MCQ
Perisperm is:
- ✓Part of endospermpart.
- BRemnant of embryo.
- CPersistant nucellus.
- DRemnant of endosperm.
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$II.$ $\alpha$-amylase production is barley grain
$III.$ Acceleration of fruit ripening in tomato
$IV.$ Delayed in sprouting in potato tubers
From the given effects find out the effects of ethylene and choose the correct option accordingly
$(I)$ $RBCs$ are formed in the white bone marrow in adults.
$(II)$ $RBCs$ have red colour because presence of protein called haemoglobin.
$(III)$ Nucleus is present in $RBC$ in most of the mammals and are biconcave in shape.
$(IV)$ A healthy individual has $12 -16\, gms$ of haemoglobin in every $1000\, ml$ of blood.
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Column $I$ $(Function)$ |
Column $II$ $(Part of Excretory System)$ |
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$(a)$ Ultrafiltration |
$(i)$ Henle’s loop |
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$(b)$ Concentration of urine |
$(ii)$ Ureter |
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$(c)$ Transport of urine |
$(iii)$ Urinary bladder |
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$(d)$Storage of urine |
$(iv)$ Malpighian corpuscle |
|
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$(v)$Proximal convoluted tubule |