Question # 1

Which one of the following is true about chloroplast

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Found in underground parts of plants

Help in pollination and dispersal of seeds

Self replicating organelles

Involve in protein synthesis

Van Niel hypothesized that source of oxygen during photosynthesis is.

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Water

NADP

Chlorophyll

Carbon di oxide

To produce Lactose

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Two amino acids must form a peptide bond

Pairing of nitrogenous bases must occur between nucleotides

Glucose and galactose must undergo a dehydration reaction

Glucose and fructose must undergo a hydrolysis reaction

All bryophytes share certain characteristics which are

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Reproductive cells in protective chambers

A waxy cuticle, true leaves and reproductive cells in protective chambers

Vascular tissues, true leaves and a waxy cuticle

Vascular tissue and a waxy cuticle

Which one of the following is a correct sequence in biological methods

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Observation-hypothesis-law-theory

Observation-hypothesis-deduction-testing of deduction

Hypothesis-observation-deduction-testing of deduction

law-theory-observation-deduction

Shrinkage of protoplast due to ex osmosis of water is called.

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Plasmolysis

Imbibition

Guttation

Bleeding

Release of nitrates by saprophytic bacteria helps in

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Carbon cycle

Oxygen cycle

Nitrogen cycle

Water cycle

In deductive reasoning we move from

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General to specific

Specific to general

General to general

Specific to specific

The optimum pH of salivary amylase is.

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2.80

4.80

6.80

8.80

Polychaeta is a class of phylum Annelida its example is.

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Nereis

Lumbricus Terrestris

Pheretime

Hirudo medicinalis

The skeleton of Athropds is made of

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Silica

Chitin

Calcium carbonate

Both a and c

Muscle present in the gut wall are.

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Smooth

skeletal

Cardiac

Voluntary

Biorhythms are called circadian which means about one day so they are also called

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Diurnal pace

Diurnal cadence

Diurnal rhythms

Diurnal tempo

A collection of bacterial and phage viruses clones containing a particular segment of DNA from the source cell is called.

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Expressing system

Genome

Genomic library

Recombinant DNA

Frogs and toads also walk and hop on land due to strong

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Forelimbs

Hindlimbs

Trunk

Head

During gastrulation the blastoderm splits into two layers, an upper layer of cells is called.

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Hypoblast

Area pellucida

Epiblast

Area Opaca

A callus is an undifferentiated group of

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Cells

Tissues

Organs

Systems

What are significant happening of meiosis.

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Crossing over

Random assortment of chromosome

Linkage

Crossing over and random assortment of chromosomes

Evolution of pollen tube is parallel to the evolution of

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Stem

Leaves

Flower

Seed

Karyokinesis involves division of nucleus and cytokinesis refer to

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Division of whole cell

Division of centromere

Division of cytoplasm

Division of cell wall

The clavicle connects scapula with.

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Skull

Sternum

Tibia

Femur

Similarity in characteristics resulting from common ancestry is known as:

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Analogy

Homology

Evolutionary relationship

Phylogeny

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