Biology

View in English View in Hindi

Sauria lacertidae is the scientific name of?

A)

crocodile


B)

hippopotamus


C)

lizard


D)

house fly



Correct Answer :

lizard


Explanation :

The Lacertidae are the family of the wall lizards, true lizards, or sometimes simply lacertas, which are native to Europe, Africa, and Asia.

Post comment
Cancel
Thanks for your comment.!
Write a comment(Click here) ...
View in English View in Hindi

Bile Juice is poured into the alimentary canal that is necessary for the absorption of?

A)
Na and Ca

B)
Fat soluble vitamins

C)
Amino acids

D)
Monosacchasides


Correct Answer :

Fat soluble vitamins


Explanation :

Bile juice is bitter, greenish liquid is produced in the liver and deposits in the gallbladder, which dissolve fat.

It is essential for absorption of fat and fat-soluble vitamins (A, D, E & K), digested lipids/fats (monoacyl glycerol and fatty acids), cholesterol, etc.

Vermiform appendix of alimentary canal is made up of?

A)
Digestive tissue

B)
Respiratory tissue

C)
Excretory tissue

D)
Lymphatic tissue


Correct Answer :

Lymphatic tissue


Explanation :

The appendix is ‚Äč‚Äčlocated in the lower right side of your stomach. It is a finger-shaped, thin, nearly 4 inch tall tube, which is part of your gastrointestinal tract.
The appendix a special type of tissue that is connected to the lymphatic system, which takes the necessary white blood cells to fight the infection.

The appendix does not help directly with digestion. It is not clear what role the appendix has in the body, and removal of the organ doesn't show any negative health consequences.

Sometimes, the appendix can become inflamed and infected, which result of an abdominal infection that has spread to the tiny organ, or some kind of obstruction that has blocked the small opening of the appendix.the resulting condition called appendicitis.

The infection or inhibition causes the bacteria in the appendix to grow out of control, and the organ can fill with pus and swell. which causes acute abdominal pain and other GI symptoms, including vomiting and diarrhea.
Removal of the appendix (an appendectomy) is often the necessary course of action, although antibiotics may be recommended and used to treat the infection without the need for surgical intervention that depending on the severity of the case and other health of the patient.

If the problem is left untreated, the pressure in the organ will increase until the appendix ruptures, or bursts.When the appendix bursts, it spreads its content throughout the abdomen, potentially infecting the peritoneum, which is the silk-like membrane that lines the abdominal cavity. A peritoneum infection, called peritonitis, can then lead to sepsis, a complication that's potentially deadly if not treated aggressively.

The most effective colour of visible light spectrum for Photosynthesis is?

A)
Blue

B)
Red

C)
Violet

D)
Green


Correct Answer :

Red


Explanation :

Plants are green due to green pigment called chlorophyll. This pigment absorbs light and converts it into energy that it uses for metabolism. this process is called photosynthesis.

There are two types of Chlorophyll pigments:
1. Chlorophyll A: It absorbs a lot of red light.
2. Chlorophyll B: It absorbs some blue light and some red light.

Photosystem most aborbs infrared and red light (540nm-630nm) and this is the reason that photosynthesis is maximum in red light.

The process of Photosynthesis is?

A)
Exothermic

B)
Endothermic

C)
Anabolic

D)
Catabolic


Correct Answer :

Anabolic


Explanation :

Anabolic processes are the processes that form compounds. That means higher energy bonds are created.

Photosynthesis is the process of CO2 and H2O are combined with the help of sunlight to form the large glucose molecule. This means that Photosynthesis is a anabolic process because it takes small molecules to form complex molecule.

The incomplete breakdown of sugar in anaerobic respiration results in the formation of?

A)
H2O and CO2

B)
Alcohol and CO2

C)
Fructose and H2O

D)
Glucose and CO2


Correct Answer :

Alcohol and CO2


Explanation :

Anaerobic Respiration: In this type of respiration, partial oxidation of food takes place and energy is released in the absence of oxygen. This type of respiration occurs in prokaryotic organisms like bacteria and yeast.
Ethyl alcohol and carbon dioxide are formed in this process.

Trachea is the respiratory organ of following animal?

A)
Cockroach

B)
Star fish

C)
Hydra

D)
Pila


Correct Answer :

Cockroach


Explanation :

Cockroaches do not have lungs. In fact, all the insects like Cockroache are draw air through external valves called spiracles and transport the air directly to the cells via tubes called trachea. To stop breathing, they simply close the spiracles.

Erythroblastosis Fetalis can occur if marriage takes place between?

A)
RH+ve man and Rh+ve woman

B)
Rh-ve man and Rh+woman

C)
Rh+ve man and Rh-ve woman

D)
Rh-ve man Rh-ve woman


Correct Answer :

Rh+ve man and Rh-ve woman


Explanation :

Erythroblastosis fetalis also known as hemolytic disease of the newborn, occurs due to Rh incompatibility between mother and fetus , resulting in several anemia and sometime death of fetus.

Rh incompatibility may develop when a woman with Rh-ve negative blood gets pregnant by a man with Rh+ve positive blood and conceives a fetus with Rh+ve positive blood.
This can cause jaundice and other, more serious complications in the new born, including possible heart failure.

treatment
If a baby experiences erythroblastosis fetalis in the womb, treatments include blood transfusion, IV fluid, immunoglobin, and address any difficulty in breathing to new born.

prevention
A preventive treatment known as RhoGAM or Rh immunoglobulin, by providing Rh immunoglobin to a pregnant woman to can reduce a mother’s reaction to their baby’s Rh+ve positive blood cells, blocking Rh sensitization can help prevent the situation.

The cavity of mid brain is known as?

A)
Iter

B)
Diocoel

C)
Metacoel

D)
Haemocoel


Correct Answer :

Iter


Explanation :

The original cavity of the mid-brain vesicle is represented by a fine canal, the iter or aqueduct of Sylvius, which is continued behind into the fourth ventricle, and opens in front into the third ventricle.

A man that takes large amount of protein in his diet, is likely to excrete more amount of?

A)
Urea

B)
Uric acid

C)
Sugar

D)
All of these


Correct Answer :

Urea


Explanation :

Urea is the principal nitrogenous waste product of metabolism and is generated from protein breakdown.

It is eliminated from the body almost exclusively by the kidneys in urine, and measurement of its concentration, first in urine and later in blood.

If a fertilized egg of plant has 40 chromosomes, the number of chromosome present in the pollen mother cells is?

A)
20

B)
40

C)
60

D)
80


Correct Answer :

40

Which of the following is the largest artery of human body?

A)

Femoral


B)

Axilla


C)

Carotid


D)

Aorta



Correct Answer :

Aorta


Explanation :

The largest artery is the aorta, the main high-pressure pipeline connected to the heart's left ventricle.Blood is pumped from the left ventricle into the aorta and from there branches to all parts of the body.
The aorta branches into a network of smaller arteries that extend throughout the body.

Which of the following is a primary function of haemoglobin?

A)

Utilisation of energy


B)

Prevention of anaemia


C)

Destruction of bacteria


D)

To transport oxygen



Correct Answer :

To transport oxygen


Explanation :

Hemoglobin is the main protein in mature red blood cells.The major role of hemoglobin is to carry oxygen from the lungs to the tissues and return carbon dioxide (CO2) from the tissue to the lungs.

hemoglobin can result in the following disorders:

Iron deficiency anemia
Lead poisoning
Thalassemia
Sideroblastic anemia

Latest Updates

Height and Distance

An aeroplane flying at a height of 300 m above the ground passes vertically above another plane at an instant when the angles of elevation of the two planes from the same point on the ground are 60º and 45º respectively. What is the height of the lower plane from the ground?

From the top of a building 90 m high, the angles of depression of the top and the bottom of a tree are 30º and 45º respectively. What is the height of the tree?

Trigonometry

What is the value of sinx √( 1 /1+cosx + 1 /1-cosx ) ?

What is cos4 A - sin4 A / cos2 A - sin2 A equal to?

If 7sin2 x +3cos2 x = 4, 0 < x < 90º ,then what is the value of tan x?

If x = a cosθ + b sinθ and y = a sinθ - b cosθ then what is x2 + y2 equal to?

Average

The mean of 5 numbers is 15. If one more number is included, the mean of the 6 numbers becomes 17. What is the included number?

The mean marks obtained by 300 students in a subject are 60. The mean of top 100 students was found to be 80 and the mean of last 100 students was found to be 50. The mean marks of the remaining 100 students are?

In an asymmetrical distribution, of the mean and median of the distribution are 270 and 220 respectively, then the mode of the data is?

Let a, b, c, d, e, f, g be consecutive even numbers and j, k, l, m, n be consecutive odd numbers. What is the average of all the numbers?

Alligation or Mixture

25 kg of alloy X is mixed with 125 kg of alloy Y. If the amount of lead and tin in the alloy X is the ratio 1 : 2 and the amount of lead and tin in the alloy Y is in the ratio 2 : 3, then what is the ratio of lead to tin in the mixture?

Simplification

The ratio of two numbers is 1 : 5 and their product is 320. What is the difference between the square of these two numbers?

Trigonometry

What is the value of cot 4π/3 ?

Indian Politics

Article-24 of the Indian Constitution ‘Prohibition of employment of children in factories, etc’ deals with?

Article-134A of the Indian Constitution ‘Certificate for appeal to the Supreme Court’ deals with?

Chemistry

Who invented Aspirin?

Physics

A larger force on a rotating body results in larger?

What is the unit of the physical quantity, magnetic flux density?