Tag: evs

Questions Related to evs

What is formed from cellulose waste?

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. Protein

  2. Calcium

  3. Phosphorous

  4. Nitrates

Show answer
Correct Option: A

Cellulose is a protein.

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. True

  2. False

Show answer
Correct Option: B
Explanation:

Cellulose is a polysaccharide consisting of linear chain of numerous linked D-glucose units whereas proteins are formed of number of amino acids linked together by peptide linkage.

Main difference between brown fat and white fat is that the cells of brown fat

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. Are multicoloured

  2. Have more mitochondria

  3. Are polygonal in shape

  4. All the above

Show answer
Correct Option: B

The most abundant lipid in the cell membrane is:-

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. Cutin

  2. Phospholipid

  3. Glycolipid

  4. steroid

Show answer
Correct Option: B
Explanation:
  • The most abundant lipid present in the cell membrane is phospholipids.
  • The cell membrane is called lipid bilayer as it is a double layer membrane made up of phospholipids. 
  • Phospholipids consist of a polar head group and non-polar fatty acid tails. 
  • The arrangement of these phospholipids in the cell membrane makes the cell membrane permeable.
  • The correct answer is OPTION B.

Quasi-fluid nature of membrane is due to

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. Phospholipid

  2. Integral protein

  3. Peripheral protein

  4. Sugar moiety

Show answer
Correct Option: A
Explanation:

The presence of Quasi-fluid nature of cell membrane is due to Phospholipids such as cholesterol moieties that impart fluidity.

It allows lateral movement of protein moieties throughout the lipid bilayer.
So, the correct option is 'Phospholipid'.

A pound of butter contains more usable energy than a
pound of sugar for a human because

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. Sugar contains much more water than butter

  2. A fat molecule has more carbon-hydrogen bonds than a

    sugar molecule

  3. The butter is an animal product, where as the sugar is a

    Plant Product

  4. There is much more waste in digestion and absorption

    of sugar than of butter

Show answer
Correct Option: B
Explanation:

A pound of butter contains more usable energy than a pound of sugar for a human because a fat molecule has more carbon-hydrogen bonds than a sugar molecule. Butter contains fat molecules and sugar contains carbohydrates. Fat molecule have low ratio of oxygen and hydrogen comparison to carbohydrates and they have more carbon-hydrogen bonds than carbohydrates.

Which of the following statements is not correct?

evs weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate atmosphere and its components

  1. The length of human hair changes as the relative humidity changes.

  2. During the winter, low relative humidity can irritate the mucus membranes in the nose and throat.

  3. The relative humidity is a measure of the air's actual water vapor content.

  4. A change in the air temperature can change the relative humidity.

Show answer
Correct Option: C

The relative humidity is often near 100 percent in the Polar Regions.

evs weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate atmosphere and its components

  1. True

  2. False

Show answer
Correct Option: A

If the air temperature increased, with no addition or removal of water vapor, the actual vapor pressure would:

evs weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate atmosphere and its components

  1. Increase

  2. Decrease

  3. Stay the same

  4. Become greater than the saturation vapor pressure

Show answer
Correct Option: C

The unit of pressure most commonly found on a surface weather map is:

evs weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate atmosphere and its components

  1. Inches of mercury (Hg)

  2. Millibars or hectopascals

  3. Pounds per square inch

  4. Millimeters of mercury (Hg)

Show answer
Correct Option: B