How many atoms of $H$ and $O$ are present in one molecule of water,respectively?

$A$ diet rich in butter,red meat,and eggs,when consumed regularly,will lead to:

Categorize the following processes as Anabolic or Catabolic:
$I -$ Protein synthesis,
$II -$ Lactic acid fermentation,
$III -$ Aerobic respiration,
$IV -$ Alcoholic fermentation,
$V -$ Synthesis of cholesterol from acetic acid,
$VI -$ Photosynthesis,
$VII -$ Digestion,
Identify the Anabolic and Catabolic processes respectively.

$A$: Living organisms obtain various molecules and elements from their environment.
$R$: Living organisms synthesize components essential for their body.

Energy currency of the cell is:

How much energy is released by the hydrolysis of a single $ATP$ molecule under standard conditions (in $kcal$)?