NEET Previous Year Question Papers - Neet 2018 Question Paper - Quiz-4 Solution

Q.1.

Pollen grains can be stored for several years in liquid nitrogen having a temperature of

17%
\(-120^0C\)
33%
\(-80^0C\)
50%
\(-196^0C\)
0%
\(-160^0C\)

Q.2.

Which of the following hormones can play a significant role in osteoporosis?

0%
Parathyroid hormone and Prolactin
33%
Estrogen and Parathyroid hormone
67%
Progesterone and Aldosterone
0%
Aldosterone and Prolactin

Q.3.

Double fertilization is

0%
Fusion of one male gamete with two polar nuclei
33%
Fusion of two male gametes of a pollen tube with two different eggs
33%
Syngamy and triple fusion
33%
Fusion of two male gametes with one egg

Q.4.

The difference between spermiogenesis and spermiation is

33%
In spermiogenesis spermatozoa are formed, while in spermiation spermatids are formed.
0%
In spermiogenesis spermatids are formed, while in spermiation spermatozoa are formed.
67%
In spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from sertoli cells into the cavity of seminiferous tubules.
0%
In spermiogenesis spermatozoa from sertoli cells are released into the cavity of seminiferous tubules, while in spermiation spermatozoa are formed.

Q.5.

Which one of the following population interactions is widely used in medical science for the production of antibiotics?

0%
Mutualism
0%
Amensalism
67%
Parasitism
33%
Commensalism

Q.6.

What is the role of \(NAD^+\) in cellular respiration?

33%
It functions as an enzyme.
33%
It is a nucleotide source for ATP synthesis.
0%
It functions as an electron carrier.
33%
It is the final electron acceptor for anaerobic respiration.

Q.7.

Match the columns

Column I	Column II
a. Proliferative Phase	(i) Breakdown of endometrial lining
b. Secretory Phase	(ii) Follicular Phase
c. Menstruation	(iii) Luteal Phase

0%
a -- iii b -- i c -- ii
0%
a -- ii b -- iii c -- i
67%
a -- iii b -- ii c -- i
33%
a -- i b -- iii c -- ii

Q.8.

Natality refers to

33%
Birth rate
0%
Number of individuals entering a habitat
0%
Death rate
67%
Number of individuals leaving the habitat

Q.9.

Which of the following structures or regions is incorrectly paired with its functions?

0%
Corpus callosum : band of fibers connecting left and right cerebral hemispheres
33%
Medulla oblongata : controls respiration and ardiovascular reflexes
33%
Limbic system : consists of fibre tracts that interconnect different regions of brain; controls movement
33%
Hypothalamus : production of releasing hormones and regulation of temperature, hunger and thirst

Q.10.

The two functional groups characteristic of sugars are

100%
Carbonyl and hydroxyl
0%
Carbonyl and methyl
0%
Hydroxyl and methyl
0%
Carbonyl and phosphate

Q.11.

Select the incorrect match :

0%
Polytene chromosomes – Oocytes of amphibians
0%
Lampbrush chromosomes – Diplotene bivalents
67%
Submetacentric chromosomes – L-shaped chromosome
33%
Allosomes – Sex chromosomes

Q.12.

Which part of poppy plant is used to obtain the drug “Smack”?

33%
Roots
33%
Flowers
33%
Latex
0%
Leaves

Q.13.

Match the columns

Column I	Column II
a. Fibrinogen	(i) Osmotic balance
b. Globulin	(ii) Blood clotting
c. Albumin	(iii) Defence mechanism

0%
a -- i b -- ii c -- iii
0%
a -- ii b -- iii c -- i
100%
a -- iii b -- ii c -- i
0%
a -- i b -- iii c -- ii

Q.14.

Which of the following is not a product of light reaction of photosynthesis?

0%
Oxygen
33%
NADPH
67%
ATP
0%
NADH

Q.15.

The experimental proof for semiconservative replication of DNA was first shown in a

0%
Plant
33%
Fungus
67%
Bacterium
0%
Virus

Q.16.

Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively?

33%
Inflammation of bronchioles; Decreased respiratory surface
0%
Increased number of bronchioles; Increased respiratory surface
67%
Decreased respiratory surface; Inflammation of bronchioles
0%
Increased respiratory surface; Inflammation of bronchioles

Q.17.

Identify the vertebrate group of animals characterized by crop and gizzard in its digestive system

33%
Amphibia
0%
Aves
33%
Reptilia
33%
Osteichthyes

Q.18.

Match the columns

Column I	Column II
a. Glycosuria	(i) Accumulation of uric acid in joints
b. Gout	(ii) Mass of crystallised salts within the kidney
c. Renal calculi	(iii) Inflammation in glomeruli
d. Glomerular nephritis	(iv) Presence of glucose in urine

0%
a -- iii b -- ii c -- iv d -- i
67%
a -- iv b -- i c -- ii d -- iii
33%
a -- i b -- ii c -- iii d -- iv
0%
a -- ii b -- iii c -- i d --iv

Q.19.

Which of the following is a secondary pollutant?

33%
\(CO\)
33%
\(SO_2\)
0%
\( O_3\)
33%
\(CO_2\)

Q.20.

In which of the following forms is iron absorbed by plants?

33%
Free element
33%
Ferric
33%
Both ferric and ferrous
0%
Ferrous

Q.21.

Which of the following is true for nucleolus?

0%
Larger nucleoli are present in dividing cells
67%
It takes part in spindle formation
33%
It is a membrane-bound structure
0%
It is a site for active ribosomal RNA synthesis

Q.22.

The transparent lens in the human eye is held in its place by

0%
ligaments attached to the iris
33%
smooth muscles attached to the iris
33%
ligaments attached to the ciliary body
33%
smooth muscles attached to the ciliary body

Q.23.

Niche is

33%
the range of temperature that the organism needs to live
33%
the functional role played by the organism where it lives
0%
all the biological factors in the organism's environment
33%
the physical space where an organism lives

Q.24.

In which disease does mosquito transmitted pathogen cause chronic inflammation of lymphatic vessels?

33%
Ascariasis
33%
Ringworm disease
33%
Elephantiasis
0%
Amoebiasis

Q.25.

Oxygen is not produced during photosynthesis by

0%
Nostoc
33%
Green sulphur bacteria
67%
Cycas
0%
Chara

Q.26.

Conversion of milk to curd improves its nutritional value by increasing the amount of

0%
Vitamin A
33%
Vitamin E
67%
Vitamin \(B_{12}\)
0%
Vitamin D

Q.27.

Match the columns

Column I	Column II
a. Eutrophication	(i) UV-B radiation
b. Sanitary landfill	(ii) Deforestation
c. Snow blindness	(iii) Nutrient enrichment
d. Jhum cultivation	(iv) Waste disposal

0%
a. -- ii b. -- i c. -- iii d. -- iv
67%
a. -- iii b. -- iv c. -- i d. -- ii
33%
a. -- i b. -- ii c. -- iv d. -- iii
0%
a. -- i b. -- iii c. -- iv d. -- ii

Q.28.

Match the columns

Column I	Column II
a. Tidal volume	(i) 2500 – 3000 mL
b. Inspiratory Reserve volume	(ii) 1100 – 1200 mL
c. Expiratory Reserve volume	(iii) 500 – 550 mL
d. Expiratory Reserve volume	(iv) 1000 – 1100 mL

33%
a -- iii b -- i c -- iv d -- ii
33%
a -- iii b -- ii c -- i d -- iv
33%
a -- iv b -- iii c -- ii d -- i
0%
a -- i b -- iv c -- ii d -- iii

Q.29.

What type of ecological pyramid would be obtained with the following data? Secondary consumer : 120 g Primary consumer : 60 g Primary producer : 10 g

0%
Upright pyramid of biomass
33%
Inverted pyramid of biomass
33%
Upright pyramid of numbers
33%
Pyramid of energy

Q.30.

Which of the following organisms are known as chief producers in the oceans?

33%
Diatoms
33%
Dinoflagellates
0%
Euglenoids
33%
Cyanobacteria

Support mcqgeeks.com by disabling your adblocker.