The cell membrane<span> is selectively permeable to ions and organic molecules and controls the movement of substances in and out of </span>cells<span>.</span>
Scientists<span> are people who use research and experiments to learn more about the natural world. </span>Scientists<span> use scientific methods to derive knowledge systematically, performing experiments over and over to ensure that their conclusions are valid and accurate.</span>
Answer:
Benedict's test which is meant to detect non-reducing sugar like sucrose from reducing sugars like glucose, fructose or galactose can be used to identify sucrose.
Explanation:
Glucose, fructose and galactose are reducing sugars so they can easily be identified against non-reducing like sucrose. A reducing sugar is a kind of sugar which has a free aldehyde or ketone group. Free aldehyde and ketone groups act as a reducing agent and they are capable of reducing other substances. In this situation, the reducing sugar reduces other substances and themselves get oxidized. In contrast to this, a non-reducing sugar can not act as a reducing agent because it has lack of a free aldehyde or ketone group.
Benedict's test is a test which is used to identify a non reducing sugar from reducing sugars. In this test, a reducing sugar (Glucose, fructose or galactose) is heated with Benedict's solution which leads to the change of color of solution to orange-red/ brick red. But no such color change will be detected if sucrose is heated with Benedict's solution.
Function to produce force and motion. They are primarily responsible for maintaining, changing posture, locomotion. Also movement of internal organs, such as the contraction of the heart and the movement of food through the digestive system.
Answer:
Viruses do not belong in any kingdom, for they are unique organisms Viruses also lack organelles, cannot respire, and cannot conduct metabolic functions. Bacteria fall under a Domain, perform metabolic functions, and have DNA, just like viruses do.
Explanation:
Viruses & Bacteria have DNA, Viruses do not have organelles or ability to perform metabolic functions.