Science Biology MCQ-234

General Science-Biology Practice Questions for UPSC, CivilsPrelims, RBI, SSC, NDA, JPSC, UPPSC, CDS Exams



Assertion (A) Yeast cells have alcoholic fermentation.
Reason (R) Fermentation is an aerobic process.

 
 
 
 

Match the List I with List If and select the correct answer using the codes given below the lists.
List I List II
A. Rate of respiration 1. Auxanometer
B. Rate of growth of plant 2. Respirometer
C. Size of stomata 3. Heliotropic chamber
D. Demonstrate phototropism 4. Poromoter
Codes
ABCD

 
 
 
 

Consider the following statements
1. A biological process in which sugar is oxidised to release energy called respiration.
2. Carbon dioxide is released by plants during respiration.
3. Respiration is catabolic process.
Which of the statements given is/are true about respiration?

 
 
 
 

Which of the following contain enzyme for cellular respiration?

 
 
 
 

Study the following statements
1. Glycolysis takes place in cytoplasm.
2. Krebs’ cycle takes place in mitochondria.
3. Electron transport chain takes placein mitochondria.
Which of the statements given above are true?

 
 
 
 

Consider the following statements
1. Fermentation is incomplete oxidation of carbohydrate.
2. The net gain of energy from one gram mole of glucose during aerobic respiration is 38 ATP.
Which of the statement(s) given above is/are correct?

 
 
 
 

Consider the following statements
1. Glycolysis occurs in cytoplasm.
2. Glycolysis does not require oxygen.
3. In anaerobic organisms, only glycolysis occur and that is called fermentation.
Which of the statement(s) given above is/are correct about glycolysis?

 
 
 
 

Study the following statements
1. Incomplete breakdown of sugar in anaerobic respiration form alcohol and CO2.
2. In glycolysis, glucose is converted into pyruvic acid.
3. In Krebs’ cycle, pyruvic acid isconverted into CO2and H2O.
Which of the statement(s) given above is/are correct?

 
 
 
 

1. The energy currency of cell is ATP (Adenocine Triphosphate)
2. Maximum amount of energy (ATP) is liberated on oxidation of fat.
3. Alcohol is a product of anaerobicrespiration.
Which of the statement(s) given above is/are true?

 
 
 
 

Which one of the following cell organelles is responsible for cellular respiration?

 
 
 
 

Consider the following statements
1. Heparin is synthesized in liver.
2. The pacemaker of human heart is SA node.
3. The decrease in WBC conditionsleads to leukopenia.
Which of the statements given above are correct?

 
 
 
 

Which one of the following statements is correct with respect to salt water balance inside the body of living organisms?

 
 
 
 

In root nodules of legumes, leghaemoglobin is important because

 
 
 
 

Which one of the following statements is not correct?

 
 
 
 

Consider the following statements
1. Non-functioning of lacrymal gland is an important symptom of deficiency of vitamin-A.
2. Deficiency of vitamin-B1 can lead to indigestion and heart enlargement.
3. Vitamin-C deficiency can lead to pain in the muscles.
4. Deficiency of vitamin-D causes increased loss of Ca2+ in urine.
Which of the statements given above are correct?

 
 
 
 

Consider the following statements
1. Nervous tissue is made up of an organised network of nerve cells or neurons.
2. Neurons are specia lised for conducting information via electrical impulses from one part of the body to another.
3. The fore brain is the main thinking part of the brain.
Which of the statements given above are correct?

 
 
 
 

Consider the following statements
1 . The force that blood exerts against the wall of a vessel is called blood pressure.
2. The pressure of blood inside the artery during constraction is called systolic pressure and pressure in artery during relaxation is called diastolic pressure.
3. Blood pressure is measured with an instrument called sphygmomanometer.
Which of the statements given above are correct? __

 
 
 
 

Assertion (A) Generally, sperm cells are larger than egg cells.
Reason (R) It is due to presence of acrosome and mitochondria.

 
 
 
 

Flower in which pollination takes place through insect and their pollen grains are

 
 
 
 

Which among the following is not a true fruit?

 
 
 
 

Which one of the following types of plants produces spores and embryo, but without seeds and vascular tissues?

 
 
 
 

A seed is ripened

 
 
 
 

Assertion (A) Reproduction is the process by which living organisms produce young ones of their species. There are different form of reproduction.
Reason (R) Sex organs, male and female, are mandatory for reproduction.

 
 
 
 

The macro-nutrients provided by inorganic fertilizers are

 
 
 
 

The technique of the development of fruits without fertilization is known as