General Knowledge

Biology - Section 3

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Biology - Section 3

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Welcome to Online General Knowledge section in LearnFrenzy, which is important for all the competitive exams. We have created Some questions related to General Science(Biology) !!!

Question 1
Consider the following statements: 

1. Tissue culture is a technique of growing tissues of multicellular organisms in an artificial environment. 
2. It produces biologically inactive compounds for pharmaceutical industry. 
3. It helps for the conservation of endangered plant species. 
4. It can also produces disease prone plant materials. 

Select the correct options.

A
1 and 2
B
3 and 4
C
1 and 3
D
1 and 4
Correct Answer: Option C

It produces biologically active compounds and disease free plant materials for pharmaceutical industry.

Question 2
Consider the following statements:
 
1. The process of loosening and turning of the soil is called cultivating. 
2. The ploughed field may have big pieces of soil called Crumbs. 
3. Tilling helps in proper mixing of manure with the soil. 

Choose the correct options.

A
1 and 2
B
2 and 3
C
3 and 4
D
1,2, and 3
Correct Answer: Option B

The process of loosening and turning of the soil is called Tilling and ploughing.

Question 3
Consider the following statements: 

1. Yeast is used for production of alcohol and wine. 
2. Number of antibiotics are being produced from bacteria and fungi. 
3. Antibiotics produced from microorganisms are poisonous and disease causing. 
4. Sugar converted into alcohol through photosynthesis process. 

Choose the correct options.

A
1 ,2 and 3
B
1 and 2
C
2 ,3 and 4
D
3 and 4
Correct Answer: Option B

Antibiotics produced from bacteria and fungi are used as a medicine to kill harmful pathogens .They are non -poisonous and cure a variety of diseases.

Question 4
Heart is partitioned into 

1. Two chambers, upper chamber called atria and lower chamber called ventricle. 
2. Four chambers two upper chamber called ventricles and two lower chambers called atria.
3. Two chambers upper chamber called ventricle and lower chamber called atria. 
4. Four chambers two upper chamber called atria and two lower chamber called ventricle.

Which one of the above statements is correct?

A
1 and 2
B
2 and 3
C
3 only
D
4 only
Correct Answer: Option D

Four chambered heart is present in human being.

Question 5
Consider the following statements 

1. Arteries carry carbon dioxide rich blood from the heart to lungs. 
2. Veins are the vessels which carry carbon dioxide rich blood from all parts of the body back to the lungs. 
3. Arteries carry oxygen rich blood from heart to all parts of the body. 
4. Veins have thick walls. 

Which of the above statements is correct?

A
1 and 2
B
2 and 3
C
3 and 4
D
1 and 4
Correct Answer: Option B

No answer description available for this question.

Question 6
Consider the following statements 

1. Pulmonary artery carries blood from the heart .It carries carbon dioxide rich blood to the lungs. 
2. Pulmonary vein carries oxygen rich blood from the lungs to the heart. Which of the above 

statement is correct?

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2
Correct Answer: Option C

No answer description available for this question.

Question 7
Consider the following statements : 

1. Different functions in our body are performed by nutrients only. 
2. Nutrients are not chemical substances . 
3. Science which deals with nutrients is called neutrinology. 

Choose the correct options:

A
1 and 2 only
B
2 only
C
1 only
D
1,2 and 3
Correct Answer: Option C

Nutrients are chemical substances and the science deals with the study of nutrients is called Nutrition.

Question 8
Consider the following : 

1. Oxidised carbohydrates are utilized for different life processes in living cells of the body.
2. Maximum amount of carbohydrate is required for proper utilization of fat in the body.

Which one of the above statements is true?

A
1 only
B
2 only
C
Both
D
None
Correct Answer: Option A

Minimum amount of carbohydrate is required for proper utilization of fat by the body.

Question 9
Consider the following regarding proteins in our body. 

1. Proteins are specialized compounds contain elements like iron and iodine . 
2. Some of the proteins contain sulphur and copper. 
3. They are organic in nature containing carbon and oxygen only. 

Choose the incorrect options:

A
1 and 2 only
B
2 and 3 only
C
3 only
D
1 and 3 only.
Correct Answer: Option B

Some proteins contain sulphur and phosphorus.
The are organic in nature containing carbon ,hydrogen ,oxygen and nitrogen.

Question 10
With reference to dietary fats : 

1. Fats act as an insulator under the skin which helps in maintaining the body temperature.
2. Fat is not a rich source of energy as compared to other nutrients. 

Choose the correct option:

A
1 only
B
2only
C
Both of them
D
None
Correct Answer: Option A

Fat is a rich source of energy .Each gram of fat provides approximately 9 kilocalories of other nutrients.

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