Given below are two statements:
$Statement I$: The cardiac sphincter prevents regurgitation of food from the stomach to the duodenum.
$Statement II$: The pyloric sphincter regulates the flow of food from the oesophagus to the stomach.
In the light of the above two statements, choose the most appropriate answer from the options given below.

  • A
    Both $Statement I$ and $Statement II$ are correct.
  • B
    Both $Statement I$ and $Statement II$ are incorrect.
  • C
    $Statement I$ is correct but $Statement II$ is incorrect.
  • D
    $Statement I$ is incorrect but $Statement II$ is correct.

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Give scientific reasons:
$(1)$ Food tastes sweet after chewing.
$(2)$ Excretory substances are seen in bile juice.

Assertion : Water and electrolytes are almost fully absorbed in the large intestine.
Reason : In large intestine,haustral contractions (slow segmenting movements) roll the forming faeces over and over,causing absorption of water and electrolytes.

Match the following and choose the correct combination from the options given:
Column-$I$ Column-$II$
$(A)$ Ptyalin $(1)$ Lipids
$(B)$ Pepsin $(2)$ Starch
$(C)$ Steapsin $(3)$ $DNA$
$(D)$ Nuclease $(4)$ Proteins

If the pancreas is removed,the compounds that remain undigested are

Match Column $I$ with Column $II$ and select the correct option.
Column $I$ (Part of the alimentary canal)Column $II$ (Shape)
$i$. Duodenum$a$. Worm-like
$ii$. Stomach$b$. $U$-shaped
$iii$. Tongue$c$. $J$-shaped
$iv$. Appendix$d$. Triangular

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