NEET SECTION - A [BOTANY - MCQ]

(B) Squamous epithelium
Squamous epithelium is involved in functions like forming a diffusion boundary

(D) All
Collagen fiber absent in
(1) Erythrocytes - RBC
(2) Leukocytes - WBC
(3) Thrombocytes - Platelets

(C) Phallomere
Spermatheca, Collaterial gland , Formation of ootheca - Female cockroach
Phallomere - Male cockroach

(C) a, b, e
Xylem , Phloem , Collenchyma - Plant tissue
Cartilage , Cuboidal epithelium - Animal tissue

(B) A is false but R is true

(D) Both Statement I and Statement II are correct
Statement-I- In haemophilia a single protein that is a part of the cascade of proteins involved in the clotting of blood is affected.
Statement - II- Thalassemia can be classified according to which chain of the haemoglobin molecule is affected.

(D) Both Statement I and Statement II are correct
Statement I :
The cell wall and middle lamellae may be traversed by plasmodesmata which connect the cytoplasm of neighbouring cells.
Statement II :
Cell wall not only gives shape to the cell and protects the cell from mechanical damage and infection it also helps in cell to cell interaction and provides barrier to undesirable macromolecules.

(D) All
Acetyl CoA, NADH, Pyruvate dehydrogenase - involved in oxidative decarboxylation

(D) All
In all given experiment bacteria was used.
bacteria - Prokaryotic organism

(A) A, B, C

(A) Fallopian tubes tied and cut	Tubectomy
(B) Vas deferens tied and cut	Vasectomy
(C) A type of contraceptive	Lactational Amenorrhea
(D) In-vivo fertilisation	Fusion of gametes within the female

(A) Placenta
The structure which provides vascular connection between foetus and uterus is called Placenta

(D) Floriculture
The cultivation and management of ornamental and especially flowering plants are called as Floriculture

(A) 1300, 427, 3000
In amazonian rain forest is the number of species of birds, mammals and fishes respectively
(1) 1300, 427, 3000

(C) GMO
The organism whose genes have been altered by manipulation are called GMO

(C) Isolated from multicellular organism.
The correct option for Taq polymerase
(1) A type of DNA polymerase
(2) Involved in PCR
(3) Isolated from unicellular organism.
(4) It remain active during the high temperature induced denaturation of double stranded DNA

(C) Both 1 and 2
Plasmids, Bacteriophage - Cloning vector.

(D) Some are isolated from prokaryotes and some from Eukaryotes.
The correct statement for Hind II, Pst I and EcoR I :
(1) All are RE
(2) All are isolated from prokaryotes
(3) All are cuts DNA at specific location
(4) All are isolated from prokaryotes

(D) Both Statement I and Statement II are correct
Statement I :
Greater the BOD of waste water, more is its polluting potential
Statement II :
Lesser the BOD of waste water, less is its polluting potential.

(D) Both Statement I and Statement II are correct
Statement I :
The use of drugs and alchohol damages nervous system and liver.
Statement II :
The use of drugs and alchohol during pregnancy is also known to adversely affect the foetus.

(D) All
In Human body the lymphoid tissue also located within the lining of the major tracts. The these tracts are
(1) Respiratory
(2) Digestive
(3) Urogenita

(B) Founder effect
Some times the change in allele frequency is so different in the new sample of population that they become a different species the original driffted population becomes founders and the effect is called Founder effect.

(B) WBC - Elongated

(1) Tracheid	Elongated
(2) WBC	Amoeboid
(3) Mesophyll cell	Round and oval
(4) Columnar epithelium cells	Long and narrow

(C) The ability to change the colour to hide them from their enemies
Camouflage - The ability to change the colour to hide them from their enemies

(A) Suberin, Casparian strips
In Dicot root the tangential as well as radial walls of the endodermal cells have a deposition of water impermeable, waxy material Suberin in the form of Casparian strips.

(D) Chordata
(1) Panthera - Genus
(2) Felidae - Family
(3) Carnivora - Order
(4) Chordata - Phylum

(D) Epipetalous
(1) Gamosepalous, Gamopetalous, Syncarpous - Cohesion
(4) Epipetalous - Adhesion

(A) A-I, B-II, C-III, D-IV

A. Stem	I. Nodes and internodes
B. Fibrous root system	II. Wheat
C. Tap root system	III. Mustard
D. Insectivorous plant	IV. Venus fly trap

(B) 10
Vertebrata - closed circulatory system is present

(A) Pollen grain, Rhizoids, Antheridium, gemma cup
Gametophyte - Pollen grain, Rhizoids, Antheridium, gemma cup, Archegonium, Archegoniophore, Antheridiophore.
Sporophyte - Root, Ovule, Megasporangium, strobili, protonema, Microsporangium, stem, prothallus

(D) C, D

(A) IP3	Second messengers
(B) Glucose to glycogen	Glycogenesis
(C) Prolonged hyperglycemia	Reason of diabetes mellitus
(D) Formation of WBC	Erythropoiesis

(C) A, B
(A) TCT - Thyroid gland
(B) PTH - Parathyroid gland
(C) MSH, TSH - Pituitary gland
(D) GIP - GIT

(D) All
Fibrous, Cartilaginous, Synovial - type of joints

(D) All
(A) CNS - Central Neural System
(B) PNS - Peripheral Neural System
(C) HMM - Heavymeromyosin
(D) LMM - Lightmeromyosin

(B) All
In human muscles have special property these properties are
a. Excitability
b. Contractibility
c. Extensibility
d. Elasticity

(A) Only a, b, c, d
Malpighian tubule , Nephridia , Green glands , Antennal glands , Kidney, Urecose glands - Excretory structure / organ

(B) Incomplete double circulation - Only amphibians
(1) Single circulation - Fishes
(2) Incomplete double - Amphibians, reptiles circulation
(3) Complete double - Birds circualtion
(4) Complete double - Mammals circulation

(D) Alveolus
In human body on the Alveolus pO₂ are 104 mmHg

(C) GA stimulates the closure of stomata and increases the tolerance of plants to various kind of stress
(1) Decapitation widely applied in tea plantations.
(2) Auxin helps in cell division
(3) ABA stimulates the closure of stomata and increases the tolerance of plants to various kind of stress
(4) GA also delay senescence

(D) All
The correct statements for factor in photosynthesis
a. Law of limiting factor was given by blackman's
b. Photosynthesis is under the influence of several factors both internal and external
c. Sunlight, water, and temperature are a type of external factor
d. Water stress causes the stomata to close hence reducing the CO₂ availability

(D) All
The correct statements for chemiosmosis hypothesis
a. Chemiosmosis requires a membrane, a proton pump, a proton gradient and ATP synthase
b. It is related with ATP formation
c. ATP synthase has a channel that allows diffusion of protons back across the membrane, this release enough energy to activate ATP synthase enzyme that catalyses the formation of aTP.
d. The breakdown of the gradient provides enough energy to cause a confirmational change in the CF1 particle of the ATP synthase, which makes the enzymes synthesise several molecules of energy packed ATP.

(A) 1.5 hours
The time duration of cell cycle in yeast - 1.5 hours or 90 minutes.

(B) Only B
(A) Glycerol - Lipid - 3 Carbon
(B) Ribose - Carbohydrate - 5 Carbon
(C) Uracil - Nitrogen base - 5 carbon
(D) Cholesterol - Lipid - More than 15 carbon.

(B) Only B

Element	% weight of Earths crust	% weight of human body
(A) Nitrogen	Very little	3.3
(B) Oxygen	46.6	65
(C) Calcium	3.6	1.5
(D) Magnesium	2.1	0.1