Questions
Which of the following is the smallest known cell?
- Mycoplasma
- Virus
- Yeast
- Bacteriophages
Which of the following groups has glycogen as its reserve food material?
- Algae
- Fungi
- Gymnosperms
- Bryophyta
Which of the following structures in a plant cell is/are enucleated?
- Xylem parenchyma
- Comapanion cells
- Seive tube elements
- Phloem parenchyma
Which of the following is the main factor of difference between photosynthetic and chemosynthetic bacteria?
- Energy source of food synthesis
- Distribution in the biosphere
- Mode of nutrition
- Intake of liquid food
Which of the following root zones absorbs maximum water from the soil in which it is planted?
- Root cap zone
- Cell division zone
- Cell elongation zone
- Root hair zone
What does a genophore consist of?
- A double stranded DNA
- A single stranded DNA
- Histones and RNA
- Histone and non-histones
Under which of the following disciplines is the life cycle of pathogens studied?
- Virology
- Nematology
- Etiology
- Parasitology
Which type of enzymes are present in lysosomes?
- Hydrolase
- ATP synthetase
- Peroxidase
- Carboxylase
Mitochondria is abundantly found in which of the following options?
- Erythrocytes
- Streptococcus
- Nostoc
- Hepatocytes
A small densely stained barr body appears in a female cell nuclei. What will be the nature of this body?
- Constitutive euchromatin
- Facultative euchromatin
- Constitutive heterochromatin
- Facultative heterochromatin
Which of the following sugars acts as the counter part of glycogen in plants?
- Starch
- Chitin
- Cellulose
- Insulin
What is the position of multiple alleles?
- They are present on different chromosomes.
- They are present on different loci of the same chromosome.
- They are present on the same locus of same chromosomes.
- They are present on non-sister chromatids.
Which of the following phenomena exhibited by the fungi is also called pullulation?
- Budding
- Conjugation
- Fission
- Fermentation
All cells in the filaments of Ulothrix have the girdle shaped chloroplast in them, except
- holdfast
- apical cell
- gametangium
- zoosporangium
The bacillus form of bacteria that has a tuft of flagella present on one end of it is called
- monotrichous
- peritrichous
- amphitrichous
- lophotrichous
Which of the following features of selaginella indicates the origin of seed-habit of higher groups?
- Photosynthetic mode of nutrition
- Heterosporophylly
- Heterospory
- Biflagellated gametes
Which of the following phenomena distinguishes meiosis from mitosis?
- Pairing of homologous chromosomes
- Separation of duplicated strands
- Spliting of cytoplasm
- Disappearance of nucleolus
Which type of enzyme inhibition takes place due to the conformational change in the enzyme molecules?
- Competitive inhibition
- Non-competitive inhibition
- Alloseric inhibition
- Feed-back inhibition
Which of the following kingdoms includes multicellular producers?
- Kingdom monera
- Kingdom protista
- Kingdom plantae
- Kingdom fungi
In which of the following plants is the surface of the leaf covered with silica grains?
- Maize
- Calotropis
- Ficus
- Citrus