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1851.

Explain the glycolysis in detail.

Answer»

Explain the glycolysis in detail.

1852.

The adrenal gland in mammals is located

Answer»

The adrenal gland in mammals is located


1853.

Olfactory lobes are a part of:

Answer»

Olfactory lobes are a part of:


1854.

Stomata of desert plants remains closed during the day. Explain how and when they take up carbon dioxide to perform photosynthesis?

Answer» Stomata of desert plants remains closed during the day. Explain how and when they take up carbon dioxide to perform photosynthesis?
1855.

One of the examples of the action of the autonomous nervous system is:

Answer»

One of the examples of the action of the autonomous nervous system is:


1856.

The process of excreting unusable or undigested material through the anus is known as:

Answer»

The process of excreting unusable or undigested material through the anus is known as:


1857.

Differences between organisms in a species are described as variation. Which of the following would you describe as a continuous variation?

Answer»

Differences between organisms in a species are described as variation. Which of the following would you describe as a continuous variation?


1858.

Mention two disadvantages of enzyme - replacement therapy to treat ADA( adenosine deaminase defficiency.

Answer» Mention two disadvantages of enzyme - replacement therapy to treat ADA( adenosine deaminase defficiency.
1859.

Which of the following statements is incorrect?

Answer»

Which of the following statements is incorrect?


1860.

What will happen if spleen is removed from a human being's body?

Answer»

What will happen if spleen is removed from a human being's body?


1861.

What are the steps involved in the Sexual reproduction of a plant?

Answer»

What are the steps involved in the Sexual reproduction of a plant?

1862.

Mycobacterium leprae causes leprosy, Corynebacterium diphtheriae causes diphtheria and Vibrio comma causes________.

Answer»

Mycobacterium leprae causes leprosy, Corynebacterium diphtheriae causes diphtheria and Vibrio comma causes________.


1863.

The division phase of a cell, either in mitosis or meiosis is regulated by proteins called _____ and their dependent enzyme complexes called ______.

Answer»

The division phase of a cell, either in mitosis or meiosis is regulated by proteins called _____ and their dependent enzyme complexes called ______.


1864.

Accumulation of harmful chemicals in our body can be avoided. Justify the following statement.

Answer» Accumulation of harmful chemicals in our body can be avoided. Justify the following statement.
1865.

A cactus plant has thick, fleshy leaves. Do you agree? Give reasons.

Answer» A cactus plant has thick, fleshy leaves. Do you agree? Give reasons.
1866.

Today's genes are Mendel’s ___.

Answer»

Today's genes are Mendel’s ___.


1867.

What are Axopodia and Filopodia?

Answer» What are Axopodia and Filopodia?
1868.

How many different type of gametes could beproduced by an individual with the arbitrary genotype of AAbbCCDdEe

Answer»

How many different type of gametes could be
produced by an individual with the arbitrary genotype of AAbbCCDdEe


1869.

Tropism induced by touch is called:

Answer»

Tropism induced by touch is called:


1870.

Crops developed with desired characters by integrating foreign gene with their genome are called ___Genetically Modified Crops

Answer»

Crops developed with desired characters by integrating foreign gene with their genome are called ___


  1. Genetically Modified Crops


1871.

Write short notes on excreation, respiration, digesion and about its organs

Answer» Write short notes on excreation, respiration, digesion and about its organs
1872.

What is the evolutionary history of the modern man ?

Answer»

What is the evolutionary history of the modern man ?

1873.

The Ozone hole is maximum over

Answer»

The Ozone hole is maximum over


1874.

Which of the following parts of the eye are responsible for refraction and focusing?

Answer»

Which of the following parts of the eye are responsible for refraction and focusing?


1875.

Lack of sleep(a) decreases laziness.(b) weakens the body’s capacity to combat diseases.(c) helps youngsters to do well in their examinations.(d) prevents a person from gaining weight.

Answer»

Lack of sleep



(a) decreases laziness.



(b) weakens the body’s capacity to combat diseases.



(c) helps youngsters to do well in their examinations.



(d) prevents a person from gaining weight.

1876.

Match the following.Column IColumn II(1) Bark(A) A resistant coat that provides rigidity to plant cells(2) Cuticles(B) A polysaccharide that prevents the entry of germs(3) Cell wall(C) A dead cell that protects inner cells from the germs(4) Callose(D) The external layer of the epidermis of leaves

Answer» Match the following.



Column IColumn II(1) Bark(A) A resistant coat that provides rigidity to plant cells(2) Cuticles(B) A polysaccharide that prevents the entry of germs(3) Cell wall(C) A dead cell that protects inner cells from the germs(4) Callose(D) The external layer of the epidermis of leaves


1877.

Suggest measures in following situations.The level of air pollution is very high in your locality.

Answer»

Suggest measures in following situations.



The level of air pollution is very high in your locality.

1878.

Question 31A very small population of a species faces a greater threat of extinction than a larger population. Provide a suitable genetic explanation.

Answer»

Question 31

A very small population of a species faces a greater threat of extinction than a larger population. Provide a suitable genetic explanation.



1879.

Question 50Write two points of difference between asexual and sexual types of reproduction. Describe why variations are observed in the offspring formed by sexual reproduction.?

Answer»

Question 50

Write two points of difference between asexual and sexual types of reproduction. Describe why variations are observed in the offspring formed by sexual reproduction.?



1880.

Why doesnt HCl make holes in our stomach.Explain with a reason properly....

Answer»

Why doesnt HCl make holes in our stomach.Explain with a reason properly....

1881.

Name the natural method by which strawberry plants are propagated.

Answer»

Name the natural method by which strawberry plants are propagated.

1882.

In which of the following examples do you think the author will agree that you are mindful?

Answer»

In which of the following examples do you think the author will agree that you are mindful?

1883.

What are general characteristics of s block

Answer» What are general characteristics of s block
1884.

Write short notes onOil spills.

Answer»

Write short notes on



Oil spills.

1885.

(a) What is meant by 'grafting' as a means of propagation in plants? (b) Define 'stock' and 'scion'. (c) Describe the grafting method for the artificial propagation of plants with the help of labelled diagrams. (d) Name two fruit trees which are usually propagated by grafting method. (e) State two advantages of grafting method of artificial propagation of plants. (f) What is the difference between the cuttings method and grafting method for the artificial propagation of plants?

Answer»

(a) What is meant by 'grafting' as a means of propagation in plants?
(b) Define 'stock' and 'scion'.
(c) Describe the grafting method for the artificial propagation of plants with the help of labelled diagrams.
(d) Name two fruit trees which are usually propagated by grafting method.
(e) State two advantages of grafting method of artificial propagation of plants.
(f) What is the difference between the cuttings method and grafting method for the artificial propagation of plants?

1886.

Oil of vanilla bean is

Answer»

Oil of vanilla bean is

1887.

Water is lost by plants due to a process called transpiration. Which structure is responsible for it?

Answer»

Water is lost by plants due to a process called transpiration. Which structure is responsible for it?


1888.

Parthenogenic organisms developed from thelytoky are diploid females. Are they fertile?

Answer» Parthenogenic organisms developed from thelytoky are diploid females. Are they fertile?
1889.

how to remember the list of essntial amino acids.(is there any trick to remember

Answer» how to remember the list of essntial amino acids.(is there any trick to remember
1890.

brief description about the human evolution

Answer» brief description about the human evolution
1891.

Name the fat-storing tissue? Where is it located? What is its function? [3 MARKS]

Answer»

Name the fat-storing tissue? Where is it located? What is its function?
[3 MARKS]

1892.

Question 2The gap between two neurons is called a(a) Dendrite(b) Synapse(c) Axon(d) Impulse

Answer»

Question 2

The gap between two neurons is called a



(a) Dendrite

(b) Synapse

(c) Axon

(d) Impulse



1893.

The cell membrane is ___ permeable.

Answer»

The cell membrane is ___ permeable.


1894.

What is meant by metabolic inhibitors?

Answer»

What is meant by metabolic inhibitors?

1895.

Question 09Word game: Use the clues to work out the words.Across3. Protruding voice box in boys4. Glands without ducts7. Endocrine gland attached to brain8. Secretion of endocrine glands9. Pancreatic hormone10. Female hormoneDown1. Male hormone2. Secretes thyroxin3. Another term for teenage5. Hormone reaches here through blood stream6. Voice box7. Term for changes at adolescence

Answer» Question 09

Word game: Use the clues to work out the words.

Across

3. Protruding voice box in boys

4. Glands without ducts

7. Endocrine gland attached to brain

8. Secretion of endocrine glands

9. Pancreatic hormone

10. Female hormone



Down

1. Male hormone

2. Secretes thyroxin

3. Another term for teenage

5. Hormone reaches here through blood stream

6. Voice box

7. Term for changes at adolescence




1896.

What is lacteal present in villi of small intestine?

Answer»

What is lacteal present in villi of small intestine?

1897.

The embryo sac in most angiosperms is made up of

Answer»

The embryo sac in most angiosperms is made up of


1898.

8.Structure of ClF3

Answer» 8.Structure of ClF3
1899.

_____ are the substances used in the treatment and prevention of bacterial infections.

Answer»

_____ are the substances used in the treatment and prevention of bacterial infections.



1900.

Is it possible to remove cold air without removing hot air from that place??

Answer» Is it possible to remove cold air without removing hot air from that place??