AIIMS Biology Mock Test - 9


60 Questions MCQ Test AIIMS Mock Tests & Previous Year Papers | AIIMS Biology Mock Test - 9


Description
This mock test of AIIMS Biology Mock Test - 9 for NEET helps you for every NEET entrance exam. This contains 60 Multiple Choice Questions for NEET AIIMS Biology Mock Test - 9 (mcq) to study with solutions a complete question bank. The solved questions answers in this AIIMS Biology Mock Test - 9 quiz give you a good mix of easy questions and tough questions. NEET students definitely take this AIIMS Biology Mock Test - 9 exercise for a better result in the exam. You can find other AIIMS Biology Mock Test - 9 extra questions, long questions & short questions for NEET on EduRev as well by searching above.
QUESTION: 1

Most of the cells in areolar tissue are

Solution:
QUESTION: 2

Which one of these is a set usefly insects?

Solution:
QUESTION: 3

Leveret is young one of

Solution: Leveret is young of - HARE ( crossword clue) so ans is D.
QUESTION: 4

In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): The collenchyma is thick walled living tissue.
Reason(R): The collenchyma is thickened due to the deposition of pectin.

Solution:

Collenchyma is a specialized type of parenchyma which is a supporting tissue. The cell walls are irregulary thickened due to the deposition of cellulose and pectin.

QUESTION: 5

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): Generally the intraspecific competition is more intense than interspecific competition.
Reason (R): Intraspecific competition occurs when the resources are in short supply.

Solution:
QUESTION: 6

In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Typhoid carriers may be cured by surgical removal of their spleen.
Reason(R): The disease germs remain concentrated in it.

Solution:

Typhoid carriers may be interfered by surgical removal of gall bladder. As the bacteria are more concentrated in the gall bladder. But this typhoid bacilli may take up a natural habitat somewhere in the intestinal tract independent of the gall bladder.

QUESTION: 7

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): Relationship between sea anemone and hermit crab is said to be an example of obligate mutualism.
Reason (R): Obligate mutualism is a positive (beneficial) interaction between two species.

Solution:
QUESTION: 8

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): All insect pollinated flowers are cross pollinated.
Reason (R): Okra is a self pollinated plant.

Solution:

Pollination by insects is of very general occurrence among plants. pollination of a flower in which the pollen is carried on an insect is called entomophily. Entomophilous flowers are usually brightly coloured and scented and often secrete nectar. In some species (e.g. Primulas) there are structural differences between the flowers to ensure that cross- pollination occurs. Other examples of entomophilous flowers are orchids and antirrhinums. In Okra, the androecium is monoadelphous. It has a staminal column to which are attached monothecous anthers by small filaments. The capitate stigman projects beyond the staminal column. Bristile beetles are closely associated with the flowers of Okra and feed upon is petals and pollen grains.
While crawling inside the flower the beetles transfer pollen grains to the upper surface of the stigma.
Although, an insect is involved in this pollination, it is self pollination as pollen is transferred to the stigma of same flower

QUESTION: 9

In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Chromosomal aberrations are caused by a break in the chromosome or its chromatid.
Reason(R): Duplication, deficiency, transversion and translocations are the result of chromosomal aberrations.

Solution:

Chromosomal aberrations are disruptions in the normal chromosomal content of a cell, and are a major cause of genetic conditions in humans, such as Down syndrome. Strucural changes are caused by break in the chromosome or chromatid and can be of following types: (i) deficiency, involves loss of a part of chromosome, (ii) duplication, involves addition of a part of chromosome, (iii) inversion involves a reverse order of the genes in a part of chromosome and (iv) translocation, involves exchange of segments between non-homologous chromosomes.

QUESTION: 10

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): Herbivores are called first order consumers.
Reason (R): Lion is a carnivore.

Solution:
QUESTION: 11

In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): A person who has received a cut and is bleeding needs to be given anti-tetanus treatment.
Reason(R): Anti-tetanus injection provides immunity by producing anitbodies for tetanus.

Solution:

Tetanus is a serious and often fatal disease caused by the neurotoxin tetanospasmin which is produced by the gram positive obligate anaerobic bacterium Clostridium tetani.Ifection begins when the bacteria are introduced into an open injury or wound where they produce tetanospasmin toxin which blocks messages from the spinal cord to the muscles, forcing muscles to go into severe spasm.Therefore a person who has received a cut and is bleeding needs to be given antitetanus treatment.
Antitetanus immunoglobin gives passive immunity. Tetanus is best prevented by active immunization with tetanus toxoid which stimulates the production of protective antitoxin.

QUESTION: 12

In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): DNA code is not copied in the synthesis of transfer RNA.
Reason(R): Transfer RNA move out of the nucleus and after attaching on the ribosomes, form the template.

Solution:

tRNA is synthesized in the nucleus as a DNA template. Only 0.025% of DNA codes for tRNA. tRNA is an exception to other cellular RNAs in that a part of its ribonucleotide sequence (-CCA) is added after it comes off the DNA template tRNA is formed from only a small part of DNA molecule. Therefore, it does not show any obvious base relationship to DNA.

QUESTION: 13

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): Only the outer integument of ovule forms the seed coat.
Reason (R): The cotton fibres of commerce are formed by the outer integument.

Solution:
QUESTION: 14

In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Some individuals suffer anaemia due to the deficiency of iron.
Reason(R): Minerals are not part of biologically active substances.

Solution:

The deficiency of iron is the most dominant factor that causes anaemia.Iron in human body is contained in haemoglobin in the red blood cells.Anaemia may be defined as a condition in which there is a decrease in the quantity of haemoglobin or in the number of red cells.
Minerals are biologically active substances.Some minerals are sodium, chlorine, potassium, calcium, phosphorus, iron , iodine, copper, zinc , cobalt , etc.

QUESTION: 15

In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Cyanobacteria are photosynthetic, blue green algae with all the prokaryotic structures.
Reason(R): They are green due to presence of chloroplasts.

Solution:

Blue green algae or cyanobacteria are autotrophs. The photosynthetic pigments include chlorophyll a , carotenoids and phycobilin. The prokaryotic nature of cyanobacteria is due to lack of membrane bound cell organelles like mitochondria, chloroplast and distinct nucleus.

QUESTION: 16

In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Senescence is the time when age associated defects are manifested.
Reason(R): Certain genes may be undergoing seqential switching on and off during one's life.

Solution:

Senescence is the process of aeging which is cumulative changes in an organism, organ, tissue, or cell leading to a decrease in functional capacity. In humans aeging is associated with degenerative changes in the skin, bones heart, blood vessels, lungs, nerves etc.The genetically controlled programme is regulated by regulatory genes.There is wide range of life spans among different animal species.Examples - A few days in the fruit fly to more than 100 years in tortoise.
Genes which have a deleterious effect on individual's fitness are selected.Mutations in these genes which postponed the deleterious effect of the gene to a later time in individuals's life history reduce the effect of natural selection to the gene because the selection has less time to act on it.If the gene does not have a negative effect until after the individual has reproduced the gene may escape the natural selection altogether because when selection starts to affect the gene it has already propagated to the next generation. In a related fashion some genes may also help to ensure reproduction at the cost of diseases later in life.

QUESTION: 17

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): Chlorophyll a and chlorophyll b are structurally different.
Reason (R): Chlorophyll a contains methyl group while chlorophyll b contains formyl group.

Solution:
QUESTION: 18

In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A):Photomodulation of flowering is a phytochrome - regulated process.
Reason(R): Active form of phytochrome (Pfr) directly induces floral induction in shoot buds.

Solution:

Flowering is a phytochrome regulated process.Phytochrome is a blue protein pigment with a molecular mass of about 125 kDa.Phytochrome occurs in two interconvertible forms PR which absorbs red light and PFR which absorbs far red light.
PFR is active form of phytochrome.When PR molecules are exposed to red light most of them absorb it and are then converted to PFR. This cnversion causes floral induction in the shoot.

QUESTION: 19

In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Interferons are a type of antibodies produced by body cells infected by bacteria.
Reason(R): Interferons stimulate inflammation at the site of injury.

Solution:

Interferons are not antibodies.These are defence proteins that are produced by body cells that are infected by a virus. They travel to nearby cells and prevent the spread of the virus.
Cells that have been infected produce chemical called histamine. This chemical causes the blood capillaries to dilate (get wider) and become more porous. As a result the area swells, gets red, becomes warm, and is painful. This results in more white blood cells coming to the area to fight the infection. If the inflammation happens over the whole body we get a fever. The fever is the body’s way to combat bacteria and viruses. The higher temperature inhibits the pathogen from reproducing.Interferons do not stimulate inflammation at the site of injury.

QUESTION: 20

In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Vernalization is acceleration of subsequent flowering by low temperature treatment.
Reason(R): Site of vernalization is apical meristem.

Solution:

Vernalization is the low temperature treatment given to water soaked seeds, slightly germinated seeds oe seedlings to hasten the flowering ofplants that will develop from them.T.D. Lysenko in 1928 for the first time used the term vernalization foe a low temperature promotion of flowering in plants.
The site of vernalization in most of the plants is apical meristematic cells in the bud.

QUESTION: 21

In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Clones are group of organism of identical genotype, produced by same kind of sexual reproduction and same sexual processes.
Reason(R): These are prepared by a group of cells that descended from many cells or by inbreeding of a completely heterozygous line.

Solution:

Clone is a group of cells descended from the same single parent cell. In most of the cases, nucleic acid sequences are said to be cloned when they are inserted into vectors such as plasmids and copied within host cells during gene manipulation.

QUESTION: 22

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): Many plants are propagated vegetatively even though they bear seeds.
Reason (R): Potatos multiply by tubers, apple by cutting etc.

Solution:
QUESTION: 23

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): Sweet potato has reproductive roots.
Reason (R): Adventitious buds are roots.

Solution:
QUESTION: 24

A polysaccharide, which is synthesized and stored in liver cells, is

Solution:
QUESTION: 25

In ABO system of blood grouping, transfusion is not possible from

Solution:
QUESTION: 26

Which of the following enzymes helps in alcoholic fermentation?

Solution:
QUESTION: 27

Which base is not found in DNA ?

Solution:
QUESTION: 28

Lead arsenate is a

Solution:
QUESTION: 29

The drug Santonin is obtained from the flowers of

Solution:
QUESTION: 30

Saffron is obtained from

Solution:
QUESTION: 31

In which pre-historic man's period was proper burial of dead bodies started?

Solution:
QUESTION: 32

Which is correctly matched

Solution:
QUESTION: 33

A heterozygous round seeded plant is crossed to recessive wrinkled seeded plant. The progeny would be

Solution:
QUESTION: 34

ABO incompatibility differs from Rh incompatibility in that it

Solution:
QUESTION: 35

Blood of AB group cannot be given to B group patient because

Solution:
QUESTION: 36

Pancreatitis is mainly the result of _____ activity.

Solution:
QUESTION: 37

Rh factor is named after

Solution:
QUESTION: 38

Which of the following lies between replication and translocation ?

Solution:
QUESTION: 39

The disease erythroblastosis foetalis of human baby is due to

Solution:
QUESTION: 40

Who discovered vaccine against small pox?

Solution:
QUESTION: 41

Antibiotics are

Solution:
QUESTION: 42

Bacterium, with flagella all over its body, is called

Solution:
QUESTION: 43

Which of the following is a micronutrient?

Solution:
QUESTION: 44

Use the following information to answer the question: 1. Axon 2. Dendrite 3. Cell body 4. Receptor The correct order for the transmission of an impulse along a sensory neuron

Solution:
QUESTION: 45

Ribulose biphosphate carboxylase oxygenase is located inside

Solution:
QUESTION: 46

Which of the following trees will die first

Solution:
QUESTION: 47

Somaclonal variations are the ones

Solution:
QUESTION: 48

A nectar secreting gland cell has

Solution:
QUESTION: 49

Bicollateral bundles occur in the stem of

Solution:
QUESTION: 50

Planting of several rows of coniferous trees, along the highways, checks

Solution:
QUESTION: 51

Insulin is

Solution:
QUESTION: 52

Generally in Angiosperms and Gymnosperms the number of integuments is respectively

Solution:
QUESTION: 53

The site of testosterone production in the cytoplasm of an interstitial cell is the

Solution:
QUESTION: 54

Select the correct statement about the uterine cycle.

Solution:
QUESTION: 55

Which of the following is not carried by haemoglobin?

Solution:
QUESTION: 56

Which of the following is the smallest RNA ?

Solution:
QUESTION: 57

Human vertebral formula is

Solution:
QUESTION: 58

Study of cause of disease shall come under

Solution:
QUESTION: 59

Phenomenon of industrial melanism demonstrates

Solution:
QUESTION: 60

In the spadix, the spathe surrounds

Solution:

Similar Content

Related tests