Glucose is absorbed in the small intestine and from the lumen passes first to epithelial cell and then to the blood. What would be true regarding absorption of glucose?
1. It enters from the epithelial cell to the blood vessel against its concentration gradient
2. The movement of glucose from the lumen into the epithelial cell requires a facilitated transport protein
3. The movement of glucose from the lumen into the epithelial cell requires an active transport protein and an energy source
4. The movement of glucose from the epithelial cell into the blood vessel requires an active transport protein and an energy source
Identify the incorrect statement:
1. The human skull is monocondylic
2. The human ribs are bicephalic
3. The human mandible is craniostylic
4. Patella is a sesamoid bone
Sterols, hydrocarbons and waxes can be eliminated through:
1. | Saliva | 2. | Sweat |
3. | Sebum | 4. | Tears |
Under normal resting conditions, almost all respiratory effort is due to:
1. contraction and relaxation of diaphragm
2. elevation of rib cage
3. depression of rib cage
4. contraction of abdominal muscles
RBCs are the most common cells in human body and have a shape of a biconcave disc that:
1. decreases the distance between the cell membrane and hemoglobin molecules, facilitating oxygen uptake
2. allows the cells to hold more hemoglobin for a given volume
3. allows them to squeeze through the tight spaces in the spleen
4. keeps them from leaking out through the walls of capillaries
Which layer of the human eyeball forms the ciliary body?
1. Sclera | 2. Choroid |
3. Retina | 4. Cornea |
Match each item in Column I [part of the brain] with one in COLUMN II [function] and select the answer from the codes given below:
|
Column I |
|
Column II |
A. |
Amygdala |
a. |
Relays motor and sensory signals to the cerebral cortex |
B. |
Hippocampus |
b. |
Reflex centers involving vision and hearing |
C. |
Thalamus |
c. |
Plays a key role in the processing of emotions |
D. |
Corpora quadrigemina |
d. |
Formation of new memories and is also associated with learning and emotions |
Codes
A | B | C | D | |
1. | c | d | b | a |
2. | d | c | a | b |
3. | c | d | a | b |
4. | d | c | b | a |
The process of delivery of the fetus [childbirth] is called as:
1. | Gestation | 2. | Implantation |
3. | Insemination | 4. | Parturition |
The days of the menstrual cycle during which coitus is avoided in periodic abstinence are:
1. First 10 days
2. Days 10 to 17
3. Day 13 and 14
4. Last 7 days
LH surge:
1. | is a dramatic sudden increase in the levels of LH during the early part of menstrual cycle and is responsible for ovulation |
2. | is a dramatic sudden decrease in the levels of LH during the early part of menstrual cycle and is responsible for ovulation |
3. | is a dramatic sudden decrease in the levels of LH during the mid-menstrual cycle and is responsible for ovulation |
4. | is a dramatic sudden increase in the levels of LH during the mid-menstrual cycle and is responsible for ovulation |
Match each item in COLUMN I [Hormone] with one in COLUMN II [Stimulus for release] and select your answer from the codes given:
COLUMN I | COLUMN II | ||
A. | ADH | a. | Dehydration, increased blood osmolarity, decreased GFR |
B. | Aldosterone | b. | A rise in plasma potassium level |
C. | Cholecystokinin | c. | Fat rich chyme in stomach |
D | Erythropoietin | d. | Tissue hypoxia |
Codes
A | B | C | D | |
1. | a | b | c | d |
2. | a | b | d | c |
3. | b | a | d | c |
4. | b | a | c | d |
The following diagram shows
1. Formation of sperms from spermatogonia
2. Protein synthesis apparatus in eukaryotic cells
3. The endomembranous system of eukryotic cells
4. The cytoskeleton of a Moneran cell
What stage of the cell division is shown in the following diagram of a cell undergoing cell division?
1. | Prophase I | 2. | Prophase II |
3. | Telophase I | 4. | Telophase II |
The following diagram depicts the structure of a:
1. Nucleoside | 2. Nucleotide |
3. Nitrogen containing monosaccharide | 4. Glycoprotein |
In paddy fields, important biofertilizers are:
1. | Cyanobacteria | 2. | Rhizobium |
3. | Frankia | 4. | Glomus |
If you want to isolate DNA in pure form from a fungal cell, the first enzyme required normally would be:
1. | Restriction endonuclease | 2. | DNA ligase |
3. | DNA polymerase | 4. | Chitinase |
The change in allele frequencies that occurs over time within a population is called as:
1. microevolution, or adaptive evolution
2. macroevolution, or speciation
3. coevolution
4. phylogenetic evolution
The extinct reptilian lineage that evolved into dinosaurs and later on the birds is:
1. | Pelycosaurs | 2. | Synapsids |
3. | Tuataras | 4. | Thecodonts |
Match each item in Column I with one in Column II and select the answer from the codes given below:
COLUMN I |
COLUMN II |
||
A |
First genetically modified crop |
a |
Antibiotic-resistant tobacco plant |
B |
First genetically modified food |
b |
Flavr Savr |
C |
First genetically modified animal approved for food use |
c |
AquAdvantage Salmon |
D |
First genetically modified animal to be commercialized |
d |
GloFish |
Codes :
A | B | C | D | |
1. | a | b | c | d |
2. | a | b | d | c |
3. | b | a | c | d |
4. | b | a | d | c |
Which one of the following combinations would a sugarcane farmer look for in the sugarcane crop?
1. | Thick stem, long internodes, high sugar content, and disease resistant |
2. | Thick stem, high sugar content, and profuse flowering |
3. | Thick stem, short internodes, high sugar content, disease resistant |
4. | Thick stem, low sugar content, disease resistant |
In E.coli, the lac operon gets switched on when:
1. lactose is present and it binds to the repressor
2. repressor binds to operator
3. RNA polymerase binds to the operator
4. lactose is present and it binds to RNA polymerase
SNPs in human genome are located at about:
1. 1.4 million locations
2. 1.7 million locations
3. 2.1 million locations
4. 2.4 million locations
Male pattern baldness is a ___________ trait.
1. | Sex-linked | 2. | Sex-limited |
3. | Sex-influenced | 4. | Y-linked |
Double fertilization is:
1. | Seen in some flowering plants |
2. | In seen in many flowering plants |
3. | Is seen in both flowering and non-flowering plants |
4. | Is a unique event of flowering plants |
Which of the following is not used by flowering plants as an outbreeding device?
1. | Lack of synchronization between pollen release and stigma receptivity. |
2. | Anther and Stigma placed at different levels. |
3. | Self-incompatibility. |
4. | Production of bisexual flowers. |
Which of the following is not a characteristic of HIV?
1. It mutates rapidly developing new strains.
2. It is retrovirus with two short strands of ss RNA
3. It cannot pass through blood brain barrier
4. It has the unique ability to destroy helper T cells
When Morgan hybridised yellow-bodied, white-eyed females to brown-bodied, red-eyed males and intercrossed their F1 progeny, the F2 ratio deviated very significantly from the 9:3:3:1 ratio. This can be attributed to the fact that:
1. | The genes are located on the X and Y chromosomes. |
2. | Fruit fly has abnormal chromosomes. |
3. | The genes are located on the X chromosome. |
4. | The genes exhibit incomplete dominance. |
The Kingdom that contains both Autotrophic and Heterotrophic organisms is:
1. Fungi
2. Protista
3. Plantae
4. Animalia
Identify the incorrect statement:
1. | As compared to the bryophytes, pteridophytes have sporophyte as the main plant body |
2. | Pteridophyte sporophyte has well differentiated true roots, stem and leaves |
3. | Selaginella has macrophylls like ferns |
4. | In sporophyte of ferns, leaf-like appendages called sporophylls subtend sporangia |
Agaricus, Ustilago and Puccinia belong to the class:
1. | Phycomycetes | 2. | Ascomycetes |
3. | Basidiomycetes | 4. | Deuteromycetes |
Which of the following would best describe a virus?
1. Non cellular organization, crystalline inert structure in a living cell
2. Non cellular organization, crystalline inert structure outside a living cell
3. Cellular organization, crystalline inert structure in a living cell
4. Cellular organization, crystalline inert structure outside a living cell
Which of the following organisms, earlier placed in Animal Kingdom, is placed under Kingdom Protista in Whittaker’s classification?
1. | Ameoba proteus | 2. | Chlamydomonas |
3. | Gonyaulax | 4. | Chlorella |
The exoskeletal plates in the exoskeleton of cockroach are joined to each other by:
1. Proteinaceous pellicle | 2. Arthrodial membrane |
3. Ligament | 4. Cellulose threads |
In having external fertilization and indirect development, amphibians differ from all other:
I. Tetrapods
II. Gnathostomatans
III. Vertebrates
1. Only I
2. Both I and II
3. Only II
4. I, II and III
A vessel less piece of stem possessing prominent sieve tubes would belong to
1. Pines
2. Eucalyptus
3. Grass
4. Trachodendron
Match the followings and choose the correct option :
Group A | Group B | ||
A. | Aleurone layer | i. | without fertilization |
B. | Parthenocarpic fruit | ii. | Nutrition |
C. | Ovule | iii. | Double fertilization |
D. | Endosperm | iv. | Seed |
Options:
A | B | C | D | |
1. | i | ii | iii | iv |
2. | ii | i | iv | iii |
3. | iv | ii | i | iii |
4. | ii | iv | i | iii |
Cyanobacteria are classified under
1. Protista | 2. Plantae |
3. Monera | 4. Algae |
The term ‘peripheral endosperm’ in monocotyledonous seeds normally refers to:
1. | Epicarp | 2. | Pericarp |
3. | Aleurone layer | 4. | Starchy endosperm |
In Amphibia:
I: | Skin is moist without scales |
II: | A tympanum represents the ear |
III: | Fertilization is external |
1. | Only I and II are correct | 2. | Only I and III are correct |
3. | Only II and III are correct | 4. | I, II, and III are correct |
Which one of the following organisms reproduces sexually only once in its lifetime?
1. | Banana | 2. | Mango |
3. | Tomato | 4. | Eucalyptus |
In the textbook you came across “Three Mile Island and Chernobyl disasters associated with accidental leakage of radioactive wastes.” In India, we had Bhopal gas tragedy. It is associated with which of the following?
1. | CO2 | 2. | Methyl Isocyanate |
3. | CFC | 4. | Methyl Cyanate |
In an algal bloom, the cause of death of other algae is usually:
1. toxins
2. decreased DO
3. decreased sunlight
4. decreased nutrients
Slash and burn agriculture leads to nutrient-depleted soils and deforestation if:
1. crash crops are implanted rather than cereals
2. it is practiced in a sufficiently larger area
3. some useful trees are retained by the farmers
4. sufficient time is not allowed for the land to recover
What is common to the techniques (i) in vitro fertilization, (ii) Cryo preservation, and (iii) tissue culture?
1. All are in situ conservation
2. All are ex situ conservation methods
3. All require ultra-modern equipment and large space.
4. All are methods of conservation of extinct organisms.
Which of the following is an ecosystem service provided by a natural ecosystem?
1. | Cycling of nutrients |
2. | Prevention of soil erosion |
3. | Pollutant absorption and reduction of the threat of global warming |
4. | All of the above |
Ecological succession is:
1. gradual and predictable
2. gradual and unpredictable
3. sudden and predictable
4. sudden and unpredictable
The Verhulst – Pearl equation represents what type of population growth?
1. | Exponential | 2. | Logistic |
3. | Decline | 4. | Stable |
Match the following and choose the correct option from those given below.
Column A | Column B | ||
A. | Molecular oxygen | i. | \(\alpha\)-Ketoglutaric acid |
B. | Electron acceptor | ii. | Hydrogen acceptor |
C. | Pyruvate dehydrogenase | iii. | Cytochrome C |
D. | Decarboxylation | iv. | Acetyl CoA |
Options :
A | B | C | D | |
1. | ii | iii | iv | i |
2. | iii | iv | ii | i |
3. | ii | i | iii | iv |
4. | iv | iii | i | ii |
The enzyme that is not found in a plant is
1. RuBP Carboxylase
2. PEP Carboxylase
3. NADP reductase
4. ATP synthase
Mark the mismatched pair :
1. Amyloplast |
i. Store protein granule |
2. Elaioplast |
ii. Store oils or fats |
3.Chloroplasts |
iii. Contain chlorophyll pigments |
4. Chromoplasts |
iv. Contain coloured pigments other than chlorophyll |
Match the items given in Column I with those in Column II and select the correct option given below:
Column I | Column II | ||
(a) | Proliferative Phase | (i) | Breakdown of the endometrial lining |
(b) | Secretory Phase | (ii) | Follicular Phase |
(c) | Menstruation | (iii) | Luteal Phase |
(a) | (b) | (c) | |
1. | (ii) | (iii) | (i) |
2. | (i) | (iii) | (ii) |
3. | (iii) | (ii) | (i) |
4. | (iii) | (i) | (ii) |
Adaptive radiations refers to
1. Power of adaptation in an individual to a variety of environments.
2. Adaptations due to geographical isolation.
3. Evolution of different species from a common ancestor.
4. Migration of members of a species to different geographical areas.
What are those structures that appear as beads-on-string in the chromosomes when viewed under an electron microscope?
1. | Genes | 2. | Nucleotides |
3. | Nucleosomes | 4. | Base pairs |
Attractants and rewards are required for:
1. Anemophily
2. Entomophily
3. Hydrophily
4. Cleistogamy
Which one of the following statements is correct?
1. The seed in grasses is not endospermic.
2. Mango is a parthenocarpic fruit.
3. A proteinaceous aleurone layer is present in maize grain.
4. A sterile pistil is called a staminode.
An improved variety of transgenic basmati rice
1. Gives high yield and is rich in vitamin A
2. Is completely resistant to all insect pests and diseases of paddy
3. Gives high yield but has no characteristic aroma
4. Does not require chemical fertilizers and growth hormones
Select the correct statement from the ones given below:
1. | Morphine is often given to persons who have undergone surgery as a painkiller. |
2. | Chewing tobacco lowers blood pressure and heart rate. |
3. | Cocaine is given to patients after surgery as it stimulates recovery. |
4. | Barbiturates when given to criminals make them tell the truth. |
A disease caused by an autosomal primary non-disjunction is:
1. | Down's Syndrome | 2. | Klinefelter's Syndrome |
3. | Turner's Syndrome | 4. | Sickle Cell Anemia |
Which one of the following is a viral disease of poultry?
1. Pasteurellosis
2. Salmonellosis
3. Coryza
4. New castle disease
The common nitrogen fixer in paddy fields is:
1. | Frankia | 2. | Rhizobium |
3. | Azospirillum | 4. | Oscillatoria |
Gemmule formation is a common mode of asexual reproduction in
1. Paramecium
2. Hydra
3. Sponges
4. Yeast
How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, Mustard, Groundnut, Radish, Gram and Turnip have stamens with different lengths in their flowers?
1. Six
2. Three
3. Four
4. Five
The diagram given below shows the germs layer. The animals having structures shown in the figures A and B are respectively called
1. | Diploblastic, Triploblastic | 2. | Triploblastic, Diploblastic |
3. | Diploblastic, Diploblastic | 4. | Triploblastic, Triploblastic |
In coal fired power plants, electrostatic precipitators are fitted to control emission of:
1.
2. CO
3. SPM
4.
Biodiversity of a geographical region represents:
1. Endangered species found in the region.
2. The diversity in the organisms living in the region.
3. Genetic diversity present in the dominant species of the region.
4. Species endemic to the region.
The breakdown of detritus into smaller particles by earthworm is a process called
1. Humification
2. Fragmentation
3. Mineralisation
4. Catabolism
The principle of competitive exclusion was stated by:
1. | G. F. Gause. | 2. | Mac Arthur. |
3. | Verhulst and Pearl. | 4. | C. Darwin. |
Which one of the following is not the function of the placenta?
1. | It facilitates the supply of oxygen and nutrients to the embryo |
2. | It secretes oestrogen |
3. | It facilitates the removal of carbon dioxide and waste material from the embryo |
4. | It secretes oxytocin during parturition |
Which one of the following pairs of organs includes only the endocrine glands?
1. Parathyroid and adrenal
2. Pancreas and parathyroid
3. Thymus and testes
4. Adrenal and ovary
Which of the following cell organelles is present in the highest number in secretory cells?
1. | Mitochondria | 2. | Golgi complex |
3. | Endoplasmic reticulum | 4. | Lysosomes |
After meiosis I, the resultant daughter cells have
1. same amount of DNA as in the parent cell in S
2. twice the amount of DNA in comparison to haploid gamete
3. same amount of DNA in comparison to haploid gamete
4. four times the amount of DNA in comparison to haploid gamete
Which of the following organic compounds is the main constituent of Lecithin?
1. | Arachidonic acid | 2. | Phospholipid |
3. | Cholesterol | 4. | Phosphoprotein |
The main difference between active and passive transport across cell membrane is :
1. passive transport is non-selective whereas active transport is selective.
2. passive transport requires a concentration gradient across a biological membrane whereas active transport requires energy to move solutes.
3. passive transport is confined to anionic carrier proteins whereas active transport is confined to cationic channel.
4. active transport occurs more rapidly than passive.
Match the items given in Column - I with those in Column - II and choose the correct option.
Column-I | Column-II | ||
(a) | Rennin | (i) | Vitamin B12 |
(b) | Enterokinase | (ii) | Facilitated transport |
(c) | Oxyntic cells | (iii) | Milk proteins |
(d) | Fructose | (iv) | Trypsinogen |
(a) | (b) | (c) | (d) | |
1. | (iii) | (iv) | (ii) | (i) |
2. | (iv) | (iii) | (i) | (ii) |
3. | (iv) | (iii) | (ii) | (i) |
4. | (iii) | (iv) | (i) | (ii) |
Match the items of Column - I with Column - II:
Column-I | Column-II | ||
(a) | XX-XO method of sex determination | (i) | Turner's syndrome |
(b) | XX-XY method of sex Determination | (ii) | Female heterogametic |
(c) | Karyotype-45 | (iii) | Grasshopper |
(d) | ZW-ZZ method of Sex Determination | (iv) | Female homogametic |
Select the correct option from the following:
1. (a) - (ii), (b)- (iv), (c)- (i), (d)-(iii)
2. (a) - (i), (b)- (iv), (c)- (ii), (d)-(iii)
3. (a) - (iii), (b)- (iv), (c)- (i), (d)-(ii)
4. (a) - (iv), (b)- (ii), (c)- (i), (d)-(iii)
Identify A, B and C in the diagrammatic representation of the mechanism of hormone action.
Select the correct option from the following:
1. A = Steroid Hormone; B = Hormone receptor Complex; C = Protein
2. A = Protein Hormone; B = Receptor; C = Cyclic AMP
3. A = Steroid Hormone; B = Receptor; C = Second Messenger
4. A = Protein Hormone; B = Cyclic AMP; C = Hormone-receptor Complex
Which of the following statements is not correct?
1. An action potential in an axon does not move backward because the segment behind is in a refractory phase.
2. Depolarization of hair cells of cochlea results in the opening of the mechanically gated Potassium- ion channels.
3. Rods are very sensitive and contribute to daylight vision.
4. In the knee-jerk reflex, stimulus is the stretching of muscle and response is its contraction.
Column-I | Column-II | ||
(a) | Gliding joint | (i) | Between carpal and metacarpal of thumb |
(b) | Hinge joint | (ii) | Between Atlas and Axis |
(c) | Pivot joint | (iii) | Between the Carpals |
(d) | Saddle joint | iv | Between Humerus and Ulna |
Select the correct option from the following:
1. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
2. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
3. (a)-(iv), (b(-(ii), (c)-(iii), (d)-(i)
4. (a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
Which of the following is a correct statement?
1. | IUDs once inserted need not be replaced. |
2. | IUDs are generally inserted by the user herself. |
3. | IUDs increase the phagocytosis of sperms in the uterus. |
4. | IUDs suppress gametogenesis. |
Match the following cell structure with its characteristic feature :
(a) | Tight junctions | (i) | Cement neighbouring cells together to form sheet |
(b) | Adhering junctions | (ii) | Transmit information through chemical to another cells |
(c) | Gap junctions | (iii) | Establish a barrier to prevent leakage of fluid across epithelial cells |
(d) | Synaptic junctions | (iv) | Cytoplasmic channels to facilitate communication between adjacent cells |
Select correct option from the following:
(a) | (b) | (c) | (d) | |
1. | (ii) | (iv) | (i) | (iii) |
2. | (iv) | (ii) | (i) | (iii) |
3. | (iii) | (i) | (iv) | (ii) |
4. | (iv) | (iii) | (i) | (ii) |
Select the correct statement.
1. Expiration occurs due to external intercostal muscles.
2. Intrapulmonary pressure is lower than the atmospheric pressure during inspiration.
3. Inspiration occurs when atmospheric pressure is less than intrapulmonary pressure.
4. Expiration is initiated due to contraction of diaphragm.
All the components of the nodal tissue are autoexcitable. Why does the SA node act as the normal pacemaker ?
1. SA node has the lowest rate of depolarisation
2. SA node is the only component to generate the threshold potential.
3. Only SA node can convey the action potential to the other
4. SA node has the highest rate of depolarisation.
Match the following parts of a nephron with their function:
(a) | Descending limb of Henle's loop | (i) | Reabsorption of salts |
(b) | Proximal convoluted tubule | (ii) | Reabsorption of water |
(c) | Ascending limb of Henle's loop | (iii) | Conditional reabsorption of sodium ions and water |
(d) | Distal convoluted tubule | (iv) | Reabsorption of ions, water and organic nutrients |
Select the correct option from the following:
(a) | (b) | (c) | (d) | |
1. | (i) | (iii) | (ii) | (iv) |
2. | (ii) | (iv) | (i) | (iii) |
3. | (i) | (iv) | (ii) | (iii) |
4. | (iv) | (i) | (iii) | (ii) |
In the dicot root, the vascular cambium originates from :
1. Tissue located below the phloem bundles, a portion of pericycle tissue, above the protoxylem
2. Cortical region
3. Parenchyma between endodermis and pericycle
4. Intrafascicular and interfascicular tissue in a ring
Which of the following bacteria reduces nitrate in soil into nitrogen?
1. Nitrobacter
2. Thiobacillus
3. Nitrococcus
4. Nitrosomonas
Where is the respiratory electron transport system (ETS) located in plants?
1. Mitochondrial matrix
2. Outer mitochondrial membrane
3. Inner mitochondrial membrane
4. Intermembrane space
In Hatch and Slack pathway, the primary CO2 acceptor is -
1. | Oxaloacetic acid | 2. | Phosphoglyceric acid |
3. | Phosphoenol pyruvate | 4. | RuBisCO |
Removal of shoot tips is a very useful technique to boost the production of tea leaves. This is because
1. Gibberellins prevent bolting and are inactivated.
2. Auxins prevent leaf drop at early stages.
3. Effect of auxins is removed and growth of lateral buds is enhanced.
4. Gibberellins delay senescence of leaves.
Expressed Sequence Tags (ESTs) refers to:
1. Novel DNA sequence
2. Genes expressed as RNA
3. Polypeptide expression
4. DNA polymorphism
In a mixture, DNA fragments are separated by-
(1) Bioprocess engineering
(2) Restriction digestion
(3) Electrophoresis
(4) Polymerase chain reaction