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Which of the following taxonomic categories are correctly matched to their standard termination of names with respect to biological classification of plants?

1. I, II, IV
2. I, II, III
3. II, III, IV
4. I, II, III, IV

Consider the following statements:

Which of the above statements are true?
1. I and II only
2. I and III only
3. II and III only
4. I, II and III

The hilum is a scar on the
1. seed, where funicle was attached
2. fruit, where it was attached to the pedicel
3. fruit, where style was present
4. seed, where micropyle was present
 

Genus has

Cats come under Felis. Which taxon are we talking about?
1. Class
2. Order
3. Genus
4. Species

Order and higher taxon are identified on the basis of-

Leaves are modified into tendrils in:
1. Parkinsonia     
2. Pea                 
3. Ranunculus     
4. Oxalis

Which of the following is not the member of Liliaceae:
1. Tulip, Gloriosa, Aloe                     
2. Colchicum
3. Pisum                                          
4. Asparagus

Which out of the following was not the basis of the five kingdom classification?

Comma shaped bacteria are

Identify the odd one out with respect to the formation of the spores.

Domain Eukarya includes how many kingdoms (with respect to six kingdom system)?
1. Two
2. Three
3. One
4. Four

species are considered as
(1) artificial concept of human mind which cannot be defined in absolute terms
(2) real units of classificatiion devised by taxonomists
(3) real basic units of classification
(4) the lowest units of classification

Which among the following is not a prokaryote?
1. Saccharomyces
2. Mycobacterium
3. Nostoc
4. Oscillatoria

Difference between Virus and Viroid is
1. Absence of protein coat in viroid but presence of virus
2. Presence of low molecular weight RNA in virus but absence in viroid
3. Both 1 and 2
4. None of the above

The placenta is attached to the developing seed near the
1. Testa
2. Hilum
3. Micropyle
4. Chalaza

Choose the correct from the followings:- 

Identify the correct features of Mango and Coconut fruits.
(i) In both fruit is a drupe
(ii) Endocarp is edible in both
(iii) Mesocarp in Coconut is fibrous, and in Mango, it is fleshy
(iv) In both, the fruit develops from the monocarpellary ovary
Select the correct option from below :
(1) (i), (iii) and (iv) only
(2) (i), (ii) and (iii) only
(3) (i) and (iv) only
(4) (i) and (ii) only 

Aestivation of petals in the flower of cotton is correctly shown in:

1.		2.
3.		4.

Practical purpose of taxonomy or classification is to:

Consider the following characters:
I. Air bladder
II. Operculum
III. Viviparity
The characters present in bony fishes include:

Which of the following elements is present in higher proportion [% weight of the total] in Earth's crust with respect to the average composition of a human body?
1. Carbon
2. Nitrogen
3. Sulfur
4. Magnesium

Birds are not characterized by:
1. Forelimbs modified into wings
2. Fully ossified endoskeleton
3. Skin dry without glands except for oil gland
4. Oviparous and external fertilization

Echinoderms are not characterized by:
 

Which of the following characteristic features always holds true for the corresponding group of animals?

Which one of the following phyla is correctly matched with its two general characteristics?

In a normal adult, ascending order of concentration of following molecules is
1.  Na>K>Fe>Cu         
2. Na>K>Cu>Fe
3. Fe>Na>K>Cu             
4. Na>Fe>K>Cu

Collar cells are present in the members of which phyla
1. Echinodermata
2. Coelenterata
3. Ctenophora
4. Porifera

Which of the following is called pearl oyster?
1. Dentalium
2. Pinctada
3. Pila
4. Aplysia

Ancylostoma is also known as
1. Pinworm
2. Hookworm
3. Flatworm
4. Filarial worm

Which one of the graphs show the effect of temperature on the velocity of a typical enzymatic reaction?

The four elements making 99 % of living system are:

Stinging capsule present in Cnidarians is called
1.Nematocysts
2.Choanocytes
3.Cnidocytes
4.Both 2 and 3

Which of the following is true about Lipids
1.It is a polymer of Fatty acids and Glycerol
2.Water soluble
3.Fatty acids can be saturated or unsaturated
4.both 1 and 3

Which of the following is true?
1. All the elements present in a sample of earth’s crust are also present in a sample of living tissue
2. Carbon and Hydrogen are  present in more amount in any living organism than earth’s crust.
3. Carbon and Hydrogen are present in more in living organisms than in non living matter.
4. All of the above

Enzymes work at optimum temperature. Over a range of 0 to 40⁰C, what would happen to the rate of enzyme controlled reactions for every 10⁰C rise in temperature?

Which of the following class of enzymes helps in catalysing a transfer of a group (other than hydrogen) between a pair of substrates?
1. Ligases
2. Lyases
3. Transferases
4. Hydrolases

The molecule represented is :-

Which of the following is a correct match with respect to members listed and corresponding taxon?

Choose the incorrect match.

The a-D-glucose and b-D-glucose differ from each other due to difference in carbon atom with respect to its
1. conformation
2. configuration
3. number of OH-groups
4. size of hemiacetal ring

Sucrose in water is dextrorotatory, ${\left[\mathrm{\alpha }\right]}_D=+66.4°$ when boiled with dil.HCl, the solution becomes leavorotatory, ${\left[\alpha \right]}_D=-39.9°.$ In this process the sucrose breaks into
1. L-glucose + D-fructose
2. L-glucose + L-fructose
3. D-glucose + D-fructose
4. D-glucose + L-fructose

Which is not a true statement?
1. a-carbon of a-amino acid is asymmetric except glycine
2. All proteins are found in L-form
3. Human body can synthesis all proteins they need
4. At pH = 7 both amino and carboxylic groups exist in ionised form

An amine among the following that acts as hormone is : 
1. Thyroxine
2. Oxypurin
3. Insulin
4. Progesterone

Consider the given reaction, 2SO₂ + O₂ $\to$2SO₃ 
6.4 g SO₂ and 3.2 g O₂ to form SO₃ . The mass of SO₃ formed is:  
1. 32 g
2. 16 g
3. 8 g
4. 4 g

Calculate the number of ions present in 2L of a solution of 1.6 M K₄[Fe(CN)₆]:

1 c.c of N₂O at NTP contains : 
1. $\frac{1.8}{224}\times {10}^{22}$ atoms
2. $\frac{6.02}{22400}\times {10}^{23}$ molecules
3. $\frac{1.32}{224}\times {10}^{23}$ electrons
4. All the above

The mass of carbon present in 0.5 mole of K₄[Fe(CN)₆] is:
1. 1.8 g
2. 18 g
3.  3.6 g
4.  36 g

             O
             ll
NH₂-CH-C-NH-CH₂-CO₂H
         l
       CH<sub>3
Identify the amino acid obtained by hydrolysis of the above compound :-

1. Glycine
2. Alanine
3. Both (1) and (2)
4. None of the above</sub>
 

One of the essential α-amino acids is:

If the Avogadro number N_A, is changed from 6.022 x 10²³ mol^-1 to 6.022 x 10²⁰ mol^-1 this would change: 
1. The definition of mass in units of grams.
2. The mass of one mole of carbon.
3. The ratio of chemical species to each other in a balanced equation.
4. The ratio of elements to each other in a compound.

What is the empirical formula of vanadium oxide, if 2.74 g f the metal oxide contains 1.53 g of metal:
1.  ${\mathrm{V}}_2{\mathrm{O}}_3$
2.  VO
3.  ${\mathrm{V}}_2{\mathrm{O}}_5$
4.  ${\mathrm{V}}_2{\mathrm{O}}_7$

Cellulose is a straight-chain polysaccharide composed of only :
1. D-glucose units joined by $\mathrm{\alpha }$ - glycosidic linkage.
2. D-glucose units joined by $\mathrm{\beta }$ - glycosidic linkage.
3. D-galactose units joined by $\mathrm{\alpha }$ - glycosidic linkage.
4. D-galactose units joined by $\mathrm{\beta }$ - glycosidic linkage.

A linkage present in proteins and peptides is:

1.		2.
3.		4.

Write the structure of alanine at pH = 2 and
pH = 10
1. 
2. 
3. 
4. None of above

The number of valence electrons present in 0.53 grams of Na₂CO₃ is:
1. $3.01\times {10}^{23}$
2. $7.22\times {10}^{22}$
3. $12.046\times {10}^{23}$
4. $6.023\times {10}^{23}$

The following data was obtained when dinitrogen and dioxygen react together to form different compounds:

The law of chemical combination applicable to the above experimental data is:
1. Law of reciprocal proportions
2. Law of multiple proportions
3. Law of constant composition
4. None of the above.

The coordinates of a moving particle at any time \(t\) are given by \(x = \alpha t^3\) and \(y=\beta t^3.\) The speed of the particle at time \(t\) is given by:
1. \( \sqrt{\alpha^2+\beta^2} \)
2. \( 3 t \sqrt{\alpha^2+\beta^2} \)
3. \( 3 t^2 \sqrt{\alpha^2+\beta^2}\)
4. \( t^2 \sqrt{\alpha^2+\beta^2}\)

The acceleration \(a\) in m/s² of a particle is given by $a=3t^2+2t+2$ where t is the time. If the particle starts out with a velocity, \(u=2\) m/s at t = 0, then the velocity at the end of \(2\) seconds will be:
1. \(12\) m/s
2. \(18\) m/s
3. \(27\) m/s
4. \(36\) m/s

The graph between the displacement \(x\) and time \(t\) for a particle moving in a straight line is shown in the figure.

During the interval OA, AB, BC and CD the acceleration of the particle is:

A body starts from rest with uniform acceleration. If its velocity after n second is v, then its displacement in the last two seconds is
1. $\frac{2v(n+1)}{n}$
2. $\frac{v(n+1)}{n}$
3. $\frac{v(n-1)}{n}$
4. $\frac{2v(n-1)}{n}$

A boy standing at the top of a tower of \(20\) m height drops a stone. Assuming \(g=10\) m/s², the velocity with which it hits the ground will be:
1. \(20\) m/s                                         
2. \(40\) m/s
3. \(5\) m/s                                           
4. \(10\) m/s

A particle moves a distance x in time t according to equation $x={\left(t+5\right)}^{-1}.\hspace{0.17em}$The acceleration of the particle is proportional to, 
1. ${\left(velocity\right)}^{3/2}$                                         
2. ${\left(dis\tan ce\right)}^2$
3. ${\left(dis\tan ce\right)}^{-2}$                                         
4. ${\left(velocity\right)}^{2/3}$

A particle moves along a straight line and its position as a function of time is given by$\mathrm{}$ \(x= t^3-3t^2+3t+3\) then particle:

A particle is moving such that its position coordinates (x, y) are (\(2\) m, \(3\) m) at time \(t=0,\) (\(6\) m,\(7\) m) at time \(t=2\) s, and (\(13\) m, \(14\) m) at time \(t=\) \(5\) s. The average velocity vector \(\vec{v}_{avg}\) from \(t=\) 0 to \(t=\) \(5\) s is:
1. \({1 \over 5} (13 \hat{i} + 14 \hat{j})\)
2. \({7 \over 3} (\hat{i} + \hat{j})\)
3. \(2 (\hat{i} + \hat{j})\)
4. \({11 \over 5} (\hat{i} + \hat{j})\)

In the following displacement \((x)\) versus time \((t)\) graph, at which points \(P, Q\) and \(R\) will the object's speed be increasing?
       
1. \(R\) only
2. \(P\) only
3. \(Q\) and \(R\) only
4. \(P,Q,R\)

A particle moves along a path \(ABCD\) as shown in the figure. The magnitude of the displacement of the particle from \(A\) to \(D\) is:
       
1. $(5+10\sqrt{2})$m
2. \(10\) m
3. $15\sqrt{2}$ m
4. \(15\) m

For the following acceleration versus time graph, the corresponding velocity versus displacement graph is:
 
 

1.		2.
3.		4.

The position-time \((x\text-t)\) graphs for two children \(A\) and \(B\) returning from their school \(O\) to their homes \(P\) and \(Q\) respectively are shown in the graph. 
           
Choose the incorrect statement:

A body is projected vertically in the upward direction from the surface of the earth. If the upward direction is taken as positive, then the acceleration of the body during its upward and downward journey is:

The position of an object moving along \(x\)-axis is given by \(x=a+bt^2\), where \(a=8.5\) m, \(b=2.5 \text{ ms}^{-2}\) and \(t\) is measured in seconds. Its average velocity between \(t=2.0\) s and \(t=4.0\) s is:
1. \(10~\text{m/s}\)
2. \(15~\text{m/s}\)
3. \(20~\text{m/s}\)
4. \(25~\text{m/s}\)

When brakes are applied to a moving vehicle, the distance it travels before stopping is called stopping distance. It is an important factor for road safety and depends on the initial velocity \({v_0}\) and the braking capacity, or deceleration, \(-a\) that is caused by the braking. Expression for stopping distance of a vehicle in terms of \({v_0}\) and \(a\) is: