Botany - General Knowledge Questions and Answers

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Heterocyst is found in?

Bacteria
Cyanobacteria
Virus
Mycoplasma


Correct Answer :Cyanobacteria

Viruses are?/ विषाणु क्या स्त्रोत है?

Parasite/ परजीवी
Saprophyte/मृतोपजीवी
Symbiont/ सह जीवी
Free living/ स्वंतत्र जीवन


Correct Answer :Parasite/परजीवी

Black rust of wheat is caused by?

Puccinia gramin’s tritici
Ustilago tritici
Alternaria
All of these


Correct Answer :Puccinia gramin’s tritici

Bordeaux mixture is a common? / बोड मिश्रण है?

Herbicide/ शाकनाशी
Insecticide/ कीटनाशी
Fungicide/ कवक नाशी
All of these/ उपर्युक्त सभी


Correct Answer :Fungicide/ कवक नाशी

Study of algae is known as? /शेवाल का अध्ययन  कहलाता है?

Mycology/ माइकोलॉजी
Phycology/ फाइकोलॉजी
Virology/ वाइरोलॉजी
Bryology/ ब्रायोलॉजी


Correct Answer :Phycology/ फाइकोलॉजी

Parallel venation is a characteristic of? / समानांतर शिरा विन्यास लक्षण है?

Pea/ मटर
Banyan/ बरगद
Grasses/ घास
Shoe flower/ गुलहड़


Correct Answer :Grasses/ घास

Radial vascular bundles is the characteristic of?/ अरीय संवहन पूल लक्षण है?

Root/ जड़
Stem/ तना
Leaf/ पत्ती
None of these /इनमे से कोई नहीं 


Correct Answer :Root/ जड़

True nucleus is absent in? /  सत्य केन्द्रक किसमें अनुपस्थित होता है?

Green algae/ हरित शैवाल में
Fungi, कवक में
Lichen/ लाइकेन में
Bacteria/ जीवाणु में


Correct Answer :Bacteria/ जीवाणु में

Which organelle takes part in photosynthesis?/  प्रकाश संश्लेषण में कौन सा कोशिकांग भाग लेता है?

Leucoplast / ल्यूकोप्लास्ट
Chromoplast /  क्रोमाप्लास्ट
Chloroplast / क्लोरोप्लास्ट
Mitochondria/ माइटोकॉन्ड्रिया


Correct Answer :Chloroplast / क्लोरोप्लास्ट

Cell membrane is? / कोशिका झिल्ली होती है?

Semipermeable/ वरणाक्रमक पारगम्य
Permeable/ पारगम्य
Impermeable/ अपारगम्य
All of these/ उपर्युक्त सभी


Correct Answer :Semipermeable/ वरणाक्रमक पारगम्य

What is the unit of protein synthesis in the cell?/  प्रोटीन संश्लेषण की इकाई है?

Mitochondria/ माइटोकॉन्ड्रिया
Chloroplast/ क्लोरोप्लास्ट
Ribosomes/ राइबोजोम
Lysosomes/ लाइजोजोम


Correct Answer :Ribosomes/ राइबोजोम

Which apparatus is used in the measurement of rate of transpiration? / वाष्पोत्सर्जन की दर  किससे मापी जाती है?

Auxeno meter
Potometer
Photometer
Respiro meter


Correct Answer :Potometer

Richmond and Lang effect is associated with? /रिचमंड और लैंग प्रभाव जुड़ा है?

Increase in length and flowering
Delay of senescence
Auxin bioassay
Avena Curvature test


Correct Answer :Delay of senescence

Enzymes are made up of? / एन्जाइम बने होते है?

Lipid/ लिपिड
Carbohydrate/ कार्बोहाइड्रेट 
Protein/ प्रोटीन
None of these/ उपर्युक्त में से कोई भी नहीं


Correct Answer :Protein/ प्रोटीन

Who was the first to coin the term ecosystem?

A)
Carl Linnaeus

B)
Arthur Tansley

C)
Thomas Robert Malthus

D)
Gregor Mendel


Correct Answer :

Arthur Tansley


Explanation :

Arthur G. Tansley (1871 – 1955), was a British botanist at the beginning of the 20th century, coined the term ecosystem

Which of the following is an air pollutant? / निम्नलिखित में से कौन सा वायु प्रदूषक है?

CO2.
CO.
N2.
O2


Correct Answer :CO.

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Direction

Swapnil start from his home and walked 35 km towards east, after that he turned to his right and walked 20 km. He again turned to his right and walks 35 km. Finally, he turned to his left and walked 20 km and reached his office. How far is his office from his home?

Numbers

How many 2 digit numbers are divisible by 6?

HCF and LCM

Find the smallest square number which is exactly divisible by 3, 5, 15, 18, 20 and 24?

HCF and LCM of two numbers are 82 and 574 respectively. if one of the numbers is 287, find the second number?

Numbers

How many numbers between 1200 to 1500 are multiple of 13?

Find the total number of terms in the series : -3, 1, 5, 9,............., 101 ?

Find the sum of the first 20 terms of the series : 8, -3, 11, -6, 14, -12, 17, -24,....... ?

Series

Find the missing term in the given series - 101, 120, 145, 168, (?), 224

Find the missing term in the given series - 11A13, 17E19, (?), 31O37, 41U43

Find the missing term in the given series - 2,4,8,3,9,27,4,16,(?),5,25,125

Agriculture

Which gas is fixed by Rhizobium bacteria present in the root nodules of a pea plant ?

Chemistry

The formation of sulphurous acid involves ?

The acid present in soft drinks is ?

The cathode of a dry cell is made of ?

The number of atoms present in the molecule of an element is known as its?

Physics

If the angle of incidence formed by a ray of light on a plane mirror is 37°, then the angle of refraction is?

A dynamo converts ?

If the time taken for hearing the echo of a girl's voice after reflection from a cliff is 6 seconds, calculate the distance of the girl from cliff ?