The answer is option A.
The Student identifies the test tube
that stops bubbling first contains the catalyst.
Because Catalyst is a substance which
increases the rate of reaction, and the reaction shows that when a product is
obtained bubbles formed.
<span>When the student added X, Y and Z to the
test tubes. The one which is a catalyst fastened the reaction.</span>
The answer is A) emulsified by bile salts
<span>In order for the fat to be digested, the fat globules must be emulsified first by bile salts in the stomach. By emulsifying we mean the breaking of globules of fat into much smaller emulsion droplets. The liver produces the bile salts which breakdowns fats into small droplets. The fat then is digested by lipase. </span>
Answer:
it stresses secrecy in scientic investigations
