Questions

Q:

Is Osmosis Active or Passive?

Answer

Osmosis is the process in which water molecules move from a region of higher water potential to a region of lower potential down a water potential gradient across a partially permeable membrane. It doen't requires any additional energy to do this work. 


So, Osmosis is a Passive.


 


Active and passive transport processes are two ways molecules and other materials move in and out of cells and cross intracellular membranes.


1. Active transport is the movement of molecules or ions against a concentration gradient (from an area of lower to higher concentration), which does not ordinarily occur, so enzymes and energy are required.


2. Passive transport is the movement of molecules or ions from an area of higher to lower concentration. Passive transport occurs because of the entropy of the system, so additional energy isn't required for it to occur.



3. Active transport requires energy to proceed, while passive transport does not require the input of extra energy to occur.

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Q:

In which world cup cricket final, Australia beat England?

A) 1987, Kolkata - India B) 1996, Lahore - Pakistan
C) 1983, Lord's - England D) 1992, Melbourne - Australia
 
Answer & Explanation Answer: A) 1987, Kolkata - India

Explanation:

Australia won the 1987/88 Reliance World Cup against England held in Kolkata, India.

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Q:

rlrgsmaorsi - Rearrange this word

A) Mobile screen B) Mirror glass
C) Ceiling fans D) None of the above
 
Answer & Explanation Answer: B) Mirror glass

Explanation:
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Q:

What is one map unit equivalent to

A) 1% recombination frequency B) the distance between a pair of homologous chromosomes
C) Both A & B D) 1 nanometer of distance between two genes
 
Answer & Explanation Answer: A) 1% recombination frequency

Explanation:

The distance between two genes is measured with a unit called map unit. One map unit is equivalent to 1% recombination frequency.

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Q:

Water is an excellent solvent because

Answer

Water is capable of dissolving a variety of different substances, which is why it is such a good solvent.

And, water is called the "universal solvent" because it dissolves more substances than any other liquid

It means that wherever water goes, either through the ground or through our bodies, it takes along valuable chemicals, minerals, and nutrients

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Q:

Organisms that feed on the excreta of other organisms are called 

A) autotrophs B) heterotrophs
C) coprophagous D) saprotrophs
 
Answer & Explanation Answer: C) coprophagous

Explanation:

The word coprodaeum refers to the last part of the elimentary canal.The excreta (undigested, matter) comes out of that part. So, the organisms that take in such materials are called coprophagous.

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Filed Under: Biology

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Q:

The first woman to receive Bharat Ratna?

A) Mother Teresa B) M.S Subbulakshmi
C) Indira Gandhi D) Lata Mangeshkar
 
Answer & Explanation Answer: C) Indira Gandhi

Explanation:

Indira Gandhi became the first woman to receive the Bharat Ratna award in 1971.

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Q:

In which year ' Human Rrights Resolution ' was adopted by the U.N

A) 1945 B) 1946
C) 1947 D) 1948
 
Answer & Explanation Answer: A) 1945

Explanation:
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