Indian Embassy Biology Past Questions - 2006


# In most metabolic pathways, all needed enzymes are arranged together in a multi enzyme complex within:
A. Solution of ATP
B. Membrane
C. Quaternary protein
D. Coenzyme

# Plant cells are connected by channels through their walls called:
A. Plasmodesmata
B. Desmosome
C. Tight junction
D. Gap junction



# Which of the following is not a form of endocytosis?
A. Monocytosis
B. Phagocytosis
C. Pinocytosis
D. Receptor-mediated cytosis



# The production of ATP by oxidative phosphorylation is driven by energy from:
A. Co-Enzyme A
B. Isomerization of Cytochrome
C. Diffusion of proton from the inter membrane space to the matrix of the mitochondria
D. formation in NADH

# Plants don't store carbohydrate as glucose because:
A. Dissolves in water and alters osmotic balance
B. Would replace ribose in DNA synthesis
C. Glucose attracts insects
D. It is not permanent

# Which of the following is a part of mitosis in a seed plant?
A. Aster
B. Centriole
C. Spindle
D. Cleavage furrow

# In DNA replication, Okazaki fragements are joined together by:
A. DNA ligase
B. Polymerase
C. Helicase
D. Primase

# In general bacterial genes are regulated at:
A. Transcription
B. Post transcription
C. Translation
D. Post-translation

# Genes that are inactive for long period of time tend to be bonded to:
A. Each other
B. Methyl group
C. Centriole
D. Membrane

# In recombinant DNA technology, plasmid vector must be cleaved by:
A. 4 types of enzyme
B. same DNA ligase that used in source
C. Other enzymes
D. Enzymes of same type

# At what phase, are homologous chromosomes separated:
A. Anaphase I
B. Anaphase II
C. Prophase I
D. Prophase II

# A trihybrid is made between two yeast, both of genotypes A/a B/b C/c. What proportion of offspring will be A/a, B/b, C/c:
A. 1/2
B. 1/4
C. 1/16
D. 1/64

# Genes not located within nucleus are present in:
A. Cytoplasm
B. Cytoskeleton
C. Organelle
D. Cytosol

# In humans, two sets of muscles that move the ears are:
A. Vestigial
B. Homologous
C. Analogous
D. Phylogenetics

# When population of plants are located adjacent to one another because of the abrupt change in soil condition. They are called:
A. Allopolyploid
B. Autopolyploid
C. Sympatric
D. Parympatric

# Which of the following causes malaria?
A. Radiolarian
B. Trichosome
C. Dinoflagellate
D. Sporozoan

# Which of the following is absent in fungi?
A. Heterotrophic
B. Autotrophic
C. Saprophytic
D. Parasitic

# Embryonic development of bryophytes occur in:
A. Protonema
B. Archegonium
C. Antheridium
D. Sporogonium

# Which is chelicerate?
A. Horse shoe crab
B. Lobster
C. Millipede
D. Grasshopper

# Diameter of blood vessel is regulated by:
A. Nerve
B. Connective
C. Muscle
D. Epithelial

# Amphibians are developed from:
A. Osteiochthys
B. Chondriocthys
C. Placodermii
D. Hemichordate

# Breathing centre occurs in:
A. Hypothalamus
B. Thalamus
C. Medulla oblongata
D. Cerebellum

# Salivary amylase assists in digestion of:
A. Fat
B. Protein
C. Carbohydrate
D. Acid

# Malphigian tubules empties urine into:
A. Gut
B. Coelom
C. Uterus
D. Lymph

# WBC that are non specific killer of microbes are:
A. B cell
B. Phagocyte
C. Killer T cells
D. Helper T cells

# Which is present in diencephalon ?
A. Cerebral cortex
B. Hypothalamus
C. Olfactory lobes
D. Basal Ganglia

# Rods and cones assist to:
A. Focus light
B. Amplify light
C. Transduce light
D. Filter light

# Adrenaline is similar to neurotransmitter as:
A. Epinephrine
B. Norepinephrine
C. GABA
D. Ach

# Energy flow is inverted for ecosystem:
A. desert
B. ocean
C. tundra
D. rainforest

# Epiphytes are abundant in:
A. Tropical rainforest
B. Temperate deciduous
C. Thorn woodland
D. Shrubland

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