due to

Which of the following is not true for nutrition in Amoeba