Questions Related to biology

Multiple choice biology seeds - structure and germination dicot seed monocot seed structure of monocot and dicot seed

The exceptional example of a monocotyledonous plant having a central red midrib is

  1. Date palm (Phoenix dactylifera)

  2. Banana (Musa sp.)

  3. Indian shot (Canna indices)

  4. Bird of paradise flower (Strelitzia reginae)

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

The 'bird of paradise flower', or 'crane flower' as it is sometimes known, was first introduced into Britain in 1773 by Sir Joseph Banks. The plant itself can reach up to 5 feet in height with a 2-3 foot spread. The plant is trunk less, compact and clustering but slow growing with fleshy roots. S. reginae has banana shaped stiff- leathery, concave, oblong, bluish-gray leaves with a pale or red midrib. The leaves are attached to a long stalk that sometimes reaches up to 2 feet in length.

Multiple choice biology nutrition and diet effect on general health diseases caused by changes in lifestyle diet, drugs and disease

Nutritional disease will appear due to

  1. Obesity

  2. Unbalanced diet

  3. Mental disease

  4. Diabetes

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • A balanced diet means getting the right amount of foods and drinks to supply nutrition and energy for maintaining body cells, tissues and organs, and for supporting normal growth and development.
  •  A balanced diet is also important for lowering health risks, such as obesity, heart disease, diabetes, hypertension, and cancer. Hence, a nutritional disease will appear due to an unbalanced diet.

So, the correct answer is 'unbalanced diet'.
Multiple choice biology nutrition and diet effect on general health diseases caused by changes in lifestyle diet, drugs and disease

To keep a person healthy, he should be provided 

  1. High energy food

  2. Large amount of food

  3. Balanced diet

  4. Interest and spirit

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

A person should eat a balanced diet for healthy living. A balanced diet is the diet that contains all the components in optimum proportions and quantity required for maintaining the body in a perfect state of health, activity and development. Various components of the balanced diet are carbohydrates, fats, proteins, vitamins, mineral and roughage or fiber.

Multiple choice biology nutrition and diet effect on general health diseases caused by changes in lifestyle diet, drugs and disease

Which of the following is a good source of proteins?

  1. Eggs

  2. Rice

  3. Water

  4. Potato

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Balanced diet: A diet that contains the proper proportions of carbohydrates, fats, proteins, vitamins, minerals, and water necessary to maintain good health. 
  • Eggs are loaded with vitamins, minerals, high-quality protein, good fats and various other lesser-known nutrients. 
  • Eggs are so nutritious that they're often referred to as "nature's multivitamin." Hence, the egg is a good source of proteins.
So, the correct answer is 'eggs'.

Multiple choice biology nutrition and diet effect on general health diseases caused by changes in lifestyle diet, drugs and disease

Obesity, weakness, salt and water retention are the symptoms caused due to hypersecretion of

  1. Cortisol

  2. Aldosterone

  3. Parathormone

  4. Somatostatin

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

Cortisol is a steroid hormone, known as a glucocorticoid, made in the cortex of the adrenal glands and then released into the blood which transports it all round the body.  It is a life-sustaining hormone which maintains homeostasis. Almost every cell contains receptors for cortisol and so cortisol can have lots of different actions depending on which sort of cells it is acting upon. These effects include controlling the body’s blood sugar levels and thus regulating metabolism, acting as an anti-inflammatory, influencing memory formation, controlling salt and water balance, influencing blood pressure and helping the development of the foetus. In many species, cortisol is also responsible for triggering the processes involved in giving birth. Aldosterone, parathormone, and somatostatin do not cause the symptoms such as obesity, weakness, salt and water retention etc. Thus, option A is correct.

Multiple choice biology nutrition and diet effect on general health diseases caused by changes in lifestyle diet, drugs and disease

Mr. Deepak visited the doctor regarding excessive stomach ache and vomiting. The doctor told him to eat home cooked food and a lot of yoghurt. why?

  1. The yogurt will cool his stomach

  2. The yogurt has digestion aiding bacteria

  3. The yogurt will neutralize the acid

  4. All of the above

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

Yoghurt has much digestion aiding property as it is a dairy byproduct. yoghurt neutralize the acid which in turn cool the stomach. it also helps in digestion. 


So, the correct option is 'all of the above'

Multiple choice biology nutrition and diet effect on general health diseases caused by changes in lifestyle diet, drugs and disease

Obesity can be caused by the over intake of 

  1. Carbohydrates

  2. Vitamins

  3. Minerals

  4. Fats

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Obesity is a condition of the human body wherein there is an accumulation of excessive body fat. Such conditions have a negative effect on health and leads to reduced life expectancy as well as increases health problems. While excessive intake of calories added with lack of physical activity is the reason assigned for obesity. The increase in calorie intake is however not always linked to consumption of fats but is more so miked to increased use of carbohydrates in the diets. 
Therefore, the correct answer is option A.
Multiple choice human endocrine glands endocrine glands endocrine system and adolescence biology
Match the following$:$

| | COLUMN I | | COLUMN II | | --- | --- | --- | --- | | $i$ | Ovaries | A | Growth hormone | | $ii$ | Testes | B  | Thyroxine | | $iii$ | Pancreas | C | Adrenalin | | $iv$ | Adrenal gland    | D | Insulin | | $v$ | Thyroid | E | Testosterone | | $vi$ | Pituitary | F | Estrogen, Progesterone |
Find the appropriate match for column I from column II, i.e., match which gland secretes which hormones.

Adrenal gland located above kidneys produces

  1. F

  2. E

  3. C

  4. D

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

The endocrine system is composed of several endocrine glands. A ductless gland or endocrine gland secretes its product, i.e., hormones directly into the bloodstream and shows its effects at distinct part of the body. Adrenal gland located above kidneys produces adrenalin.

Multiple choice biology animal tissue types of neuron nervous tissue neural tissues

Which type of tissue forms spinal cord and brain?

  1. Muscular tissue

  2. Nervous tissue

  3. Epithelial tissue

  4. Connective tissue

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Spinal cord and brain control all activities of our body. Spinal cord possesses nerves, which carry messages between the brain and the body.
  •  The brain sends commands for the functioning of different organs of the body via nerves. 
  • Therefore, they are made of nervous tissue. Hence, option B is correct.