NEET Biology class 11 & 12 (SAM)
Biology
Has NEET level + CBSE prep material
Sample Data
| Question! | NAme amino acid derivative hormones |
| The answer! | Thyroxine (T4) and Triiodothyronine (T3)Precursor: Iodinated form of TyrosineEpinephrine (Adrenaline) and Norepinephrine (Noradrenaline)Precursor: TyrosineDopaminePrecursor: TyrosineSerotoninPrecursor: TryptophanMelatoninPrecursor: Tryptophan |
| Question! | Q- Explain about the simple tissue which provides support to growing parts of the plants (shape, walls, functions etc) |
| The answer! |
 Simple Permanent Tissues:
Collenchyma:
Location:
Layers below the epidermis in dicotyledonous plants.
Shape:
Oval, spherical, or polygonal.
Cell Walls:
Thickened at the corners due to deposition of cellulose, hemicellulose,
and pectin.
Intercellular Spaces:
Absent.
Functions:
Mechanical support to growing parts (e.g., young stem,
petiole).
Assimilation of food when containing chloroplasts.Often contain chloroplasts
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| Question! | WHat forms the filtration membrane? Explain about all its components. How much blood is filtered by kidneys per minute? |
| The answer! | Filtration membrane : 3 layersendothelium of glomerular blood vesselsepithelium of Bowman’s capsulebasement membrane b/w these two layers.Podocytesepithelial cells of Bowman’s capsule called podocytesThey're arranged in an intricate manner to leave some minute spaces called filtration slits or slit poresBlood is filtered very finely through this filtration membranesalmost all the constituents of the plasma except proteins pass onto the lumen of the Bowman’s capsuleTherefore, it is considered as a process of ultra filtration |