Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology organisation of the organism introduction to cell what are the living organisms made of component of the cell

Auxospores are formed by _____________.

  1. Diatoms

  2. Dimities

  3. Deuteromycetes

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

Auxospore. In certain species of diatoms, auxospores are specialised cells that are produced at key stages in their cell cycle or life history.  Auxospores can also play a role in sexual reproduction in diatoms, and may be formed after haploid gametes fuse to form a diploid zygote.

Thus the correct option is A. 

Multiple choice biology organisation of the organism introduction to cell what are the living organisms made of component of the cell

Which of the following is codons codes for proline.

  1. CCC, CCU, CCG

  2. UCC, UGU, CCU

  3. CUG, CUU, CUA

  4. CGC, CGG, CCA
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Proline is encoded by four codons: CCU, CCC, CCA, and CCG. Option A lists three of these four codons correctly. The other options contain codons for different amino acids or incorrect combinations.

Multiple choice biology organisation of the organism introduction to cell what are the living organisms made of component of the cell

Axenic culture is best defined as 

  1. Cell cultures

  2. Cell cultures free from micro-organisms

  3. Cell cultures of insectivorous plants

  4. Cell cultures free from other micro-organisms
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Axenic culture refers to a culture that is free from any other living organisms, meaning it contains only the specific organism being studied.

Multiple choice biology organisation of the organism introduction to cell what are the living organisms made of component of the cell

Secretion, endocytosis, division and formation of intercellular junctions are functions of cells due to

  1. Flip-flop movement of proteins

  2. Fluid nature of lipid and proteins

  3. Quassi-fluid nature of lipids

  4. Vertical movement of lipid and proteins
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The fluid mosaic model describes the plasma membrane as a fluid structure where lipids and proteins can move laterally, facilitating processes like secretion, endocytosis, and cell division.

Multiple choice biology reaching the age of adolescence maintaining the reproductive health the age of adolescence adolescence

The conditions essential for good health are

  1. Physically fit and healthy

  2. Cleanliness

  3. Good social and economic condition

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A person needs to be fit physically, mentally and socially. For being in good health, all the three aspects are interrelated. 

So, the correct answer is option D.

Multiple choice biology reaching the age of adolescence maintaining the reproductive health the age of adolescence adolescence

Which of the following is/are not considered as a balanced diet for adolescence?

  1. Pulses

  2. Aerated drinks

  3. Alcohol

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

Fast food, alcohol, aerated drinks are never healthy for any age groups. It is because the junk foods contain more oil, calories and sugars but no nutritional value. During adolescence, there is a more nutritional  requirement. Thus, it is never advisory for that age group.

Multiple choice biology reaching the age of adolescence maintaining the reproductive health the age of adolescence adolescence

Why is it essential to take protein rich diet during puberty?

  1. To get sufficient energy

  2. For rapid growth and development

  3. For formation of strong bones and teeth

  4. To protect oneself from diseases
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Protein rich foods are important for your child's growth and muscles development, specially during puberty. It also meets energy requirements too.

Multiple choice biology reaching the age of adolescence maintaining the reproductive health the age of adolescence adolescence

At puberty, a diet rich in proteins is essential for

  1. Supplying sufficient energy

  2. The formation of new cells for growth

  3. The formation of strong bones and teeth

  4. Protection from diseases
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

At puberty, a diet rich in proteins is essential for the formation of new cells for growth. Amino acids are assimilated and transformed by our body into other proteins which help in the building of new cells for growth.

Calcium and vitamin-D are essential for the formation of strong bones and teeth.
Fats are responsible for supplying sufficient energy.
Vitamin C is essential to boost our immune system to fight against diseases.
So, the correct answer is option B.

Multiple choice biology the age of adolescence maintaining the reproductive health reaching the age of adolescence adolescence

Adolescents should be careful about what they eat, because

  1. Proper diet develops their brains.

  2. Proper diet is needed for the rapid growth taking place in their body.

  3. Adolescents feel hungry all the time.

  4. Taste buds are well developed in teenagers.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Our nutritional requirements change as we move through different life stages. Adolescence place extra demands on the body which need to be met by our daily diet to maintain the best of the health.
During adolescence, there is a growth spurt and the children need plenty of calories and nutrients.
Thus, the correct answer is the option (B), 'Proper diet is needed for the rapid growth taking place in their body'.

Multiple choice biology the age of adolescence maintaining the reproductive health reaching the age of adolescence adolescence

A dietary deficiency disease is

  1. Anaemia

  2. Diabetes

  3. Tetanus

  4. Cretinism
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Dietary deficiencies are disorders which occur because of a lack of essential nutrients in the diet or because the body cannot absorb and process those nutrients once they are eaten. Most dietary deficiency diseases are caused by a lack of protein, vitamins, or minerals. Iron is necessary for the formation of certain proteins and enzymes. Haemoglobin, which is the oxygen-carrying protein in the blood, is iron-dependent protein. Iron deficiency can lead to anaemia, a lack of oxygen in the blood, which in turn can lead to fatigue and other complications. Good food sources of iron are liver, lean meats, legumes, dried fruits, and green leafy vegetables. 
Therefore, the correct answer is option A.