Biology - General Knowledge Questions and Answers

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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 ​​located 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

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.

Some seeds have hooks and spines. It helps the seeds to__________?

A)

escape from enemies


B)

attach to the parent body


C)

attach to the fur of other animals


D)

prevent drying



Correct Answer :

attach to the fur of other animals


Explanation :

Some fruits and seeds have hook-like projections, bristles, hairs, spines, which helps them to get attached to the animal skin, hoofs or body parts and get dispersed to other places.

Write the name of reptile with four chambered heart?

A)

Varanus


B)

Lizard


C)

Chameleon


D)

Crocodile



Correct Answer :

Crocodile


Explanation :

Except for Crocodile, which have a four-chambered heart, all reptiles have a three-chambered heart.

Cholera is caused by:

A)

Fungi


B)

Protozoa


C)

Viruses


D)

Bacteria



Correct Answer :

Bacteria


Explanation :

Cholera is caused by a bacteria called Vibrio cholera and is usually spread through contaminated drinking water or food.

Symptoms of cholera dehydration include watery diarrhea and vomiting, due to which such people can recover quickly.
Dehydration can lead to a rapid loss of minerals in your blood that maintain the balance of fluids in your body.

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