Ace your Junior Science Teacher (JST) test with our curated Biology MCQs. Ideal for STS & ETEA test preparation 2025. Practice key science topics now!
Heterotherms
Q.22 Name the vertebrates which are without jaws.
(a) Osteichthyes
(b) Chondrichthyes
(c) Cyclostomata
(d) None of these
Q.23 Which of the following are called placental mammals?
(a) Prototheria
(b) Metatheria
(c) Eutheria
(d) None of these
Q.24 Name the class without antennae.
(a) Arachnida
(b) Insecta
(c) Myriapoda
(d) Crustacea
Q.25 The African sleeping sickness is caused by
(a) Entamoeba histolytica
(b) Trypanosoma
(c) Zooflagellates
(d) Ciliates
Q.26 Which of the following does not belong to angiospermic families?
(a) Piceae
(b) Rosaceae
(c) Poaceae
(d) Fabaceae
Q.27 Which of the following damages wooden ships?
(a) Sepia
(b) Limax
(c) Teredo
(d) Ostrea
Q.28 Which of the following may build coral reefs along with coral animals?
(a) Myxomycota
(b) Green algae
(c) Brown algae
(d) Red algae
Q.29 Which of the following do not have a body cavity?
(a) Pseudocoelomata
(b) Coelomata
(c) Acoelomata
(d) None of these
Q.30 Body cavity worms is called
(a) Pseudocoelom
(b) Acoelom
(c) Coelom
(d) Enteron
Q.31 Fasciola is endoparasite of
(a) Colon
(b) Bile Duct
(c) Liver
(d) Intestine
Q.32 Trypanosoma is transmitted in human beings by
(a) Plasmodium
(b) House Fly
(c) Anopheles
(d) Tsetse Fly
Q.33 The nervous system develops from which of the following layer during embryonic development of animals
(a) Mesoderm
(b) Endoderm
(c) Ectoderm
(d) Mesoderm and Endoderm
Q.34 Endosperm is formed as a result of
(a) Pollination
(b) Double Fertilization
(c) Self-Pollination
(d) Cross Pollination
Q.35 The male reproductive parts of the flower are called
(a) Gynoecium
(b) Androecium
(c) Calyx
(d) Corolla
Q.36 Fasciola is the name given to
(a) Tapeworm
(b) Liver Fluke
(c) Planaria
(d) Earthworm
Q.37 Ascaris is
(a) Diploblastic
(b) Haploid
(c) Triploblastic
(d) Acoelomate
Mesosomes
Q.26 Mesosomes are infoldings of the cell membrane and are involved in
(a) DNA replication
(b) Protein synthesis
(c) RNA synthesis
(d) Metabolism
Q.27 Most widespread problem of the antibiotics misuse is the
(a) Rapid cure
(b) Disturbance of metabolism
(c) Increased resistance in pathogen
(d) Immunity
Q.28 Which of the following component is found in the cell wall of fungi?
(a) Cellulose
(b) Protein
(c) Chitin
(d) Glycerol
Q.29 Reverse transcription is used to make DNA copies of:
(a) Host RNA
(b) Viral RNA
(c) Viral DNA
(d) Host DNA
Q.30 Antibiotics are produced by fungi and certain bacteria of group:
(a) Actinomycetes
(b) Ascomycetes
(c) Oomycetes
(d) Basidiomycetes
Q.31 Which statement about bacteria is true:
(a) Gram positive bacteria have more lipids in their cell wall
(b) Gram negative bacteria have more lipids in their cell wall
(c) Both have equal amount of lipids
(d) None of these
Q.32 Fungi which cause thrush in humans:
(a) Sarccomeres
(b) Candida
(c) Aspergillus
(d) Lovastatin
Q.33 Which one of the following cells are mainly infected by HIV?
(a) T-killer lymphocytes
(b) B-plasma cells
(c) T-helper lymphocytes
(d) B-memory cells
Q.34 Which one of the following antibiotic causes permanent discoloration of teeth in young children if it is misused?
(a) Penicillin
(b) Tetracycline
(c) Streptomycin
(d) None of these
Q.35 What are the sequence of steps in which a bacteriophage attacks bacteria and injects its DNA?
(a) Landing → Tail contraction → Penetration → DNA Injection
(b) Penetration → Landing → Tail contraction → DNA Injection
(c) Tail contraction → Landing → DNA Injection → Penetration
(d) Landing → Penetration → Tail contraction → DNA Injection
Q.36 Athlete’s Foot is a disease caused by
(a) Bacteria
(b) Fungus
(c) Virus
(d) Arthropod
Q.37 HIV is classified as:
(a) Bacteriophage
(b) Retrovirus
(c) Oncovirus
(d) Icosahedral virus
Q.38 Cyanobacteria are:
(a) Photoautotrophic bacteria
(b) Saprotrophic bacteria
(c) Chemosynthetic bacteria
(d) Parasitic bacteria
Q.39 During favourable conditions, certain bacteria produces:
(a) Ribosomes
(b) Spores
(c) Mitochondria
(d) None of these
Q.40 In rhizopus, zygote forms temporary, dormant, thick-walled resistant structure called:
(a) Zygospore
(b) Sporangia
(c) Spore
(d) Hypha
Kingdom Animalia
Q.1 Book lungs are present in arthropods for exchange of gases in class:
(a) Crustacea
(b) Arachnida
(c) Insecta
(d) Myriapoda
Q.2 Larvae of which group are similar to chordates?
(a) Echinodermata
(b) Arthropoda
(c) Annelida
(d) Nematoda
Q.3 Trypanosoma is a human parasite causing:
(a) African sleeping sickness
(b) Indonesian sleeping sickness
(c) European sleeping sickness
(d) American sleeping sickness
Q.4 The feeding stage of slime mold is a
(a) Gastrozoid
(b) Sporozoite
(c) Spore
(d) Merozoite