Question # 1

An association between two organisms, which brings benefit to both the organisms is called:

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Parasitism

Commensalisms

Predation

Symbiosis

Which type of hepatitis is called serum hepatitis

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Hepatitis A

Hepatitis B

Hepatitis C

Hepatitis D

The fourth trophic level includes the:

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Producers

Tertiary consumers

Secondary consumers

None of these

Lipids store double amount of energy as compared to same amount of carbohydrates, because of

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Higher proportion of C-H bonds

Higher proportion of C-N bonds

Higher proportion of C-O bonds

Lower proportion of C-O-P bonds

Insulin is a/an:

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Osmotic Protein

Transport Protein

Regulatory Protein

Catalytic Protein

The organisms of same species live in a same place is called

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Community

Population

Consumers

All of these

The total amount of energy fixed by plants is ______ productions

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Gross primary

Net primary

Secondary

All of the above

A carrier mother for colour blindness does not have

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A normal boy

A carrier boy

A colour blind boy

A normal daughter

Ribozyme is found in

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Mitochondria

Cytoplasm

Lysosomes

Ribosomes

A thin layer of earth in which all living organisms live is called:

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Biosphere

Habitat

Niche

Hydrosphere

The dominance relations of a 4 O'clock plant can be described in terms of

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Complete dominance

Incomplete dominance

Partial dominance

Both B and C

In mitochondria, small knob like structure called FI particles are found in

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Outer membrane

Inner membrane

Outer compartment

Inner compartment

The relationship between insects and flowering plants is the example of:

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Commensalism

Mutualism

Predation

Parasitism

Glycerol, fatty acids and phosphoric acid give rise to:

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Phospholipid

Phosphatidic acid

Phosphatidyl choline

Phosphatidylethnoline

Nutrient cycle are also called us:

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Biogeochemical cycles

Elemental cycles

Geochemical cycles

Biochemical cycles

Depolarization of neural membrane is due to

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Influx of K+

Efflux of Na+

Influx of Na+

None

All of the following are present in mitochondria, EXCEPT

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Cristae

Ribosomes

DNA

Thylakoids

The term ecology comes form the ______ words oikos, meaning "The family household"

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Greek

Latin

English

French

Bilirubin

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Turns skin Yellow

Damages brain cells

Causes jaundice

All of these

Enzymes cannot work in which of the following

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Aqueous medium

Dry medium

Acidic medium

Alkaline medium

Plants like cacti store their water in large:

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Collenchyma tissues

Mesenchymal tissues

Parenchyma tissues

Epidermal tissues

Which one of the following does not refer to mutialism

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Mycorrhiza

Parasitism

Lichen

Bacteria in the gut of cow

The concept that all living things came into existence in their present forms especially created by Nature is called as

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Theory of special creation

Theory of special selection

Theory of natural creation

Theory of natural selection

The second trophic level includes the:

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Producers

Tertiary consumers

Secondary consumers

Primary consumers

How may gene pairs contribute to the wheat grain colour?

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one

two

three

four

The amount of energy left after plants have met their respiratory needs shows up the plant:

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Not productivity

Gross productivity

Secondary productivity

Bio energy

According to Darwin descent with modification means

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Same ancestor

Same characters

Different ancestors

Different characters

The process by which the limited amount of nitrogen is circulated and recirculated throughout the world of living organisms is known as the

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Nitrogen cycle

Nitrogen path way

Nitrogen depletion

None of above

The green photosynthetic plants, which capture and bring light energy into the ecosystem are:

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Decomposers

Consumers

Producers

Scanvengers

Traffic of substance between nucleoplasm and cytoplasm is controlled by

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Nuclear Envelope

Nuclear membrane

Nuclear pores

Endoplasmic reticulum

Vector for spread of African sleeping sickness is

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Anopheles

Commonhouse fly

Tse-tse fly

Honey bee

Which oxides causes headache and brain damage

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Nitrogen

Lead

CO₂

CO

When succession starts on dry soil or rocks it is called:

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Hydrosere

Derosere

Xerosere

lithosere

Glyosidic bond is formed by the

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Removal of Oxygen

Addition of Water

Addition of Oxygen

Removal of Water

Digestive vacuoles are also called as

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Primary Lysosomes

Secondary Lysosomes

Phagocytic Vacuoles

Pinocytic Vacuoles

Most unifying characteristics of all types of cells is

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Cell membrane

Nucleus

Ribosomes

S.E.R

Pick up ester bond present in nucleotide

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P-O-C

C-O-C

N-O-C

S-O-C

The only phylum included in Grade Radiata is:

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Porifera

Aschelminthes

Platyhelminthes

Cnidaria

Identify correct trophic level of food chain

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Fox >>> rabbit >>> beetle

Dog >>> Rabbit >>> grass

Owl >>> Rat >>> Rabbit

Fox >>> beetle >>> Rabbit

Global warming is the result of

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Ozone layer depletion

Acid rain

Green house gases

All of them

Dominant species of mammals in grassland are the:

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Omnivores

Herbivores

Carnivores

Insectivores

Mascara is a type of:

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Lion

Bird

Monkey

Bear

The term ecology comes from the Greek words Oikos, meaning "the family household" and logy (logos) meaning:

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The study of

Living

Building

Niche

Plants growing in xeric (dry) condition are called:

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Hydrophytes

Xerophytes

Mesophytes

Derophytes

Dandruff is the example of

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Endoparadite

Ectoparasite

Outer parasite

All of above

Which of the following has chitinous cuticle in the exoskeleton

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Arthropoda

Porifera

Echinodermata

Annelida

The animal that is caught and eaten is called:

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Prey

Host

Victim

Quarry

Which is not the function of glucagon

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Glycogen hydrolysis

Lipolysis

Gluconeogenesis

Protein synthesis

Optimum pH for digestive enzymes of stomach is

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Highly acidic

Highly alkaline

slightly acidic

slightly alkaline

Man has ____________ linkage group

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23

21

25

46

Which of the following features is not shared by prokaryotic and eukaryotic cells

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Ribosome

Cytoplasm

Cell membrane

Nuclear membrane

Lices and mosquitoes are the examples of

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Endoparasite

Ectoparasite

Outer parasite

All of above

Pick up the example of a dinucleotide:

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ATP

GTP

ADP

NAD

What is the probability of having albino child if father and mother both are carrier(Aa)

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25%

30%

50%

75%

The purest form of global warming is in the shape of

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Disease

Flood

Acid rain

All of these

The study of relationship of an organisms to their environment is known is

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Biology

Ecology

Zoology

Mycology

Primary succession that starts on a dry soil or rock is called:

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Hydrosere

Derosere

Xerosere

Aquasere

Function of succinic dehydrogenase is aided by

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Metal ion

Vitamin

NAD

FAD

The ecosystem consists of interacting components,

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Biotic

Abiotic

Bioic and Abiotic

None of these

Genes for alpha and beta chains of hemoglobin are found on which chromosomes?

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Chromosome 16 alpha; chromosome 11 beta

Chromosome 11 alpha; chromosome 16 beta

Chromosome 11

Chromosome 16

In an ecosystem sheep and rabbits are examples of

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Producers

Predators

Grazers

Saprophytes

Succinic acid differs from malonic acid by

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OH

CH₂

CH₃

CHO

Moss stage is represented by

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Polytrichum

Tortula

Adiantum

Both a and b

Melanin pigment is produced under the hormone

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ADH

MSH

STH

TSH

All chromosomes other than sex chromosomes are called

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Linked Chromosomes

Autosomes

Autophagosommes

Dictyosomes

The ecosystem consists of two basic interacting components:

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Living and physical

Biotic and abiotic

Living and biotic

Both a & b

When we study a single population relationship to its environment it will be called:

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Mycology

Synecology

Autecology

Ornithology

In a phospholipid molecule, phosphoric acid is attached to the carbon number_____ of glycerol.

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1

2

3

4

Which of the following are suicidal bags

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Lysosomes

Ribosomes

Centriole

Mitochondria

Which of the following is not a homopolysccharide?

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Starch

Chitin

Pectin

Glycogen

The simplest mono saccharide containing keto group is:

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Glyceraldehyde

Glucose

Dihydroxyacetone

Ribose

According to fluid mosaic model of cell membrane

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The most common type of molecules in the membrane are proteins

Basic membrane structure results from how proteins interact with water

The membrane is highly mobile mixture of phospholipids and proteins

The unique properties of cell types are determined by their phospholipids

Which of the following is correct about insulin

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Inhibit glycogen hydrolysis

Increase protein synthesis

Increase glycolysis

All

All the organisms, primarily animals, which obtain energy directly or indirectly from the produces as ready-organic food are:

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Decomposers

Consumers

Detritivores

Scavengers

Which element is the most potent source for the depletion of ozone layer

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Chlorine

Fluorine

Carbon

All of them

In case of symbiosis ___________ is benefited.

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Host

Parasite

Both host and parasite

None of these

The term ecology was first used by a ________ zoologist.

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American

Canadian

German

Greece

Give an example of transport across cell membrane using energy

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Endocytosis and exocytosis

Reabsorption of Na+ from ascending loop of Henle

Reabsorption of water from collecting duct

All

Catalase and chymotrypsin have similar

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Substrate

Product

Optimum pH

Metabolic impact

Vaccine for___ is under trial administration

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Hep A

Polio

Measles

AIDS

When Fructose form ring structure, It is

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6 Cornered

5 cornered

4 cornered

3 cornered