MCQ
Pineal body originates from
- ✓Dorsal part of diencephalon
- BVentral part of diencephalon
- CVentral part of cerebellum
- DDorsal part of cerebellum
✓
Answer
Correct option: A.
Dorsal part of diencephalon
a
(a) Pineal gland is an endocrine organ, it is located on the roof of diencephalon.
(a) Pineal gland is an endocrine organ, it is located on the roof of diencephalon.
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The substance that accelerates the elongation in the stem is:
Cycas stem shows:
Which of the following is required for transformation of oxaloacetic acid into malic acid
Assertion : In the descending limb of loop of Henle, the urine is hypertonic, whereas in ascending limb of loop of Henle, the urine is hypotonic.
Reason : Descending limb is impermeable to sodium, while ascending limb is impermeable to water.
Reason : Descending limb is impermeable to sodium, while ascending limb is impermeable to water.
End product of citric acid$/$Krebs cycle is:
→Identify correct option:
→|
|
Renal vein |
Pulmonary artery |
Hepatic portal vein |
Main Aortic arch |
|
$(a)$ |
$PO_2 =$ $95\, mm\,Hg$ $PCO_2 =$ $40 \,mm\,Hg$ |
Less concentration of ions in blood |
More fatty acid and glycerol in the blood |
$PO_2 =$ $95\, mm\,Hg$ $PCO_2 =$ $40 \,mm\,Hg$ |
|
$(b)$ |
Blood $pH = 7.4$ |
Less excretory substances than other blood vessels |
More nutritive substances |
More oxygen than pulmomary artery |
|
$(c)$ |
Less excretory wastes |
$PO_2 =$ $40\, mm\,Hg$ $PCO_2 =$ $45 \,mm\,Hg$ |
Less amount of fatty acid and glycerol compare to other blood vessels |
More excretory substances than renal vein |
|
$(d)$ |
More oxygen than pulmonary artery |
More excretory waste than renal vein |
$PO_2 = $ $95\, mm\,Hg$ $PCO_2 =$ $ 40 \,mm\,Hg$ |
Less excretory waste than hepatic portal vein |
$I.$ Increased vacuolation
→$II.$ Cell enlargement
$III.$ New cell wall deposition
Which of the above are the characteristics of phase of elongation?
Choose the correct option accordingly
Sapindales is a
Identify the following diagram
