Identify the incorrect comparison of Kwashiorkor and Marasmus:
|
|
Kwashiorkor |
Marasmus |
1. |
Cause |
Protein deficiency with adequate energy intake |
Inadequate energy intake in all forms, including protein |
2. |
Age incidence |
Increases after 18 months |
Prior to age 1 |
3. |
Main clinical sign |
Muscular wasting and loss of subcutaneous fat |
Edema and ascites [abnormal buildup of fluid in the abdomen] |
4. |
Fatty infiltration in liver |
Common |
Not common |
Consider the following traits:
I. Tripartite body division
II. Diverticulum of foregut, stomochord
III. Deuterostome embryonic development
An animal that can show all these traits can be:
1. | Ascidia | 2. | Branchiostoma |
3. | Asterias | 4. | Balanoglossus |
Identify the incorrectly matched pair:
1. |
Total number of vertebro-sternal ribs in humans |
14 |
2. |
Total number of cervical vertebrae in Giraffe |
7 |
3. |
Total number of bones in human appendicular skeleton |
80 |
4. |
Total number of bones in human skull |
22 |
An important feature of bryophytes is that the embryonic development of the zygote takes place in the:
1. Sporangium | 2. Archegonium |
3. Protonema | 4. Antheridium |
If you compare with the normal ECG tracing given in your NCERT, the following ECG shows an abnormal:
1. P wave 2. R wave 3. S wave 4. T wave |
The members of Kingdom Monera and Kingdom Protista in Whittaker’s five kingdom classification resemble each other in:
1. | Cell type | 2. | Body organization |
3. | Nature of cell wall | 4. | Nuclear membrane |
If a plant species has vertically oriented leaves, its mesophyll is expected to be:
1. divided into well differentiated spongy and palisade layers
2. divided into well differentiated spongy layer but less differentiated palisade layer
3. divided into less differentiated spongy layer but well differentiated palisade layer
4. not divided into spongy and palisade layers
Translocation in phloem always occurs from:
1. Sugar source to a sugar sink
2. Sugar sink to a sugar source
3. Leaf to a root
4. Leaf to xylem and then to phloem
Consider the following statements:
I. Lion, leopard and tiger belong to same genus
II. Lion, leopard, tiger and cats belong to same family
III. Lion, leopard, tiger, cats and dogs belong to same order
This implies that:
1. Cats and dogs are more closely related to each other than cats and leopards
2. Lions share maximum characteristics with dogs
3. Lion, leopard and tiger are capable of interbreeding and producing fertile offspring
4. Lion, leopard, tiger, cats and dogs may belong to the same class in taxonomic hierarchy
If a plant cell immersed in distilled water has a Ψs of -0.7 Mpa and a Ψw of 0 MPa, what is the cell’s Ψp?
1. 0 Mpa | 2. -0.3 Mpa |
3. +0.7 MPa | 4. -0.7 MPa |
In the citric acid cycle, a molecule of GTP is formed during the conversion of:
1. - ketoglutarate to Succinyl-CoA
2. Succinyl-CoA to succinate
3. Succinate to fumarate
4. Fumarate to malate
An excessive loss of fluid from the body can activate the osmoreceptors leading to the secretion of:
1. Angiotensinogen from the liver
2. ADH from the hypothalamus
3. Renin from the juxtaglomerular cells
4. Aldosterone from the adrenal cortex
Identify the incorrectly matched pair:
1. Lichens: mutualistic symbiosis between an alga and a fungus
2. Prions: abnormally folded infectious proteins
3. Viroids: infectious, free low molecular weight RNA
4. Viruses: infectious nucleoprotein with both DNA and RNA
Tetany is caused by:
1. low levels of Ca++ in body fluids
2. high levels of Ca++ in body fluids
3. low levels of K+ in body fluids
4. high levels of K+ in body fluids
Match the scientists given in Column I with their contribution in understanding the process of photosynthesis in Column II and select the correct answer from the codes given below:
COLUMN I | COLUMN II | ||
(A) | Jan Ingenhousz | (a) | Only green parts of the plant are capable of photosynthesis |
(B) | F. F. Blackman | (b) | Enzymes must carry out light independent reaction |
(C) | C. B. van Neil | (c) | Oxygen comes from water and not from carbon dioxide |
(D) | T. W. Engelmann | (d) | First action spectrum of photosynthesis |
Codes
(A) | (B) | (C) | (D) | |
1. | (a) | (b) | (c) | (d) |
2. | (b) | (a) | (d) | (c) |
3. | (a) | (b) | (d) | (c) |
4. | (b) | (a) | (c) | (d) |
Identify the incorrect statement regarding Eubacteria:
1. Cyanobacteria can fix atmospheric nitrogen in specialized cells called heterocysts
2. Chemosynthetic autotrophic bacteria play a great role in recycling nitrogen and phosphorus
3. Heterotrophic bacteria are the only bacteria that do not include any economically useful microbe for humans
4. Mycoplasma lack cell wall and can survive without oxygen
The given diagram shows the arrangement of myofilaments on the myofibril in a skeletal muscle. During muscle contraction the part that does not change in length is labeled as:
1. 1
2. 2
3. 6
4. 7
A cell at G1 phase has a chromosome content 2C and DNA amount 2N. What will be the chromosome content and amount of DNA in this cell at telophase of mitosis?
1. 2C and 2N
2. 2C and 4N
3. 4C and 2N
4. 4C and 4N
What will be common to all animals given in the box?
Ornithirhynchus, Struthio, Neophron, Pteropus, Macropus, Aptenodytes |
1. Oviparity
2. Indirect development
3. Homeothermy
4. Skin with large number of glands
At which stage of the cell cycle is the cell shown in the given diagram?
1. G1 | 2. S |
3. G2 | 4. M |
Which term includes all others given below in the options?
1. Phellogen
2. Phellem
3. Periderm
4. Phelloderm
Which of the following pairs are correctly matched?
I. Epipetalous stamen: Brinjal
II. Diadelphous stamen: China rose
III. Syncarpous ovary: Mustard
IV. Basal placentation: Sunflower
1. | Only I, II and III | 2. | Only I, III and IV |
3. | Only II, III and IV | 4. | I, II, III and IV |
Identify the incorrect comparison between C3 and C4 photosynthetic plants:
Characteristic | C3 plants | C4 plants | |
1. | Chloroplasts | One type [only granal] | Two types [granal and agranal] |
2. | Photorespiration | High | Negligible |
3. | First CO2 fixation product | 3-PGA | OAA |
4. | Carboxylase enzyme | Only RuBisCO | Only PEPcase |
If the centromere is located close to an end of a chromosome, the chromosome is said to be:
1. | Metacentric | 2. | Sub-metacentric |
3. | Acrocentric | 4. | Telocentric |
Match each item in COLUMN I [Protist] with one in COLUMN II [Characteristic] and select your answer from the codes given:
|
COLUMN I |
|
COLUMN II |
A. |
Chrysophytes |
a. |
Pellicle |
B. |
Dinoflagellates |
b. |
Plasmodium |
C. |
Euglenoids |
c. |
Red tides |
D. |
Slime moulds |
d. |
Chief producers in oceans |
Codes
A B C D
1. d c a b
2. d c b a
3. c d a b
4. c d b a
Match the parts of the nephron in Column I with function/feature in Column II and select the answer from the codes given:
COLUMN I | COLUMN II | ||
A. | PCT | a. | Maximum reabsorption of water and electrolytes |
B. | Loop of Henle - descending limb | b. | Permeable to water but almost impermeable to electrolytes |
C. | Loop of Henle - ascending limb | c. | Impermeable to water but permeable to electrolytes |
D. | DCT | d. | Conditional reabsorption of Na+ and water |
Codes
A | B | C | D | |
1. | a | b | c | d |
2. | b | a | d | c |
3. | a | b | d | c |
4. | b | a | d | c |
You discover a new fungus. On careful examination you find that the mycelium is septate and branched, they reproduce asexually by conidia and you cannot identify any sexual stage in its life cycle. To which fungal class would you place this fungus?
1. Phycomycetes | 2. Ascomycetes |
3. Basidiomycetes | 4. Deuteromycetes |
A secondary metabolite and an alkaloid that is used as a powerful analgesic in certain very painful clinical conditions is:
1. Vinblastin
2. Abrin
3. Concanavalin A
4. Morphine
Nitrogen fixing nodules on the roots of actinorhhizal [non-leguminous] plants is produced during biological nitrogen fixation by:
1. Rhizobium
2. Rhodospirillum
3. Frankia
4. Anabaena
Consider the given statements:
I. A homosporous life history occurs in nearly all bryophytes and in most pteridophytes.
II. A heterosporous life history occurs in some pteridophytes and in all seed plants.
III. Heterosporous pteridophytes, unlike their homosporous counterparts, lack archegonia, antheridia, and motile flagellate sperm.
IV. The seed plants completely lack antheridia.
The correct statements include:
1. Only I, II and III
2. Only I, II and IV
3. Only II, III and IV
4. I, II, III and IV
Identify the correct statements amongst the following:
I. Auxins and cytokinins act antagonistically in regulating axillary bud growth
II. Gibberellins act in concert with auxin to promote stem elongation
III. In most situations, Abscisic acid acts as an antagonist to gibberellins.
1. I and II only
2. I and III only
3. II and III only
4. I, II and III
The malfunction of which of the following cells in gastric mucosa can lead to the development of pernicious anemia?
1. Parietal cells
2. Chief cells
3. G cells
4. Enterochromaffin like cells
Match the parts of the human brain in Column I with function in Column II and select the answer from the codes given:
COLUMN I | COLUMN II | ||
A. | Medulla oblongata | a. | Coordinating center for sensory and motor signaling |
B. | Thalamus | b. | Regulation of gastric secretions |
C. | Hypothalamus | c. | Thermoregulation and osmoregulation |
D. | Hippocampus | d. | Consolidation of short term memory into long term memory |
Codes
A | B | C | D | |
1. | a | b | c | d |
2. | b | a | d | c |
3. | a | b | d | c |
4. | b | a | c | d |
All the following are modifications of leaves except:
1. Tendrils in Pea
2. Spine in Opuntia
3. Phylloclade in Australian Acacia
4. Pitcher in Nepenthes
Which of the following will not be true for members of Rhodophyceae?
1. | Major pigments | Chlorophyll a, d, phycoerythrin |
2. | Stored food | Floridean starch |
3. | Cell wall | Cellulose and algin |
4. | Flagellar number and insertions | Absent |
Identify the incorrect statement:
1. Neutrophils and monocytes are main phagocytic cells
2. Eosinophils and basophils are involved in allergic reactions
3. B and T lymphocytes are responsible for adaptive [acquired] immunity
4. Neutrophils are the commonest and eosinophils are the rarest WBCs
The floral diagram shown in the given figure can represent the flowers of:
1. Sun hemp
2. Mustard
3. Belladonna
4. Tulip
How many molecules of ATP are directly synthesized in the glycolysis pathway from one glucose molecule?
1. | 2 | 2. | 4 |
3. | 6 | 4. | 10 |
Which of the following statements are correct?
I. Most gymnosperms lack vessels in their xylem
II. Most gymnosperms lack sieve cells and albuminous cells
III. Most monocotyledonous plants lack phloem parenchyma
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
The movement of water through the root layers is ultimately symplastic in the:
1. Outer cortex | 2. Endodermis |
3. Pericycle | 4. Xylem |
Identify the plant growth regulator that is not correctly matched to its chemical nature in the following given options:
|
PGR |
Chemical nature |
1. |
Ethylene |
Gaseous |
2. |
Adenine derivatives |
Kinetin |
3. |
Indole compounds |
Auxins |
4. |
Terpenes |
Abscisic acid |
Match each item in Column I with one in Column II and select the correct answer from the codes given below:
|
COLUMN I |
|
COLUMN II |
A. |
Tonoplast |
a. |
Vacuole |
B. |
Acid hydrolases |
b. |
Lysosome |
C. |
rRNA synthesis |
c. |
Nucleolus |
D. |
Calcium pectate |
d. |
Middle lamella of plant cell wall |
Codes
A B C D
1. a b c d
2. b a d c
3. a b d c
4. b a c d
Which gastrointestinal hormone acts on the exocrine pancreas and stimulates secretion of water and bicarbonate ions?
1. Gastrin | 2. Secretin |
3. Cholecystokinin | 4. Gastric inhibitory peptide |
Macromolecules and polymers synthesized by ‘dehydration synthesis’ include all the following except:
1. | Fats | 2. | Carbohydrates |
3. | Proteins | 4. | Nucleic acids |
Find the correct match of the position of floral parts on thalamus of the given flower:
1. I: Hypogynous; II: Perigynous; III: Epigynous
2. I: Epigynous; II: Perigynous; III: Hypogynous
3. I: Hypogynous; II: Epigynous; III: Perigynous
4. I: Perigynous; II: Hypogynous; III: Epigynous
An organelle is seen to possess a single circular chromosome DNA molecule, a few RNA molecules, 70s ribosomes and divides by fission. This organelle can be either:
1. Endoplasmic reticulum or Golgi apparatus
2. Mitochondria or Chloroplast
3. Endoplasmic reticulum or Mitochondria
4. Golgi apparatus or Chloroplast
In the seeds of cereals, the outer covering of endosperm separates the embryo by a proteinaceous layer called as:
1. | Aleurone | 2. | Perisperm |
3. | Scutellum | 4. | Replum |
Which of the following does not occur during meiosis?
1. Pairing of homologous chromosomes
2. Exchange of segments between non sister chromatids of homologous chromosomes
3. DNA replication in interkinesis
4. Reduction in chromosome number
Match the feature [Column I]with phylum [Column II] and select the correct answer from the codes given:
COLUMN I | COLUMN II | ||
A. | Water transport canal system | a. | Echinodermata |
B. | Water vascular system | b. | Porifera |
C. | Metagenesis | c. | Annelida |
D. | Metamerism | d. | Cnidaria |
Codes
A | B | C | D | |
1. | a | b | c | d |
2. | b | a | d | c |
3. | a | b | d | c |
4. | b | a | c | d |
The following diagram shows the section of a certain organelle. The correct function of this organelle will be:
1. Locomotion in bacterial cell
2. Locomotion in eukaryotic cell
3. Formation of spindle in plant cells
4. Formation of spindle in animal cells
Which of the following will bring about inhalation in human beings?
I. Contraction of diaphragm
II. Contraction of internal intercostals
III. Contraction of external intercostals
1. | Only I and II | 2. | Only I and III |
3. | Only II and III | 4. | I, II and III |
In the cohesion-tension-transpiration pull model, the upward pull of water is transmitted to other water molecules by cohesion which is caused by:
1. Hydrogen bonds | 2. Hydrophilic cell walls |
3. Turgor pressure | 4. Osmosis |
In the given diagram of human eye showing retina, the parts labeled as A and B have high visual acquity and they respectively are called as:
1. Blind spot and macula lutea
2. Macula lutea and fovea centralis
3. Fovea centralis and macula lutea
4. Macula lutea and blind spot
The activities of the human heart can be regulated through the autonomic nervous system by a special neural center located in:
1. | Medulla oblongata | 2. | Hypothalamus |
3. | Mid brain | 4. | Cerebrum |
Which of the following is not true regarding comparison between the gymnosperms Pinus and Cycas?
Character | Pinus | Cycas | |
1. | Root symbiotic association | Mycorrhiza | Cyanobacteria |
2. | Stem | Branched | Unbranched |
3. | Reproductive parts | Dioecious | Monoecious |
4. | Scale leaves | Fall off as branches mature | Persistent, protective |
Which mouth part of cockroach acts as a tongue?
1. Labrum
2. Labium
3. Hypopharynx
4. Maxilla
The amino acid tryptophan is the precursor of:
1. Thyroxin
2. Melatonin
3. Nor-adrenaline
4. Prolactin
Identify the incorrectly matched pair:
1. |
Hypersecretion of growth hormone in adults |
Gigantism |
2. |
Hyposecretion of adrenal cortex hormones |
Addison’s disease |
3. |
Hyposecretion of ADH |
Diabetes insipidus |
4. |
Hypersecretion of iodothyronines |
Graves disease |
The gross calorific value for carbohydrates is:
1. 4.0 kcal/g
2. 4.1 kcal/g
3. 5.65 kcal/g
4. 9.45 kcal/g
Which of the following clinical feature is unlikely to be seen in hypothyroidism?
1. A decrease in basal metabolic rate
2. Mental retardation and growth retardation of baby if pregnant female is affected
3. Exopthalmic goiter
4. Irregular menstrual cycles in adult women
Identify the incorrectly matched pair:
1. |
Ureotelism |
Marine fishes |
2. |
Ammonotelism |
Many bony fishes |
3. |
Protonephridia |
Amphioxus |
4. |
Prawn |
Malpighian tubules |
In cyclic photophosphorylation, the primary electron acceptor is:
1. Iron-sulfur protein
2. Ferredoxin
3. Plastocyanin
4. Pheophytin
The electron transport system [ETS] in mitochondria is present in:
1. The outer membrane
2. The inner membrane
3. Inter-membrane space
4. Matrix
Identify the incorrect statement:
1. | At the root tip, hairs are found in the region of maturation |
2. | Prop roots are the supporting roots seen in maize and sugarcane |
3. | Respiratory roots, pneumatophores are seen in Rhizophora growing in swampy areas |
4. | Adventitious roots in sweet potato get swollen and store food |
Identify the incorrectly matched pair:
Location in human body |
Type of epithelium |
|
1. |
Trachea |
Pseudostratified columnar ciliated |
2. |
Urinary bladder |
Transitional |
3. |
Proximal convoluted tubule |
Simple columnar brush bordered |
4. |
Non hairy skin (as in palm) |
Stratified squamous keratinized |
If we plot the parameter of growth against time for a living organism growing in a natural environment, the shaped of the curve is expected to be:
1. | Linear | 2. | Rectangular hyperbola |
3. | Sigmoid | 4. | Bell shaped |
All the following are examples of secondary or lateral meristems except:
1. Fascicular vascular cambium
2. Interfascicular cambium
3. Cork cambium
4. Intercalary meristem
Consider the diagram of the human heart with various parts labeled as numbers. All statements given will be correct except:
1. Simultaneous closure of 3 and 6 produces first heart sound
2. Simultaneous closure of 2 and 8 produces second heart sound
3. 5 pumps more blood than 4 as it has thicker musculature
4. Both 1 and 7 receive venous blood
Consider the given two statements:
I. Starch turns into an intense "blue-black" colour upon addition of aqueous solutions of the triiodide anion
II. Starch does not form secondary helical structures
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. Both I and II are incorrect
Which of the following is not a correct difference between members of Chondrichthyes and Osteichthyes?
Feature | Chondrichthyes | Osteichthyes | |
1. | Operculum | Absent | Present |
2. | Scales | Placoid | Cycloid/Ctenoid |
3. | Swim bladder | Absent | Present |
4. | Mouth | Mostly terminal | Located ventrally |
The following diagram may represent the life cycle of:
1. Fucus | 2. Ectocarpus |
3. Polysiphonia | 4. Spirogyra |
All the following are examples of competitive enzyme inhibition except:
1. Sulfa drugs used as antibacterial agents
2. Ethyl alcohol used in methyl alcohol poisoning
3. Malonate inhibiting succinic dehydrogenase enzyme
4. Glucose 6 phosphate inhibiting hexokinase in brain
Which of the following is not a macronutrient required by plants?
1. Sulfur
2. Potassium
3. Calcium
4. Iron
Each time the sodium potassium pump functions, it pumps:
1. 3 Na+ ions to the inside and 2 K+ ions to the outside
2. 3 Na+ ions to the outside and 2 K+ ions to the inside
3. 2 Na+ ions to the inside and 3 K+ ions to the outside
4. 2 Na+ ions to the outside and 3 K+ ions to the inside
The type of synovial joint seen at the carpal and the metacarpal of thumb is called as:
1. Gliding or plane joint
2. Pivot joint
3. Saddle joint
4. Condyloid joint
The given graph shows the pulmonary volumes of a healthy man recorded on spirometer.
Which of the following would be correct?
1. D can be exhaled only after maximum expiratory efforts
2. The value of B will be different for inhalation and exhalation
3. The amount of air remaining in lungs after a normal exhalation is C + D
4. Total lung capacity cannot be calculated from this graph as it includes residual volume
All the following are favorable for the formation of oxyhemoglobin at the lungs except:
1. | High PO2 | 2. | Low PCO2 |
3. | Low temperature | 4. | Low pH |
Arrange the following events in the correct chronological order of their occurrence [earliest to last] during hearing of a sound in humans:
I. Foot plate of stapes transmits vibrations to perilymph in scala vestibuli
II. Nerve impulse generated in associated afferent neurons
III. Ripple induced in basilar membrane
IV. Hair cells bend against tectorial membrane
V. Recognition by the auditory cortex
1. I – II – IV – III – V | 2. I – III – II – V – V |
3. I – III – IV – II – V | 4. III – I – IV – V – II |
In the given diagram of areolar connective tissue, the structure responsible for the release of mediators of inflammation is shown by the letter:
1. A
2. B
3. C
4. D
Mesosomes, extensions of plasma membrane into the cell, help bacterium in all the following processes except:
1. | Photosynthesis in cyanobacteria | 2. | Respiration |
3. | DNA replication | 4. | Cell wall formation |
Which of the following hormones does not act on its target cells through a second messenger?
1. Adrenocorticotrophic hormone
2. Aldosterone
3. Thyrocalcitonin
4. Atrial natriuretic factor
Match the plants in Column I with the description of anatomy of vascular bundles in them in Column II and select the correct option from the codes given:
Column I |
Column II |
A. Dicot stem |
a. Collateral, closed and scattered in ground tissue |
B. Monocot stem |
b. Conjoint, collateral endarch and open |
C. Dicot root |
c. Radial, exarch and polyarch [usually more than 6] |
D. Monocot root |
d. Radial, exarch and 2 to 6 in number |
Codes
A | B | C | D | |
1. | a | b | c | d |
2. | b | a | d | c |
3. | a | b | d | c |
4. | b | a | c | d |
Pulmonary fibrosis is a characteristic feature of all cases of:
1. | Occupational lung diseases | 2. | Bronchial asthma |
3. | Emphysema | 4. | Pneumonia |
In animal cells, lipid-like steroidal hormones are synthesized in:
1. Smooth Endoplasmic reticulum
2. Rough Endoplasmic reticulum
3. Golgi apparatus
4. Mitochondria
Identify the incorrectly matched pair:
Biomolecule |
Function |
|
1. |
Main structural component of cell membranes |
|
2. |
Precursor of steroidal hormones in animals |
|
3. |
Structural component of DNA |
|
4. |
Synthesis of iodothyronines |
The deficiency symptoms of iron, magnesium and calcium in plants may actually be the symptoms of toxicity of:
1. Molybdenum
2. Manganese
3. Boron
4. Zinc
Identify the incorrectly matched pair:
|
Stage of Prophase-I |
Event |
1. |
Zygotene |
Synapsis |
2. |
Pachytene |
Crossing over |
3. |
Diplotene |
Appearance of chiasmata |
4. |
Diakinesis |
Centralization of chiasmata |
When the kidneys are eliminating a concentrated urine, NaCl is returned to the medullary interstitium by:
1. Thick segment of ascending limb of loop of Henle
2. Thin segment of ascending limb of loop of Henle
3. Ascending limb of the vasa recta
4. Descending limb of the vasa recta
If the chloroplasts are illuminated by sunlight, where do you expect to find the pH to be lowest?
1. Stroma
2. Intermembrane space [between outer and inner membranes]
3. Space enclosed by thylakoid membranes
4. Cytosol
The following diagram shows the alimentary canal of Periplaneta americana. Identify the incorrectly matched pair:
1. |
A |
Storing the food |
2. |
B |
Absorption of food |
3. |
C |
Secretion of digestive enzymes |
4. |
D |
Excretion and osmoregulation |