AIIMS Biology Mock Test - 5


60 Questions MCQ Test AIIMS Mock Tests & Previous Year Papers | AIIMS Biology Mock Test - 5


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This mock test of AIIMS Biology Mock Test - 5 for NEET helps you for every NEET entrance exam. This contains 60 Multiple Choice Questions for NEET AIIMS Biology Mock Test - 5 (mcq) to study with solutions a complete question bank. The solved questions answers in this AIIMS Biology Mock Test - 5 quiz give you a good mix of easy questions and tough questions. NEET students definitely take this AIIMS Biology Mock Test - 5 exercise for a better result in the exam. You can find other AIIMS Biology Mock Test - 5 extra questions, long questions & short questions for NEET on EduRev as well by searching above.
QUESTION: 1

Schneiderian membrane is found in

Solution: Nasal mucosa....modified mucous membrane forming the epithelial part of the olfactory organs.
QUESTION: 2

Haemoglobin -containing red blood is absent in

Solution:
The major difference between insect blood and the blood of vertebrates, including humans, is that vertebrate blood contains red blood cells.

Insects and other invertebrates, on the other hand, have what is called hemolymphia heterogeneous fluid that courses through their bodies, bathing all the internal tissues. Insects have a haemolyph instead of blood, which contains protein hemocyanin instead of hemoglobin. 

Hemolymph is mostly water, but it also contains ions, carbohydrates, lipids, glycerol, amino acids, hormones, some cells and pigments.

The pigments, however, are usually rather bland, and thus insect blood is clear or tinged with yellow or green. (The red color that you see upon squashing a housefly or fruit fly is actually pigment from the animal's eyes.)
QUESTION: 3

Which one features is common to leech, cockroach and scorpion?

Solution: Ventral nerve cord is common to leech (Annelida) cockroach and scorpion (Arthropoda) while nephridia are found in annelids and presence of antennae and cephalization are characteristics of arthropods.
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): Lysosomes help in the process of photorespiration.
Reason(R): Lysosomes have acidic enzymes.

Solution:

Lysosomes do not help in the process of photorespiration. Photorespiration is the process which occurs only in plants, while lysosomes are found in animal cells. Photorespiration occurs in three organelles - chloroplast, peroxysomes and mitochondria. Lysosomes are small vesicles containing hydrolysing enzymes which is acidic in nature (i.e pH is about 4.8) and surrounded by single membrane. Hydrolytic enzymes are present in the form of minute crystalline or semicrystalline granules of 5 to 8 nm.

QUESTION: 5

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): Neurospora is commonly called water mould.
Reason(R): It belongs to basidomycetes fungi.

Solution:

Neurospora is commonly called pink/red bread mould or pink mould. It belongs to class ascomycetes fungi or sac fungi. It is used in experimental genetics as it can be grown easily in a definite medium in laboratory. It is a haploid and a heterothallic fungus having+ve and - ve mycelia and somatic fusion of two halpoid nuclei produce a diploid zygote. The zygote by one meiotic and another mitotic divisions forms 8-nuclei and hence ascospores, a characteristic structure of ascomycetes are produced.

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): Inflammation of a skeletal joint may immobilize movements of the joint.
Reason(R): Uric acid crystals in the joint cavity and ossification of articular cartilage lead to this.

Solution:

Inflammation is a process in which the body's WBCs and the chemicals are released into the blood or the affected tissue to protect us from infection and foreign substances such as bacteria and viruses.This release of chemicals increases the blood flow to the area of injury or infection.Inflammation is characterized by redness, swollen joint that are warm to touch, joint pain, joint stiffness and loss of joint movement.
The increase in number of cells and inflammatory substances within the joint causes irritation, wearing down of cartilage and swelling of the joint lining. Inflammation of one or more joint results in arthritis. When there is a deposition of uric acid and crystals of sodium urates in the joints it will lead to gout arthritis.Gout affects one or two joints only. It is very painful particularly at night and makes movement difficult.Gout generally affects great toe.

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): Cladodes are atems of unlimited growth.
Reason (R): Only the main stem is modified as cladodes.

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): Photorespiration is a wasteful process.
Reason (R): Photorespiration occurs in both C3 and C4 plants.

Solution:
QUESTION: 9

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): There is no mechanism for opening and closing of hydathode.
Reason (R): Hydathode is made up of parenchymatous cells.

Solution:
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): 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: 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): Rhoeo leaves contain anthocyanin pigments in epidermal cells.
Reason(R): Anthocyanins are accessory photosynthetic pigments.

Solution:

Anthocyanin is a colouring pigment of certain higher plants that imparts a bluish or reddish colour.
Rhoeo leaves contain anthocyanin pigments in epidermal cells.

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): In recombinant DNA technology, human genes are ofter trnsferred into bacteria (prokaryotes) or yeast (eukaryote).
Reason(R): Both bacteria and yeast mulitiply very fast to form huge populations which express the desired gene.

Solution:

In recombinant DNA technology widely used host for replication andamplification of recombinant DNA are prokaryotic E.coli and the eukaryotic yeast. They replicate very fast to form a large population which expressed desired gene.Yeast artificial chromosome are important cloning tools for the analysis of complex genome such as that of humans. They allow the maintenance, propogation and analysis of such genome in an experimentally tractable system, the yeast.

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): The first sperm reaches the egg nucleus earlier than the second sperm.
Reason (R): The first fertilization takes less time than second fertilization.

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): The concentration of methane in the atmosphere has more than doubled in the last 250 years.
Reason(R): Wetlands and rice fields are the major sources of methane.

Solution:

Hydrocarbons are major air pollutants. Methane is produced naturally during decomposition of organic matter, incomplete biomass combustion. Its concentration was 700 ppb in pre industrial times and 1750 ppb in 2000. So, the concentration has more than doubled in that last 250 years.Flooded paddy fields, amrshes, cattles etc. are the major sources of this gas.

QUESTION: 15

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): Cytochromes are a group of a copper-containing electron transferring proteins.
Reason (R): The terminal cytochrome reacts with oxygen.

Solution:
QUESTION: 16

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): Exocrine glands are also known as ductless glands.
Reason (R): Thyroid gland directly pours its secretion, i.e., thyroxine, into the blood.

Solution:
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): Wheat is a caryopsis.
Reason (R): Its pericarp is well differentiated.

Solution:
QUESTION: 18

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): The endodermal cells of dicot root form casparian strip.
Reason (R): Endodermis functions as a biological check post.

Solution:
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): Persons suffering from haemophilia fail to produce blood clotting factor VIII.
Reason(R): Prothrombin producing platelets in such persons are found in very low concentration.

Solution:

Haemophilia is a blood disorder where the blood does not clot normally. Haemophilia A is the most common form, caused by a deficiency of blood clotting factor VIII. Haemophilia B is due to a deficiency of blood clotting factor IX. Haemophilia is an hereditary disorder. In almost all cases, it is males that suffer the condition, although it is passed on by both females and males carrying the gene. Queen Victoria was a carrier of haemophilia A. It is also known as classical haemiophilia and factor VIII deficiency haemophilia, B is also known as Factor IX haemophilia, and Christmas disease after the first patient diagnosed with it. Prophrombin producing platelets in such persons are not found in very low concentraion.

QUESTION: 20

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): Presence of pneumatophores (the respiratory roots) is a special adaptation of hydrophytes.
Reason (R): Pnematophores help to take up oxygen from the atmosphere and transport it to the main roots.

Solution:
QUESTION: 21

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): Water absorption is reduced by lowering O2 tension.
Reason (R): The accumulation of CO2 reduces water absorption.

Solution:
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): Mangroves show breathing roots.
Reason (R): Soil air is almost negligible in swamps.

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): Low annual rainfall occurs in deserts.
Reason (R): Deserts may be hot or cold.

Solution:
QUESTION: 24

The form in which sugar is present in sugarcane

Solution:
QUESTION: 25

The opening of the upper chamber of the heart into the lower chamber is known as

Solution:
QUESTION: 26

Secretion of gastric juice is stopped by

Solution:
QUESTION: 27

R.Q. of malic acid is-

Solution:
QUESTION: 28

Which of the following processes results in a change of the cellular DNA amount ?

Solution:
QUESTION: 29

Eucalyptus belongs to the family

Solution:
QUESTION: 30

Major food crops of the world belong to the family

Solution:
QUESTION: 31

Fibre of great commercial importance derived from epidermis is

Solution:
QUESTION: 32

The major advantage of bipedal locomotion is that it

Solution:
QUESTION: 33

The process of transfer of genetics information from DNA to RNA/formation of RNA from DNA is

Solution:
QUESTION: 34

Nobel Prize for one gene one enzyme hypothesis was given to

Solution:
QUESTION: 35

A homozygous red flower is crossed with recessive white. Red is dominant over white. The progeny in the F1 generation will be :

Solution:
QUESTION: 36

Mild hemolytic disease and jaundice of new born can be due to

Solution:
QUESTION: 37

Interferons are synthesised in response to

Solution:
QUESTION: 38

T-lymphocytes mature in

Solution:
QUESTION: 39

Suspension of attenuated pathogen that stimulates antibody formation is

Solution:
QUESTION: 40

AIDS related complex or ARC is

Solution:
QUESTION: 41

Cyathium and hypanthodium types of inflorescence are similar in having

Solution:
QUESTION: 42

Bacterium associated with legume roots is

Solution:
QUESTION: 43

A few organisms are known to multiply at 100º−108ºC.They are probably

Solution:
QUESTION: 44

NPK denotes

Solution:
QUESTION: 45

Damage to the corpus callosum could

Solution:
QUESTION: 46

The process of photosynthesis is

Solution:
QUESTION: 47

Maximum solar energy is trapped by

Solution:
QUESTION: 48

Epidermal fibres of economic importance belong to

Solution:
QUESTION: 49

The fermentation in yeast is

Solution:
QUESTION: 50

A bicollateral vascular bundle is characterised by

Solution:
QUESTION: 51

NEERI is at

Solution:
QUESTION: 52

Which one of the following cannot be traced in proteins?

Solution:
QUESTION: 53

In angiosperms, free nuclear divisions occurs during

Solution:
QUESTION: 54

In normal healthy individuals the percentage of adult and fetal haemoglobin, HbA : HbA2 : HbF is

Solution:
QUESTION: 55

The process of inhaling is accomplished in part by

Solution:
QUESTION: 56

The ovaries

Solution: The ovary has a cortex-medullary organization and is surrounded by a thick connective tissue capsule, the tunica albuginea. The surface of the tunica albuginea is covered with a cuboidal, germinal epithelium. The tunica albuginea is a layer of condensed tissue on the surface of the ovary. It is composed of short connective-tissue fibers with fusiform cells between them.
QUESTION: 57

RNA differs from DNA in having :

Solution:
QUESTION: 58

Collar bone is known as

Solution:
QUESTION: 59

Phenomenon of organisms resembling others for escaping from enemies is

Solution:

Mimicry is a related phenomenon where an organism has a similar appearance to another species. Example-'io moth', (Automeris io), which has markings on its wings which resemble an owl's eyes. When an insectivorous predator disturbs the moth, it reveals its hind wings, temporarily startling the predator and giving it time to escape.

QUESTION: 60

Reason for diversity in living beings is due to

Solution:

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