Please be patient as the PDF generation may take up to a minute.

The beta cells of the endocrine pancreas secrete insulin that:

The human placenta has endocrine functions that does not secrete:
1. prolactin
2. estrogens
3. progesterones
4. human chorionic gonadotropin (HCG)

Fight or flight reactions cause activation of

In the early fetal life the main site for red blood cell formation is:

A chest pain or pressure, usually due to not enough blood flow to the heart muscle, is known as:

What is the percentage of atrial blood that flows into the ventricles without atrial systole?

Atria can completely empty during ventricular filling due to:
1. A-V node
2. A-V bundle
3. S-A node
4. Purkinje fibers

An important region of the body located between the lungs, where structures like the heart lie, is known as:

The external intercostal muscles and the diaphragm contract:

Carbon dioxide is transported in blood by all the following mechanisms except:
1. bound to the protein portion of hemoglobin
2. bound to the iron atoms of hemoglobin
3. dissolved in plasma
4. as bicarbonate

Humans are not able to survive for long periods at very high altitudes primarily because:

The reabsorption, from the filtrate, of sodium, glucose and amino acids:
1. involves the Bowman's capsule
2. is restricted to the loop of Henle
3. occurs mainly in the proximal convoluted tubules
4. occurs mainly by osmosis

What is the mechanism of reabsorption of glucose in the proximal convoluted tubule of the nephron?

All the following are secreted by the tubules of nephrons except:

During the concentration of urine, the medullary interstitial osmolality is increased by all the following except:

What will happen if the stretch receptors of the urinary bladder wall are totally removed?
1. Urine will not collect in the bladder
2. Micturition will continue
3. Urine will continue to collect normally in the bladder
4. There will be no micturition

Branched protoplasmic extensions of a nerve cell that propagate the electrochemical stimulation received from other neural cells to the cell body, or soma, of the neuron are the:

Nerve cells within the nervous system responsible for converting external stimuli from the organism's environment into internal electrical impulses are:
1. association
2. sensory
3. motor
4. interneurons

Which part of the human ear plays no role in hearing as such but is otherwise very much required?
1. Eustachian tube
2. Organ of Corti
3. Vestibular apparatus
4. Ear ossicles

HCl secreted by the gastric mucosa does not:
1. kill bacteria
2. catalyze the hydrolysis of peptide bonds
3. denature dietary proteins
4. cause the activation of pepsin

A high rate of red blood cell destruction, with elevated levels of bilirubin in the blood, causes ______.

Digestion of polymers is brought about by:
1. polymerization
2. absorption
3. condensation
4. hydrolysis

An accessory digestive gland amongst the following would be:
1. Pyloric glands
2. Crypts of Lieberkuhn
3. Salivary glands
4. Oxyntic glands

To inhibit ovulation, the corpus luteum secretes:
1. inhibin
2. activin
3. estrogen
4. progesterone

Just before the endometrium is shed during menstruation:
1. blood levels of estrogen and progesterone decrease.
2. blood levels of estrogen and progesterone increase.
3. the corpus luteum gets fully developed.
4. ovulation occurs.

Which of the following enzymes carries out the initial step in the digestion of milk in humans?
1. Rennin
2. Lipase
3. Trypsin
4. Pepsin

Which two of the following changes (1-4) usually tend to occur in the plain dwellers when they move to high altitudes (3,500 m or more)?
(a) Increase in red blood cell size
(b) Increase in red blood cell production
(c) Increased breathing rate
(d) Increase in thrombocyte count 
1. (b) and (c)
2. (c) and (d)
3. (a) and (d)
4. (a) and (b)

The largest foramen in the human skull is:

The bone not included in neurocranium is:

A bone that does not articulate with any other bone would be:
1. hyoid
2. incus
3. malleus
4. stapes

A foramen between two spinal vertebrae through which spinal nerves exit is called as:
1. pedicle.
2. intervertebral foramen.
3. vertebral foramen.
4. spinal foramen.

Given diagram shows bone of the left human hind limb as seen from front. It has certain mistakes in labeling. Two of the wrongly labelled bones are
 

In human females, meiosis-II is not completed until
1. puberty
2. fertilization
3. uterine implantation
4. birth

The ideal contraceptive for females who want to delay pregnancy and/or space children is:

Blood pressure in the mammalian aorta is maximum during
1. systole of the left atrium
2. diastole of the right ventricle
3. systole of the left ventricle
4. diastole of the right atrium

In plants, water moves from
1. less negative to more negative potential
2. more negative to less negative potential
3. a point to another point with the same potential
4. none of the above

One of the legal methods of birth control is
1. abortion by taking an appropriate medicine
2. by abstaining from coitus from day 10-17 of the menstrual cycle
3. by having coitus at the time of day break
4. by a premature ejaculation during coitus

The control points where a plant adjusts the quality and types of solutes that reach the xylem are:

Unloading of mineral ions occurs at the fine vein endings through:
1. diffusion and, are passively taken up by the sink cells
2. active transport and, are passively taken up by the sink cells
3. diffusion and, are actively taken up by the sink cells
4. active transport and, are actively taken up by the sink cells

A plant requires magnesium for

In plants, ammonia reacts with alpha ketoglutaric acid to form glutamic acid in a process called as:

PGA, as the first ${\mathrm{CO}}_2$ fixation product, was discovered in photosynthesis of
1. bryophyte
2. gymnosperm
3. angiosperm
4. alga

Photorespiration is a wasteful process. Why is it so?

The overall goal of glycolysis, Krebs cycle and the electron transport system is the formation of:
1. ATP in small stepwise units
2. ATP in one large oxidation reaction
3. Sugars
4. Nucleic acids

What is the number of ATP molecules produced when pyruvate is converted to lactate by fermentation?

One of the synthetic auxin is

Kinetin was first discovered from:

Animals have the innate ability to escape from predation. Select the incorrect example.
1. Color change in chameleon.
2. Poison fangs in snakes.
3. Melanin in moths.
4. Enlargement of body size by swallowing air in puffer fish.

High altitude acclimatization in humans include all the following except:

For the purpose of ecological studies, the term population is applicable to individuals reproducing:

The biomass available for consumption by the herbivores and the decomposers is called   
1. Secondary productivity
2. Standing crop
3. Gross primary productivity
4. Net primary productivity

The entire sequence of communities that successively change in a given area are called:
1. Taxa
2. Seres
3. Pioneers
4. Climax

Ecological succession has paralleled:
1. Glaciations
2. Mass extinctions
3. Genetic drifts
4. Evolution

Consider the following statements (A)-(D) each with one or two blanks.

Between community, diversity is known as:

Rice grown in Asia is protected from four main diseases by gene received from a single wild rice species that is:
1. Oryza nivara
2. Oryza indica
3. Oryza sativa
4. Oryza orientalis

Which is correct
1. Both Azotobacter and Rhizobium fix atmospheric nitrogen in root nodules of plants
2. Cyanobacteria, Anabaena and Nostoc are mobilizers of phosphates and plant nutrition in soil
3. At present it is not possible to grow maize without chemical fertilizers
4. excessive use of chemical fertilizers may lead to eutrophication of nearby water bodies

Which of the following statements is not true regarding CNG?
1. It is non-polluting
2. It burns more efficiently than petrol and diesel
3. It cannot be siphoned off by thieves
4. It cannot be adulterated

The Environment Protection Act was passed in:
1. 1988
2. 1987
3. 1985
4. 1986

According to CPCB, what particulate size is most harmful to humans:
1. more than 10 micrometers
2. between 5 to 10 micrometers
3. between 2.5 and 5 micrometers
4. less than 2.5 micrometers

Which of the following is the simplest amino acid?

Enzymes speed up the chemical reactions by:

The substrate concentration at which the enzyme catalyzed reaction achieves ½ Vmax is its ____ value.

Which of the following is not a constituent of cell membrane?
1. Glycolipids
2. Phospholipids
3. Cholesterol
4. Proline.

The endo-membrane system of a eukaryotic cell includes:

Which of the following statements would not be applicable to the rough endoplasmic reticulum in a eukaryotic cell?

Phylogenetic system of classification is based on
1. evolutionary relationships
2. morphological features
3. chemical constituents
4.floral characters

One example of animals having a single opening to the outside that serves both as mouth as well as anus is–
1. Asterias
2. Ascidia
3. Fasciola
4. Octopus

A water vascular system is characteristically present in:

“Radula”, a rasping tongue like organ is seen in many:
1. Mollusks
2. Flatworms
3. Roundworms
4. Arthropods

In which one of the following preparations, you are likely to come across cell junctions frequently?
1. Ciliated epithelium
2. Thrombocytes
3. Tendon
4. Hyaline cartilage

The cells of the quiescent center are characterized by
1. having dense cytoplasm and prominent nuclei
2. having light cytoplasm and small nuclei
3. dividing regularly to add to the corpus
4. dividing regularly to add to tunica

Which of the following pairs is not correctly matched?
Mode of reproduction            Example
1. Rhizome                             Banana
2. Binary fission                      Sargassum
3. Conidia                              Penicillium
4. Offset                                  Water hyacinth

Which of the following environmental conditions are essential for optimum growth of Mucor on a piece of bread?

Choose the answer from the following options:

Which one propagates through leaf tip
1. Marchantia
2. Moss
3. Walking Fern
4. Pinus.

Which stages of cell division do the following figures A and B represent respectively?

Seed coat is membranous and generally fused with the fruit wall in:

An asymmetric flower is seen in:
1. Mustard
2. Pea
3. Cassia
4. Canna

Phloem in angiosperms is composed of all the following except:

The nucleus of companion cells controls the functions of:
1. Sieve cells
2. Sieve tubes
3. Albuminous cells
4. Phloem parenchyma

In a plant cell during the S phase of the cell cycle:

Identify the incorrect statement regarding cytokinesis:

What are the structures labeled A, B, C and D respectively in the given diagram?
     

What are the structures labeled 1, 2, 3 and 4 respectively in the given diagram?

 

In the symbiotic relation lichen, the mycobiont does not:
1. prepare food for the other partner
2. provide shelter to the other partner
3. absorb mineral nutrients for the other partner
4. absorb water for the other partner

Which group of bacteria are important decomposers, helpful in production of antibiotics and curd from milk and fix nitrogen in legume plants?
1. Photosynthetic autotrophs
2. Chemosynthetic autotrophs
3. Heterotrophs
4. Methanogens

The life cycle of Ectocarpus, Polysiphonia and kelps is:
1.Diplontic
2.Haplontic
3.Aplantic
4.Haplo-diplontic

A species evolutionary history will form the basis of classification that is:
1. Biological
2. Phylogenetic
3. Artificial
4.Cladistic

Identify the incorrect statement regarding the rules of Binomial Nomenclature?