Biology · General Awareness

Vitamins and Nutrition

1,711 Questions

Review essential concepts of human nutrition, focusing on macro and micronutrients. The questions cover vitamin deficiencies, sources, and their physiological roles such as blood clotting and vision. This material is highly relevant for the general science section of various government exams.

Vitamin sources and functionsMacronutrients for energyBlood coagulation vitaminsDeficiency diseasesNutrient absorption mechanisms

Vitamins and Nutrition Questions

Multiple choice

Food is...

  1. Something that provides you energy

  2. Vitamins and minerals

  3. The cause of a chemical reaction

  4. Breakdown molecules
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Food provides the chemical energy necessary for organisms to perform biological functions. While food contains vitamins and minerals, those are nutrients rather than the definition of food itself.

Multiple choice

The respiratory pigment in human beings is:

  1. carotene

  2. chlorophyll

  3. haemoglobin

  4. mitochondria
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Haemoglobin is the iron-containing protein in red blood cells that binds to oxygen and transports it throughout the human body.

Multiple choice

Small doses of ultraviolet light may help the body produce?

  1. melanin

  2. vitamin D

  3. sebum

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

Exposure to small, controlled doses of ultraviolet light stimulates the skin to produce Vitamin D. It is not responsible for melanin production (which is a response to damage) or sebum.

Multiple choice

A nutrient is

  1. a vitamin

  2. any food taken in by the cell

  3. any chemical required for growth

  4. not necessary for bacteria

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A nutrient is defined as any chemical substance that an organism must acquire from its environment to sustain life and support growth. This includes elements, ions, and complex molecules.

Multiple choice

LAB increases _______ while converting milk to curd

  1. Vitamin B12

  2. Vitamin D

  3. Lactic acid

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

Lactic Acid Bacteria (LAB) improve the nutritional quality of milk by increasing the content of Vitamin B12 during the fermentation process to produce curd.

Multiple choice

VitaminB2 is obtained from _______.

  1. Penicillium notatum

  2. Acetobacter aceti

  3. Aspergillus niger

  4. Ashbya gossypii
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The fungus Ashbya gossypii is industrially used for the commercial production of Vitamin B2 (riboflavin) through fermentation.

Multiple choice bio-chemistry from tasting to digestion types of ecological pyramids the muscular system and digestive system in human beings introduction to human digestive system

Which reserve food is consumed by man during starvation:

  1. Fat

  2. Protein

  3. Glycogen

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

Starvation is defined as a severe deficiency in calorie energy intake needed to maintain human life.

During first stage of starvation, glucose levels are maintained through production of glucose from proteins, glycogen and fats.Then body burns fats first exhusting contents of digestive tract along with glycogen resetrves stored in liver cells.

Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Vitamin which is most likely to become deficient in alcoholics is

  1. Ascorbic acid

  2. Thiamine

  3. Niacin

  4. Riboflavin
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Alcoholic persons are dependent on consuming alcohol and there is irresistible craving for drinking alcohol. Alcohol has many serious impacts on health. Alcoholic persons suffer from anaemia. They are deficient in vitamins folic acid and thiamine (vitamin B6). Studies have shown that the deficiency of thiamine is responsible for the craving of alcohol.
So, the correct answer is 'Thiamine'.
Multiple choice

What is the most essential nutrient in animal feeding animals and maintaining health?

  1. Water

  2. Protein

  3. Vitamins

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

Water is the most essential nutrient for animal survival and health. Cattle can survive weeks without food but only days without water. Water is required for all physiological processes: digestion, nutrient transport, temperature regulation, waste removal, and milk production (milk is ~87% water. While protein, vitamins, and minerals are vital, water is the immediate survival requirement. Option D has a typo spelling 'Minerals' as 'Minerials'.