Tag: lipids

Quizzes (3) Questions (164)

Questions Related to lipids

Multiple choice biology meaning of life chemical organization in living beings lipids proteins and their structure

Components, present in acid insoluble pool are?

  1. Protein, nucleic acid, polysaccharide

  2. Protein, lipid, monosaccharide

  3. Protein, nucleic acid, amino acid

  4. Lipid, amino acid
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The acid-insoluble pool (retentate) in biochemical analysis contains macromolecules like proteins, nucleic acids, and polysaccharides, which are too large to pass through the filter.

Multiple choice biology meaning of life chemical organization in living beings lipids proteins and their structure

Fill in the blanks by choose the correct option.
A. An antiviral proteins called _______ is released by the ________ infected cells.
B. ______ immunity is also known as inborn immunity.
C. ________ in the stomach prevent microbial growth.
Choose the correct option.

  1. A- interferon, virus; B-Passive; C-Acid

  2. A-interferon, virus; B-Innate; C-Acid

  3. A-antibody, bacteria; B-Active; C-Acid

  4. A-antibody, virus; B-Acquired; C-Hormone
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice biology meaning of life chemical organization in living beings lipids proteins and their structure

Assertion : Proteins are organic components.
Reason : Amino acids are the basic units of proteins formed by hydrolysis.

  1. Assertion and reason both are correct , but reason is not the correct explanation for assertion.

  2. Assertion and reason is correct, reason is correct explanation of assertion

  3. Assertion and reason both are wrong

  4. Assertion is correct but reason if wrong
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Proteins are building blocks of body. They are formed by monomer units i.e amino acids. Many amino acids undergo condensation reaction to form peptide bond.

Multiple choice biology meaning of life chemical organization in living beings lipids proteins and their structure

Major requirement of protein in the body is for

  1. Energy

  2. Growth

  3. Repair

  4. Proper nourishment
Reveal answer Fill a bubble to check yourself
B,C Correct answer
Explanation
The major requirement of protein in the body is for growth and repair.
Protein is a nutrient needed by the human body for growth and maintenance. Aside from water, proteins are the most abundant kind of molecules in the body. Protein can be found in all cells of the body and is the major structural component of all cells in the body, especially muscle. This also includes body organs, hair and skin. Proteins are also used in membranes, such as glycoproteins. When broken down into amino acids, they are used as precursors to nucleic acid, coenzymes, hormones, immune response, cellular repair, and other molecules essential for life. Additionally, protein is needed to form blood cells.
Multiple choice biology meaning of life chemical organization in living beings lipids proteins and their structure

Proteins that helped in trapping solar energy and developed an electric potential across covering membranes of protocells were :

  1. Chromophores

  2. Chlorophores

  3. Xanthophores

  4. Both B and C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chromophores are light-absorbing molecules or proteins that were hypothesized to trap solar energy in early protocells, potentially creating electrical potentials.

Multiple choice biology meaning of life chemical organization in living beings lipids proteins and their structure

In which one of the following combinations, the compounds are arranged in ascending order based on their molecular weights?

  1. DNA, RNA, AMP, ADP, ATP

  2. DNA, RNA, ATP, ADP, AMP

  3. AMP, ADP, ATP, RNA, DNA

  4. AMP, ATP, ADP, DNA, RNA
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Molecular weights increase from AMP (monophosphate) to ADP (diphosphate) to ATP (triphosphate). RNA and DNA are polymers of nucleotides and thus have significantly higher molecular weights than individual nucleotides.

Multiple choice biology meaning of life chemical organization in living beings lipids proteins and their structure

Which of the following is biomolecule but not true polymer?

  1. Lipid

  2. cellulose

  3. Nucleic acids

  4. amino acids
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lipid is not a true polymer as it contains a distinct functional group at one end in addition to repeated units of Hydrocarbons. So, the growth of the polymer takes place only in one direction, which does not  occur in case of polymers. 

So, the correct answer is 'Lipid'
                                                                                                                   

Multiple choice biology meaning of life chemical organization in living beings lipids proteins and their structure

The term lipid was given by

  1. Sutherland

  2. Bloor

  3. Altmann

  4. Berzelius
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Lipids are fatty acids esters of alcohols. They are insoluble in water but get dissolved in an inorganic solvent like acetone, chloroform ether etc. lipid was termed by Bloor in 1943. Altman discovered mitochondria. Berzelius discovered chemical elements selenium, throium, cerium and silicon and Sutherland discovers the epinephrine. Thus, the correct option is B.