50295 + Interview Questions in Secondary School in Biology

1.	Write name of 10 scientist and their discover/inventions.
Answer» Answer: 1..Archimedes----The Archimedes’ Screw Still in use today, one of Archimedes’ greatest inventions is the Archimedean Screw. Archimedes probably invented this device when he visited Egypt, where it’s still used for irrigation. The screw is also helpful for lifting finely divided solids such as ash, grain, and sand from a lower level to a higher level. 2..Robert hooke----Robert Hooke discovered plant cells and discovered Hooke’s Law – the law of elasticity. He also: invented the balance spring, vital for accurate timekeeping in pocket watches invented a machine that cut teeth for cogs used in watches – these cogs were cut in finer detail than any person could have managed, enabling more delicate watch mechanisms to be developed 3...Benjamin Franklin---- Benjamin Franklin discovered one of the fundamental laws of physics – the Law of Conservation of Electric Charge – and proved that lightning is electricity. He also: invented bifocal spectacles invented the Franklin stove invented the lightning rod 4..Alessandro Volta----Alessandro Volta Alessandro Volta was the first person to isolate methane gas. He discovered that methane mixed with air could be exploded using an electric SPARK: this is the basis of the internal combustion engine. He also found that electric potential in a capacitor is directly proportional to electric charge. Oh, and he invented the electric battery 5..Louis pasteur----Louis Pasteur discovered that some molecules have mirror images – these can be described as left-handed and right-handed versions of a chemical compound. He banished forever the concept of spontaneous generation in biology – the idea that bacterial life could just appear from nowhere in fruit or that maggots could appear spontaneously in meat. Pasteur invented the process of pasteurization and patented it in 1862. During pasteurization, farm and brewery products such as milk, wine and beer are heated briefly to a temperature between 60 and 100 °C, killing microorganisms that can cause them to go bad. 6..Lord kelvin----Lord Kelvin, whose original name was William Thomson, codified the first two laws of thermodynamics and deduced that the absolute zero of temperature is −273.15 °C. He was honored for this with the naming of the Kelvin temperature scale. On the Kelvin scale, absolute zero is found at 0 kelvin. In addition to his work as a physics professor, he was also an inventor, devising equipment which he patented that allowed transatlantic telegraph signalling to take place via an undersea cable. 7...William crooks---William Crookes was a physical chemist who discovered and named the element thallium. In 1875 he invented the Crookes tube, an evacuated electrical discharge tube, which he used to generate so-called cathode rays. We now know that cathode rays are streams of electrons. Crookes used magnetic fields to prove that cathode rays consisted of negatively charged particles. 8..Wilhlem Rontgen----Wilhelm Röntgen was a physics professor. He received the very first Nobel Prize in Physics in 1901 for his discovery of X-rays. Within two weeks of first generating X-rays he had invented X-ray photography. The first ever X-ray photograph was of the bones in his wife’s hand. When his university, the University of Würzburg, realized how dramatically X-rays would transform the diagnosis of bone injuries and diseases, it awarded Röntgen an honorary degree in medicine 9..SANTIAGO Ramony Cajal----Santiago Ramón y Cajal is the father of neuroscience. He won the Nobel Prize for Physiology/Medicine in 1906 for his neuron doctrine. In a time when people had to pose for several minutes to have a photograph taken, Ramón y Cajal invented a new process that needed a pose of only three seconds. Unfortunately, he learned later that Thomas Edison had got there first! 10...Pierre Curie--- Pierre Curie shared the 1903 Nobel Prize in Physics with his wife, MARIE Curie, and Henri Becquerel for their discoveries in radioactivity. Over a decade earlier, in 1880, Pierre Curie and his brother Jacques had discovered piezoelectricity. Pierre and Jacques then invented the piezoelectric quartz electrometer which detects and measures electric charge. Interestingly, Pierre and Marie’s Nobel Prize winning work depended on measurements made using the piezoelectric quartz electrometer Pierre and Jacques had invented many YEARS earlier HOPE IT WILL HELP YOU!!!

1.

Write name of 10 scientist and their discover/inventions.

Answer»

Answer:

1..Archimedes----The Archimedes’ Screw

Still in use today, one of Archimedes’ greatest inventions is the Archimedean Screw.

Archimedes probably invented this device when he visited Egypt, where it’s still used for irrigation. The screw is also helpful for lifting finely divided solids such as ash, grain, and sand from a lower level to a higher level.

2..Robert hooke----Robert Hooke discovered plant cells and discovered Hooke’s Law – the law of elasticity. He also:

invented the balance spring, vital for accurate timekeeping in pocket watches

invented a machine that cut teeth for cogs used in watches – these cogs were cut in finer detail than any person could have managed, enabling more delicate watch mechanisms to be developed

3...Benjamin Franklin----

Benjamin Franklin discovered one of the fundamental laws of physics – the Law of Conservation of Electric Charge – and proved that lightning is electricity. He also:

invented bifocal spectacles

invented the Franklin stove

invented the lightning rod

4..Alessandro Volta----Alessandro Volta

Alessandro Volta was the first person to isolate methane gas. He discovered that methane mixed with air could be exploded using an electric SPARK: this is the basis of the internal combustion engine. He also found that electric potential in a capacitor is directly proportional to electric charge.

Oh, and he invented the electric battery

5..Louis pasteur----Louis Pasteur discovered that some molecules have mirror images – these can be described as left-handed and right-handed versions of a chemical compound.

He banished forever the concept of spontaneous generation in biology – the idea that bacterial life could just appear from nowhere in fruit or that maggots could appear spontaneously in meat.

Pasteur invented the process of pasteurization and patented it in 1862.

During pasteurization, farm and brewery products such as milk, wine and beer are heated briefly to a temperature between 60 and 100 °C, killing microorganisms that can cause them to go bad.

6..Lord kelvin----Lord Kelvin, whose original name was William Thomson, codified the first two laws of thermodynamics and deduced that the absolute zero of temperature is −273.15 °C. He was honored for this with the naming of the Kelvin temperature scale. On the Kelvin scale, absolute zero is found at 0 kelvin.

In addition to his work as a physics professor, he was also an inventor, devising equipment which he patented that allowed transatlantic telegraph signalling to take place via an undersea cable.

7...William crooks---William Crookes was a physical chemist who discovered and named the element thallium.

In 1875 he invented the Crookes tube, an evacuated electrical discharge tube, which he used to generate so-called cathode rays. We now know that cathode rays are streams of electrons. Crookes used magnetic fields to prove that cathode rays consisted of negatively charged particles.

8..Wilhlem Rontgen----Wilhelm Röntgen was a physics professor. He received the very first Nobel Prize in Physics in 1901 for his discovery of X-rays.

Within two weeks of first generating X-rays he had invented X-ray photography. The first ever X-ray photograph was of the bones in his wife’s hand.

When his university, the University of Würzburg, realized how dramatically X-rays would transform the diagnosis of bone injuries and diseases, it awarded Röntgen an honorary degree in medicine

9..SANTIAGO Ramony Cajal----Santiago Ramón y Cajal is the father of neuroscience. He won the Nobel Prize for Physiology/Medicine in 1906 for his neuron doctrine.

In a time when people had to pose for several minutes to have a photograph taken, Ramón y Cajal invented a new process that needed a pose of only three seconds.

Unfortunately, he learned later that Thomas Edison had got there first!

10...Pierre Curie---

Pierre Curie shared the 1903 Nobel Prize in Physics with his wife, MARIE Curie, and Henri Becquerel for their discoveries in radioactivity.

Over a decade earlier, in 1880, Pierre Curie and his brother Jacques had discovered piezoelectricity.

Pierre and Jacques then invented the piezoelectric quartz electrometer which detects and measures electric charge.

Interestingly, Pierre and Marie’s Nobel Prize winning work depended on measurements made using the piezoelectric quartz electrometer Pierre and Jacques had invented many YEARS earlier

HOPE IT WILL HELP YOU!!!

28.	The organism which feed on only liquids items is known as?
Answer» THIS TYPE of ORGANISMS CALLED DECAY.

30.	Which histome protien are located in nucleosome?
Answer» MAKE YOUR CONCEPT CLEAR.

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