MCQOPTIONS
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MCQOPTIONS
This section includes 1212 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 851. |
How many vertebrae are in sacrum? |
| A. | 7 |
| B. | 12 |
| C. | 5 |
| D. | 4 |
| Answer» D. 4 | |
| 852. |
How many spiracles are present in cockroach_____________? |
| A. | 5 |
| B. | 10 |
| C. | 20 |
| D. | 40 |
| Answer» D. 40 | |
| 853. |
How many species of mushrooms are edible? |
| A. | 100 |
| B. | 200 |
| C. | 3000 |
| D. | 4000 |
| Answer» C. 3000 | |
| 854. |
How many species of fungi are known till now? |
| A. | 10000 |
| B. | 100000 |
| C. | 10000000 |
| D. | 1000 |
| Answer» C. 10000000 | |
| 855. |
How many species of ascomycota occur in lichen symbiotic association? |
| A. | 30% |
| B. | 40% |
| C. | 50% |
| D. | 60% |
| Answer» D. 60% | |
| 856. |
How many moles of carbon dioxide are produced by complete oxidation of one mole of puruvic acid? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 6 |
| Answer» D. 6 | |
| 857. |
How many carbon atoms are required to form a furan ring (ribofuranose)_____________? |
| A. | 3 |
| B. | 4 |
| C. | 5 |
| D. | 2 |
| Answer» C. 5 | |
| 858. |
How many bones are present in the wrist? |
| A. | 4 bones |
| B. | 6 bones |
| C. | 8 bones |
| D. | 14 bones |
| Answer» D. 14 bones | |
| 859. |
Horsetails are included in class of____________? |
| A. | Sphenopeida |
| B. | Lycopsida |
| C. | Psilopsida |
| D. | Pteropsida |
| Answer» B. Lycopsida | |
| 860. |
Hornwarts are included in sub-class of __________? |
| A. | Anthoceropsida |
| B. | Bryopsida |
| C. | Hepaticopsida |
| D. | Psilopsida |
| Answer» B. Bryopsida | |
| 861. |
Highest form of learning is__________________? |
| A. | Latent learning |
| B. | Insight learning |
| C. | Operant conditioning |
| D. | Instinct |
| Answer» C. Operant conditioning | |
| 862. |
Higher vascular plants are also called__________? |
| A. | flowering plants |
| B. | seed plants |
| C. | ferns |
| D. | none of these |
| Answer» C. ferns | |
| 863. |
Higher turgor pressure in a plant cell is maintained by________________? |
| A. | Large number of vacoules in a plant cell |
| B. | Higher ionic concentration inside vacuoles resulting from active pumping of ions at their tonoplastic membrane |
| C. | Higher osmotic pressure of the cell vacuole |
| D. | both b and c |
| Answer» E. | |
| 864. |
Hepatic and Pancreatic secretions are also stimulated by a hormone produced by the intestinal mucosa. The hormone is___________? |
| A. | Creatin |
| B. | Gastrin |
| C. | Secretin |
| D. | Pepsin |
| Answer» D. Pepsin | |
| 865. |
Hemoglobin molecule exhibits which structural organization of proteins___________? |
| A. | Primary structure |
| B. | Secondary structure |
| C. | Tertiary structure |
| D. | Quaternary structure |
| Answer» E. | |
| 866. |
helical structure is kept by the formation of _________ bonds among amino acids molecules? |
| A. | H bonds |
| B. | Disulphide Bond |
| C. | Ionic bond |
| D. | Hydrophobic bonds |
| Answer» B. Disulphide Bond | |
| 867. |
Haemoglobin is dissolved in the blood of:___________? |
| A. | Earthworm |
| B. | Cockroach |
| C. | Hydra |
| D. | Sponges |
| Answer» B. Cockroach | |
| 868. |
Haemoglobin can be almost completely oxygenated by an oxygen pressure of __________ of mercury. |
| A. | 10 mm |
| B. | 60 mm |
| C. | 10 cm |
| D. | 100 mm |
| Answer» E. | |
| 869. |
Haemodialysis means cleaning of____________? |
| A. | Urine |
| B. | Blood |
| C. | Glomerular filterate |
| D. | Coelomic fluid |
| Answer» C. Glomerular filterate | |
| 870. |
Gut in pseudocoelomates is made from___________? |
| A. | Ectoderm |
| B. | Mesoderm |
| C. | Endoderm |
| D. | All of these |
| Answer» D. All of these | |
| 871. |
Guard cells of stoma are ________ ? |
| A. | Irregular in shape |
| B. | Convex in shape |
| C. | Long and cylindrical in shape |
| D. | Kidney-shaped |
| Answer» E. | |
| 872. |
Group of living organisms of the same species living in the same place at the same time is called________? |
| A. | Community |
| B. | Population |
| C. | Ecosystem |
| D. | Biome |
| Answer» C. Ecosystem | |
| 873. |
Group of living organisms of the same species living in the same place at the same time is called ? |
| A. | Community |
| B. | Population |
| C. | Ecosystem |
| D. | Biome |
| Answer» C. Ecosystem | |
| 874. |
Ground pries are also known as___________? |
| A. | Lycopods |
| B. | Spike mosses |
| C. | Both of these |
| D. | None of these |
| Answer» D. None of these | |
| 875. |
Grave’s disease is produced due to____________? |
| A. | Undersecretion of thyroxin |
| B. | Overproduction of thyroxin |
| C. | Undersecretion of corticosteroids |
| D. | Overproduction of corticosteroids |
| Answer» C. Undersecretion of corticosteroids | |
| 876. |
Gram +ve bacteria on treatment with crystal violet dye give _________colour? |
| A. | red |
| B. | green |
| C. | purple |
| D. | pink |
| Answer» D. pink | |
| 877. |
Gram positive bacteria appear_______________? |
| A. | Purple |
| B. | Red |
| C. | Pink |
| D. | Blue |
| Answer» B. Red | |
| 878. |
Golden brown colour of diatoms is due to presence of__________? |
| A. | Mycoxanthin, mucoxanthin and myxoxanthophylls |
| B. | Alpha and beta carotenes and myxoxanthin |
| C. | Fucoxanthin, diatoxanthin, diadinoxanthin |
| D. | None of the above |
| Answer» D. None of the above | |
| 879. |
Golden algae are also known as___________? |
| A. | Chrysophyta |
| B. | Phaeophyta |
| C. | Pyrrophyta |
| D. | Rhodophyta |
| Answer» B. Phaeophyta | |
| 880. |
Glycolysis takes place in____________? |
| A. | Nucleus |
| B. | Cytosol |
| C. | Mitochondria |
| D. | Ribosomes |
| Answer» D. Ribosomes | |
| 881. |
Glycolipids and glycoproteins have structural role in the ______________ matrix of animal and bacterial cell? |
| A. | Extracellular |
| B. | Intracellular |
| C. | Both of these |
| D. | Glucose |
| Answer» B. Intracellular | |
| 882. |
_________ give rise to macrophages, which destroy larger particles by phagocytosis. |
| A. | Nautrophils |
| B. | Basophila |
| C. | Monocyte |
| D. | Lymphocyte |
| Answer» D. Lymphocyte | |
| 883. |
Gibberellins may be substituted for ___________ light, therefore promote flowering in long day plants? |
| A. | White |
| B. | Red |
| C. | Blue |
| D. | Green |
| Answer» C. Blue | |
| 884. |
Gibberellins is an example of_________________? |
| A. | Growth inhibitor |
| B. | Growth stimulator |
| C. | Growth hormone |
| D. | None of these |
| Answer» C. Growth hormone | |
| 885. |
Germ theory of disease has________________postulates? |
| A. | 3 |
| B. | 5 |
| C. | 4 |
| D. | 6 |
| Answer» D. 6 | |
| 886. |
Genetic information carriers is/are____________? |
| A. | DNA |
| B. | Chromosomes |
| C. | Gene |
| D. | Nucleus |
| Answer» C. Gene | |
| 887. |
Genes will not be found in gene pairs in the_____________? |
| A. | Muscle cell of worm |
| B. | Uterine cells of dog |
| C. | Sperm cells of frog |
| D. | Guard cells of leaf |
| Answer» D. Guard cells of leaf | |
| 888. |
Gaseous exchange through the skin is known as ______________ respiration? |
| A. | Cuticular |
| B. | Cutaneous |
| C. | Skin |
| D. | Pulmonary |
| Answer» C. Skin | |
| 889. |
Gaseous exchange in birds occurs at level of_______________? |
| A. | Alveoli |
| B. | Air sacs |
| C. | Bronchi |
| D. | Parabronchi |
| Answer» E. | |
| 890. |
Gametophyte of Psilopsida develops a symbiotic association with which of the following______________? |
| A. | Algae |
| B. | Bacteria |
| C. | Protozoa |
| D. | Fungus |
| Answer» E. | |
| 891. |
Fungi which get their food directly from dead organic matter are called______________? |
| A. | Parasitic fungi |
| B. | Predators |
| C. | Mutualists |
| D. | Decomposers |
| Answer» E. | |
| 892. |
Fungi resemble plants because they lack___________? |
| A. | Cell wall |
| B. | Cytoplasm |
| C. | Centriole |
| D. | Nucleus |
| Answer» D. Nucleus | |
| 893. |
Fungi can tolerate pH from____________? |
| A. | 3-7 |
| B. | 2-6 |
| C. | 2-9 |
| D. | 3-6 |
| Answer» D. 3-6 | |
| 894. |
Functional units of lungs are called________? |
| A. | Alveoli |
| B. | Air sacs |
| C. | Parabronchi |
| D. | None of these |
| Answer» C. Parabronchi | |
| 895. |
Functional unit of DNA Is____________? |
| A. | Nucleus |
| B. | Genes |
| C. | Chromosomes |
| D. | Nucleolus |
| Answer» C. Chromosomes | |
| 896. |
___________ function as multisensory hydraulic valve? |
| A. | Lenticels |
| B. | Guard cells |
| C. | Hydathods |
| D. | All of these |
| Answer» C. Hydathods | |
| 897. |
Fuel used by cells in cellular respiration to get energy is ________ ? |
| A. | polysaccharides |
| B. | Polypeptides |
| C. | Glucose |
| D. | Sugar |
| Answer» D. Sugar | |
| 898. |
From right ventricle blood is pushed into? |
| A. | pulmonary trunk |
| B. | brain |
| C. | aorta |
| D. | body |
| Answer» B. brain | |
| 899. |
From one pyruvate passing through Kreb’s cycle, how many NADH are formed? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 900. |
Free living example of Platyhelminthes is____________? |
| A. | Dugesia |
| B. | Fasciola |
| C. | Taenia |
| D. | None of these |
| Answer» B. Fasciola | |