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51.

Define the term genetics.

Answer» Define the term genetics.
52.

At 25℃, a 0.1m solution of Ch3cooh is 1.35% dissociated. calculate the freezing point and osmotic pressure of the solutio

Answer» At 25℃, a 0.1m solution of Ch3cooh is 1.35% dissociated. calculate the freezing point and osmotic pressure of the solutio
53.

Loudspeaker announcements, blowing of horns and burning of crackers cause ___ pollution.

Answer»

Loudspeaker announcements, blowing of horns and burning of crackers cause ___ pollution.

54.

How did the creatures of Bingle bog react to the nightingale's singing?

Answer»

How
did the creatures of Bingle bog react to the nightingale's singing?

55.

What happens in reflex action?

Answer»

What happens in reflex action?

56.

Darwin's explanation that the young of any species compete for food and survival, and those that survive are strong and pass their traits on to their young was called which of the following?

Answer»

Darwin's explanation that the young of any species compete for food and survival, and those that survive are strong and pass their traits on to their young was called which of the following?

57.

Photo chemical Smog is the product of atmospheric pollution by

Answer» Photo chemical Smog is the product of atmospheric pollution by
58.

What is the preference order of migration for various groups in Pinacole pinacolone formation ?

Answer» What is the preference order of migration for various groups in Pinacole pinacolone formation ?
59.

14.Why there is change in enthalpy as it is also the function of temparature in isothemal process

Answer» 14.Why there is change in enthalpy as it is also the function of temparature in isothemal process
60.

Write difference between.Primary and secondary pollutants.

Answer»

Write difference between.



Primary and secondary pollutants.

61.

Number of monochlorodervatives formed on chlorinating n-butane is

Answer» Number of monochlorodervatives formed on chlorinating n-butane is
62.

why nh3 have all equal bond lengt

Answer» why nh3 have all equal bond lengt
63.

State the main dictate(s) of Lamarck's theory.

Answer» State the main dictate(s) of Lamarck's theory.
64.

___ gas maintains acid-base balance in the blood.

Answer»

___ gas maintains acid-base balance in the blood.

65.

The renal vein carries blood __________ .

Answer»

The renal vein carries blood __________ .


66.

Write a short note on Spinal cord.

Answer» Write a short note on Spinal cord.
67.

Define infectious diseases.

Answer» Define infectious diseases.
68.

Describe the process of respiration in following parts of a planr- 1)root 2)stem 3)leaves

Answer»

Describe the process of respiration in following parts of a planr-

1)root

2)stem

3)leaves

69.

The phylogenetic system of classification is based on:

Answer»

The phylogenetic system of classification is based on:


70.

Explain Ascent of Sap.(5 marks)

Answer» Explain Ascent of Sap.(5 marks)
71.

The sum of infinite terms of the following series 1+45+752+1053+....... will be[MP PET 1981; RPET 1997; Roorkee 1992; DCE 1996, 2000]

Answer» The sum of infinite terms of the following series 1+45+752+1053+....... will be

[MP PET 1981; RPET 1997; Roorkee 1992; DCE 1996, 2000]
72.

A cylindrical structure P in our body begins in continuation with medulla and extends downwards. It is enclosed in a bony cage Q and surrounded by membranes R. As many as x pairs of nerves arise from the structure P. The structure P is involved in the reflex actions of our body and conduction of nerve impulses to and from another organ S of our body with which it forms CNS. (a) Name the structure P. (b) Name (i) bony cage Q, and (ii) membranes R. (c) How much is x ? (d) Name the organ S. (e) What are the reflexes involving structure P only known as ?

Answer»

A cylindrical structure P in our body begins in continuation with medulla and extends downwards. It is enclosed in a bony cage Q and surrounded by membranes R. As many as x pairs of nerves arise from the structure P. The structure P is involved in the reflex actions of our body and conduction of nerve impulses to and from another organ S of our body with which it forms CNS.

(a) Name the structure P.

(b) Name (i) bony cage Q, and (ii) membranes R.

(c) How much is x ?

(d) Name the organ S.

(e) What are the reflexes involving structure P only known as ?

73.

Which blood vessel carry blood from alveoli to left ventricle?

Answer»

Which blood vessel carry blood from alveoli to left ventricle?

74.

Which of the following is the function of parathormone?

Answer»

Which of the following is the function of parathormone?


75.

If iodine is not available what will we use to confirm the presence of starch?

Answer»

If iodine is not available what will we use to confirm the presence of starch?

76.

Question 12A basket of vegetables contains carrot, potato, radish and tomato. Which of them represent the correct homologous structures?(a) Carrot and potato(b) Carrot and tomato(c) Radish and carrot(d) Radish and potato

Answer»

Question 12

A basket of vegetables contains carrot, potato, radish and tomato. Which of them represent the correct homologous structures?




(a) Carrot and potato

(b) Carrot and tomato

(c) Radish and carrot

(d) Radish and potato



77.

What is the by product of phagocytosis of RBC in Kupffer cells of liver?

Answer» What is the by product of phagocytosis of RBC in Kupffer cells of liver?
78.

Which of the following corrborales the fact the genetic code is degenerate?

Answer»

Which of the following corrborales the fact the genetic code is degenerate?


79.

The major cause for depletion of ozone layer in stratosphere can be attributed to:

Answer»

The major cause for depletion of ozone layer in stratosphere can be attributed to:



80.

Question 3Which part of the brain maintains posture and equilibrium of the body?

Answer»

Question 3

Which part of the brain maintains posture and equilibrium of the body?



81.

The pyramid of numbers shows a decrease in both numbers and ___.

Answer» The pyramid of numbers shows a decrease in both numbers and ___.
82.

What is karyokinesis? Explain.

Answer» What is karyokinesis? Explain.
83.

explain greenhouse effect and global warming in detail

Answer» explain greenhouse effect and global warming in detail
84.

Why is pineal gland also known as biological clock?

Answer»

Why is pineal gland also known as biological clock?

85.

Amoeba and Volvox do not require any respiratory pigment to transport oxygen. The possible reason could be …………………………

Answer»

Amoeba and Volvox do not require any respiratory pigment to transport oxygen. The possible reason could be …………………………



86.

Elaborate-Variations are beneficial to the species but not to the organisms.

Answer» Elaborate-Variations are beneficial to the species but not to the organisms.
87.

What is an antibiotic? Give two examples.

Answer» What is an antibiotic? Give two examples.
88.

Which life process helps in release of energy? and which gas is inhaled into our body during breathing?

Answer»

Which life process helps in release of energy? and which gas is inhaled into our body during breathing?

89.

What are the male and female sex hormones?

Answer»

What are the male and female sex hormones?

90.

what is the difference between colostrum and breast milk ?explain with 4 differences.

Answer» what is the difference between colostrum and breast milk ?explain with 4 differences.
91.

Which of the following part of the body is responsible for the complete digestion of carbohydrates, proteins and fats?

Answer»

Which of the following part of the body is responsible for the complete digestion of carbohydrates, proteins and fats?


92.

Where is Interstitial fluid drained?

Answer» Where is Interstitial fluid drained?
93.

Range of audible sound is

Answer» Range of audible sound is
94.

How does fish respirate?

Answer» How does fish respirate?
95.

Does neurilemma protect OR nourish neurons?

Answer» Does neurilemma protect OR nourish neurons?
96.

Which of the following hormone(s) directly control the menstrual cycle?

Answer»

Which of the following hormone(s) directly control the menstrual cycle?



97.

What is endometrium and where is it located? [2 MARKS]

Answer» What is endometrium and where is it located? [2 MARKS]
98.

Which of these are biodegradable?

Answer»

Which of these are biodegradable?


99.

What is the difference between an organ and an organelle?

Answer»

What is the difference between an organ and an organelle?



100.

Amphibians share with reptiles all of the following features except:

Answer»

Amphibians share with reptiles all of the following features except: