- ✓Phospholipids
- BGlycerides
- CCarbohydrates
- DAmino acids
Some lipids have phosphorous and a phosphorylated organic compound in them. These are phospholipids. They are found in cell membrane. Lecithin is one example.
Option ($2$) is incorrect as glycerides are another group of lipids in which both glycerol and fatty acids are present.
Option ($3$) and ($4$) are incorrect as carbohydrates and amino acids are separate groups of biomolecules.
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$1 - 2 - 3$
$(a)$ It is also called as the earlywood
$(b)$ In spring season cambium produces xylem elements with narrow vessels
$(c)$ It is lighter in colour
$(d)$ The springwood along with autumnwood shows alternate concentric rings forming annual rings
$(e)$ It has lower density
Choose the correct answer from the options given below:
Plant $→$ Insect $→$ Frog $→$ “$A$” $→$ Eagle