Hint and solutions of Online MCQ Quiz -01
Hints and solutions of Online MCQ Quiz - 01
1) Connecting link between amphibia and reptilia is:
a. Seymouria✔
b. Neopilina
c. Chimaera
d. Ornithorhyncus
Neopilina = Connecting link between annelida and mollusca
Chimaera = Connecting link between cartilaginous and bony fish
Ornithorhyncus = Connecting link between reptiles and mammals
For more detail about connecting links, missing links and living fossils, click here.
2) Which of the following is false fish?
a. Cuttle fish✔
b. Dog fish
c. Flying fish
d. Sucker fish
False fishes = Jelly fish, Devil fish, Silver fish, Razor fish, Hag fish, Cuttle fish, Shell fish, Star fish.
For its mnemonics, click here.
3) Reissenr's membrane lies between:
a. Scala vestibuli and Scala tympani
b. Scala vestibuli and Scala media✔
c. Scala tympani and Scala media
d. Scala media and organ of corti
Basilar membrane is present in between scala tympani and scala media.
Tectoral membrane is present above organ of corti.
4) Erythropoietin is secrated by:
a. Liver
b. Pancreas
c. Spleen
d. Kidney ✔
Kidney secrates three major hormones: @RED
R = Renin
E = Erytheopoietin
D = Vitamin D
5) Digital formula of hind limb of rabbit is:
a. 2,3,3,3,3
b. 0,3,3,3,3✔
c. 0,2,2,3,3
d. 2,2,3,4,3
Digital formula of forelimb of rabbit = 2,3,3,3,3
Digital formula of forelimb of frog = 0,2,2,3,3
Digital formula of hindlimb of frog = 2,2,3,4,3
6) Root tip cells are rich in:
a. Endoplasmic rericulum
b. Mitochondria
c. Golgi bodies✔
d. Centrioles
Cells of root cap contain abundant golgi bodies which secrate mucilage to lubricate soil particles.
7) Which anticodon is present in corresponding t-RNA, if m-RNA has UGA code?
a. ACT
b. TCU
c. AUC
d. None ✔
Since, UGA is non-sense codon, so it does not have any anticodon.
Non-sense codons:- UAG (Amber), UAA (Ochre), UGA (Opal)
8) Laminarion oil is the reserve material of:
a. Brown algae✔
b. Red algae
c. Green algae
d. Blue green algae
Floridian starch = Red algae(Rhodophyceae)
Laminarion oil or mannital oil = Brown algae(Pheophyceae)
Starch = Green algae(chlorophyceae)
9) Cleistogamous flower is present in:
a. Arachis hypogea✔
b. Cassia fistula
c. Nelumbo nucifera
d. Zea mays
Flower that does not open even after maturation is called cleistogamous flower. Plant like Arachis hypogea (ground nut) has flower inside soil surface. Only self fertilization takes place in them and fruit development occurs within its nut.
10) Which of the following monocot shows secondary growth?
a. Sugarcane
b. Orchid
c. Yam
d. Agave ✔
Monocots showing secondary growth = @DAY
D = Dracena
A = Agave
Y = Yucca
11) Most of the primary aquatic animals excrete:
a. Urea
b. Ammonia✔
c. Uric acid
d. Amino acid
Ammonia is highly toxic among other excretes, so it requires large amount of water to expel. Thus for adoptation, most of the ammonotelic animals are primary aquatic animals.
Urea = It is less toxic than ammonia and can remains in body for some time.
Amino acid = These are the direct end product of protein digestion. It is excreted by some mollusca and some echinodermata.
Uric acid = It is dry and arid form of excrete. It helps to conserve water in the body. It is excreted mostly by birds, insects and land reptiles.
12) Which type of vision is present in cockroach?
a. Binocular vision
b. Mosaic vision✔
c. Blur vision
d. Monochromatic vision
Cockroach have mosaic vision due to compound eyes.
Visual unit of compound eye is ommatidium.
13) Single occipital condyle is present in:
a. Human
b. Frog
c. Salamander
d. Pigeon✔
◾Reptilia and aves have only one occipityl condyle in its skull, so it is called as monocondylic.
◾Amphibia and mammalia have two occipital condyle in its skull, so it is called as dicondylic.
NOTE= For instant remember:
Those animals which can rotate their head easily are monocondylic and those animals which can't rotate are dicondylic.
14) Which of the following has highest velocity of impulse conduction?
a. S.A. node
b. A.V. node
c. Bundle of His
d. Purkinje Fibres✔
Velocity of impulse conduction:
SA node < AV node < Bundle of His < Purkinje fibres
Rate of impulse generation:
SA node > AV node > Bundle of His > Purkinje fibres
15) Spleen is derived from:
a. Ectoderm
b. Mesoderm✔
c. Endoderm
d. Mesoderm and Endoderm
For mnemonics of all the major organs and their origin; click here.
16) Triticum aestivum is:
a. Diploid
b. Triploid
c. Tetraploid
d. Hexaploid✔
Triticum durum is tetraploid wheat and are commonly used to make pasta.
17) Which of the following category is not present in 4 kingdom system of classification?
a. Monera
b. Mycota✔
c. Protista
d. Plantae
2 kingdom system = Plantae, Animalia
3 kingdom system = Protista, Plantae, Animalia
4 kingdom system = Monera, Protista, Plantae, Animalia
5 kingdom system = Monera, Mycota, Protista, Plantae, Animalia
18) Which of the following is false moss?
a. Fox moss✔
b. Bogg moss
c. Copper moss
d. haircap moss
Fox moss is a lichen.
For mnemonic of true moss, click here.
19) Trapdoor mechanism of pollination is present in:
a. Ficus sps.✔
b. Calotropis
c. Salvia
d. Yucca
Calotropis = translator mechanism
Salvia = lever mechanism/turn pipe mechanism
Yucca = Obligate symbiotic relation mechanism
20) Which hormone increases the number of female flowers in cucurbit?
a. Auxin
b. Cytokinin
c. Gibberellin
d. Ethylene✔
Gibberlin produces male flowers in place of female flower in cucurbits. It is antagonistic to ethylene.
21) Plasmodium malariae causes:
a. Benign tertian malaria
b. Malignant tertian malaria
c. Benign sub-tertian malaria
d. Benign quartan malaria✔
Benign tertian malaria = P. vivax
Malignant tertian malaria = P. falciparum
Benign sub-tertian malaria = P. ovale
For its mnemonics, click here.
22) In earthworm, a pair of male genital pores is present in:
a. 18th segment✔
b. 19th segment
c. 20th segment
d. 17/18th segment
Body Parts and Structures |
Located Segments |
---|---|
Digestive system | |
Prostomium | Attached with 1st segment |
Mouth (peristomium) | 1st segment |
Buccal cavity | 2nd -3rd segment |
Pharynx | 3rd-4th segment |
Oesophagus | 5th-7th segment |
Gizzard | 8th-9th segment |
Stomach | 9th-14th segment |
Intestine | 15th-last segment |
Anus | Last segment (pygidium) |
Pre-typhlosolar region | 15th to 25th segments |
Typhlosole | 26th to last except last 23rd or 25th segments |
post-typhlosolar region (rectum) | last 23rd or 25th segment to last |
Reproductive System | |
Clitellum | 14th, 15th and 16th segments |
Male organs | |
Testis(2pairs) | 10th and 11th segments |
Testis sacs (1pairs) | 10th and 11th segments |
Spermiducal funnels (2pairs) | 10th and 11th segments |
Semimal vesicles (2pairs) | 11th and 12th segments |
Vasa deferentia (2pairs) | 10/11th to 18th segments |
Prostate gland (1pairs) | 16/17th to 20/21st segments |
Accessory gland (2pairs) | 17th and 19th segments |
Common prostatic gland (1pairs) | 18th segment |
Male genital pores (1pairs) | 18th segment |
Genital papillae (2pairs) | 17th and 19th segments |
Female organs | |
Ovaries (1pair) | 13th segment |
Oviducal funnels (1pair) | 13th segment |
Oviducts (1pair) | 13th and 14th segments |
Female genital aperture (single) | 14th segment |
Spermathecal pores (4pairs) | 5/6, 6/7, 7/8, 8/9 segments |
Spermathecae (4pairs) | 6th, 7th, 8th, 9th segments |
Circulatory System | |
Lateral hearts (2pairs) | 7th and and 9th segments (1pair in each segment) |
Lateral oesophageal hearts (2pairs) | 12th and 13th segments (1pair in each segment) |
Dorsal blood vessel | 1st to 13th segments (distributive) |
14th to last segments (Collecting) | |
Subneural vessel | 14th to last segments |
Supraoesophageal vessel | 9th to 13th segments |
Anterior loop (2pairs) | 10th and 11th segments (1pair in each segment) |
Blood glands | 4th, 5th and 6th segments |
Lymph glands | 26th to last segments (1pair in each segment) |
Excretory System | |
Septal nephridia | 15th to 2nd last segments |
Integumentary nephridia | 7th to 2nd last segments |
Pharyngeal nephridia | 4th, 5th and 6th segments |
Nervous System | |
Nerve ring | 3rd and 4th segments |
Nerve cord | 5th to last segments |
23) Which of the following is present in frog but absent in human?
a. Salivary gland
b. Jejunum
c. Interventricular septum
d. Renal portal system✔
In human, only hepatic portal system is present. But in frog, both hepatic and renal portal system is present.
24) Semi-essential amino acid is:
a. Isoleucine
b. Arginine✔
c. Proline
d. Aspartic acid
Histidine and arginine are semi-essential amino acids.
25) Macrophage present in skin is:
a. Dust cells
b. Microglia
c. Langerhan's cells✔
d. Mesangial cells
List of macrophages
Blood = Monocytes
CNS = Microglia
Lungs = Dust cells
Liver = Kupfer cells
Lymph nodes and spleen = Histocytes
Skin = Langerhan's cells
Kidney = Mesangial cells
Bone = Osteoclast
For mnemonics of all the tissues and their macrophages, click here.
26) Correct sequence of cell cycle is:
a. S, G1, G2, M
b. G1, S, G2, M✔
c. M, G1, G1, S
d. G2, S, M, G1
G1, S and G2 belongs to interphase and is longest and resting phase.
M is dividing and shortest phase. It contains four sub-phases. They are Prophase, Metaphase, Anaphase and Telophase.
27) Patau syndrome is seen in an individual due to:
a. Trisomy of 13th chromosome✔
b. Trisomy of 18th chromosome
c. Monosomy of sex chromosome (X+0)
d. Trisomy of sex chromosome (XXY)
Sex Chromosome Defects:-
Turner's syndrome = Monosomy (X+0) (44+X)
Klinefelter's syndrome = Trisomy (XXY)(44+XXY)
Super female = Trisomy = (44+XXX)
Somatic Chromosome Defects:-
Patau's Syndrome = trisomy of 13th chromosome
Edward's Syndrome = trisomy of 18th chromosome
Down's Syndrome = trisomy of 21st chromosome
28) Maximum absorption of water takes place from:
a. Meristematic region
b. Zone of cell elongation
c. Zone of cell maturation✔
d. Root cap
Zone of cell maturation have most of the roots and root hairs, so maximum absorption of water takes place through this part.
29) Vegetative reproduction in Agave takes place by:
a. Stolon
b. Offset✔
c. Runner
d. Sucker
Vegetative reproduction through offset is common in hydrophytes like Eichornia, Pistia, etc. But Agave is the terrestrial plant that also reproduce through offset.
30) Axile placentation of ovary with monothecous anther is present in:
a. Solanaceae
b. Malvaceae✔
c. Liliaceae
d. Asteraceae
Axile placentation of overy = @SoMaLiA
Solanaceae, Malvaceae, Liliaceae ➡ Axile
Basal placentation of overy = @BAG
Basal➡Astaraceae, Graminae
Parietal placentation of overy = @PCB
Parietal ➡ Cucurbetaceae, Brassicaceae
Marginal placentation of overy = @MaLe
Marginal = Leguminaceae
Anther is monothecous and bisporongiate in Malvaceae family.
31) Hydra can't digest:
a. Starch✔
b. Protein
c. Fat
d. Lipid
Hydra is carnivorous and the digestion is first extracellular followed by intracellular. Hydra can digest all type of food except starch.
32) Which system is most developed in parasites?
a. digestive system
b. sensory system
c. excretory system
d. reproductive system✔
Locomotory, digestive and sense organs are usually lost or reduced in parasites.
33) Excessive stretching of tendon causes:
a. Strain✔
b. Sprain
c. mockrain
d. migraine
Excessive stretching of ligament = Sprain.
@t = t ➡ tendon = strain
Bone to Muscle is connected by Tendon.
Bone to Bone is connected by Ligament.
@BoMTe - BoBLi
34) Tusks of elephant are:
a. Incisors✔
b. Canines
c. Premolars
d. Molars
In elephants, two incisors of upper jaw grow throughout life and become long and thick tusks.
35) Fertilization of ovum in mammals takes place in:
a. Ovary
b. Uterus
c. Fallopian tube✔
d. Vagina
36) A piece of RNA without capsid is called as:
a. Virion
b. Virusoid
c. Viroid✔
d. Prion
Virion = A fully assembled virus capable of causing infection.
Virusoid = Circular single stranded RNA(s) dependent on virus for replication and encapsidation.
Prion = Piece of misfolded protein without nucleic acid and is infectious in nature.
37) Bacteria containing tuft of flagella at one end is called as:
a. Amphitrichous
b. Cephalotrichous✔
c. Lophotrichous
d. Peritrichous
38) Botanical snake of plant kingdom is:
a. Gymnosperm
b. Pteridophytes✔
c. Bryophytes
d. Thalophytes
Amphibian of plant kingdom = Bryophyta
39) Which compound will be formed in kreb cycle from succinic acid in the presence of succinate dehydrogenase?
a. Malic acid
b. Succinyl Co-A
c. Fumaric acid✔
d. α - ketoglutaric acid
For mnemonics of Kreb cycle: click here.
40) High root to shoot ratio is common in:
a. Hydrophytes
b. Mesophytes
c. Epiphytes
d. Xerophytes✔
For absorption of water from large area and deep layers, roots of xerophytes have to spread highly. This adoptive feature makes the high root to shoot ratio in xerophytes.
Lowest root to shoot ratio is present in hydrophytes.
41) Oil of chenopodium (बेथेको तेल) is used in:
a. typhoid
b. malaria
c. ascariasis✔
d. taeniasis
Oil of Chenopodium, Antipar, Alcopar, Tetrachloro ethylene etc. are used to treat ascariasis.
42) Node of Ranvier is present in:
a. Axon✔
b. Dendrites
c. Cyton
d. Nephrone
Cyton is central cell body of neuron.
Axon is long process from cyton having uniform thickness and is branched only at terminal.
Dendrites is short process from cyton having branches near their base.
43) Occulomoter nerve is:
a. Sensory nerve
b. Motor nerve✔
c. both
d. None
For its mnemonics, click here.
44) Which of the following is not absorbed in Proximal Convoluted Tube?
a. Glucose
b. Amino acid
c. Lactic acid
d. Fatty acid✔
In PCT of nephrone; Glucose, Lactic acid, Amino acids, Vitamins, water and other nutrients are absorbed except fatty acids.
For its mnemonics; click here.
45) Most successful type of kidney transplant is:
a. Autograft
b. Isograft✔
c. Allograft
d. Xenograft
Order of success of graft transplant is:
Autograft Isograft Allograft Xenograft
In case of kidney transplant, autograft is not possible. So isograft is said as most successful transplant.
46) Which of the following character of pea plant is not included in Mendel cross experiment?
a. Shape of pod
b. Position of flower
c. Shape of seed
d. Seed number in pod✔
List of characters of pea included by mendel in his cross:
▶ Shape of seed
▶ Colour of seed
▶ Position of flower
▶ Height of plant
▶ Shape of pod
▶ Colour of pod
▶ Colour of flower
47) Holotism relationship is present in:
a. Fungi
b. Algae
c. Bacteria
d. Lichen✔
Holotism relation is like the relationship between master and slave. In case of lichen, fungi acts as master and algae acts as slave.
48) Inulin (a water soluble polysaccharide) is present in the root of:
a. Potato
b. Ginger
c. Dahlia✔
d. Chrysanthemum
49) Which of the following is plantless root?
a. Wolffia
b. Cuscuta
c. Utricularia
d. Monotrapa✔
For mnemonics of plantless root and rootless plant, click here.
50) What happens if pure water is used in saline bottle instead of saline water and injected to blood?
a. RBC will brust due to endosmosis.✔
b. RBC will constrict due to exosmosis.
c. Blood will coagulate due to water pressure.
d. Nothing will happen.
In saline water bottle, 0.9% concentration of salt water is present which is isotonic with blood.
If the blood is mixed with pure water, the RBCs increase in volume and brust. This is called as haemolysis. The remaining part of RBC is called as ghost cells.
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