Tag: lipids

Questions Related to lipids

Oxysome is composed of 

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

  1. Lipid $+$ carbohydrates

  2. Lipid $+$ Protein

  3. Carbohydrates

  4. Protein

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Correct Option: D

Components, present in acid insoluble pool are?

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

  1. Protein, nucleic acid, polysaccharide

  2. Protein, lipid, monosaccharide

  3. Protein, nucleic acid, amino acid

  4. Lipid, amino acid

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Correct Option: A

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.

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

  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

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Correct Option: A

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

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

  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

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Correct Option: A
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.

Major requirement of protein in the body is for

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

  1. Energy

  2. Growth

  3. Repair

  4. Proper nourishment

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Correct Option: B,C
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.

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

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

  1. Chromophores

  2. Chlorophores

  3. Xanthophores

  4. Both B and C

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Correct Option: A

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

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

  1. DNA, RNA, AMP, ADP, ATP

  2. DNA, RNA, ATP, ADP, AMP

  3. AMP, ADP, ATP, RNA, DNA

  4. AMP, ATP, ADP, DNA, RNA

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Correct Option: A

Which of the following is biomolecule but not true polymer?

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

  1. Lipid

  2. cellulose

  3. Nucleic acids

  4. amino acids

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Correct Option: A
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'
                                                                                                                   

The term lipid was given by

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

  1. Sutherland

  2. Bloor

  3. Altmann

  4. Berzelius

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Correct Option: B
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.

Hydrolysis of lipid yields

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

  1. Fats

  2. Fatty acids and glycerol

  3. Mannose and glycerol

  4. Maltose and fatty acid

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Correct Option: B
Explanation:

Most common lipids are triglycerides of glycerol and fatty acids. During digestion of lipids they are broken down into constituent fatty acids and glycerols by the action of lipase enzymes.