Botany

View in English View in Hindi

Lichens are a symbiotic association of?

A)

bread mould and green algae


B)

mushroom and green algae


C)

yeast and green algae


D)

cyanobacteria and fungi



Correct Answer :

cyanobacteria and fungi


Explanation :

A lichen is an organism that results from a mutualistic relationship between a fungus and a photosynthetic organism. The other organism is usually a cyanobacterium or green alga. The fungus grows around the bacterial or algal cells. The fungus benefits from the constant supply of food produced by the photosynthesizer.

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

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.

Latest Updates

General Computer Knowledge

What kind of material does ‘IC’ in computers made of?

Physics

The force required to produce an acceleration of 4 m/s2 in an object of mass 9 kg is?

Biology

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

Physics

Which of the following modes of heat transfer is faster?

Agriculture

Which of the following reproduces from underground stem?

Botany

Lichens are a symbiotic association of?

Physics

The unit of relative density is?

Problems on Ages

The ages of Gyanendra and Jitendra are in the ratio of 12:7 respectively. After 6 years, the ratio of their ages will be 3:2 respectively . find the difference in their ages?

Time and Work

X can do a piece of work in 20 days, while Y can do in 10 days. If Y worked at it for 8 days,then X can finish the remaining work in______.?

Coding-Decoding

In a certain code, BELIEF is written as AFKKDI. How is SELDOM written in that code?

Ratio and Proportion

Find the mean proportional between 8 and 32 ?

Percentage

A certain company has 120 employees who are engineers. Here, engineers constitute 30% of its work force. How many people are employed in the company?

Probability

From a well-shuffled deck of 52 cards, one card is drawn at random. Find the probability of getting a face card?

Profit and Loss

What percent profit is made by selling an article at a certain price if by selling at 2/3rd of that price, there would be a loss of 30%?

Average

Among five people with monthly income of Rs. 14000, Rs. 25000, Rs. 15000, Rs. 18000 and Rs.49000, how many will have income less than the mean income of the five people?

Problems on Trains

A train 100 meters long moving at a speed of 40 km/hr crosses a train 130 meters long coming from the opposite direction in 6 seconds. Find the speed of the second train?

Permutation and Combination

In how many different ways can the letters of the word ‘DESIGN’ be arranged so that the vowels are at the two ends?

Trigonometry

If sinA= 8/17 and cosA=15/17, then cotA=?