Question:- What is periodontal disease caused by?
Answer:- Pyorrhoea, or periodontal disease, to give it a proper medical term, is a disease of the gums, it is one of the most widely prevalent diseases. It affects the membrane surrounding the roots of the teeth and leads to loosening of the teeth, pus formation, and shrinkage of the gum. This disease is the primary cause for tooth loss among adults.
Question:- O2 released in the process of photosynthesis comes from A. CO2 B. water C. sugar D. pyruvic acid
Answer:- Option B
Question:- Placenta is the structure formed A. by the union of foetal and uterine tissue B. by foetus only C. by fusion of germ layers D. None of these
Answer:- Option A
Question:- Plants hormone that induces cell division is A. auxins B. gibberellins C. kinins D. domins
Answer:- Option C
Question:- Phloem is a tissue found in A. reproductive organs of animals B. plants C. insects D. mammals
Answer:- Option B
Question:- N2 content is kept constant in the biosphere due to A. N2 fixation B. industrial pollution C. nitrogen cycle D. absorption of N2
Answer:- Option C
Question:- Potato is a modified form (outgrowth) of A. root B. stem C. fruit D. leaf
Answer:- Option B
Question:- Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)? A. Order B. Subspecies C. Class D. Genus
Answer:- Option C
Question:- Prothrombin which helps in clotting of blood is released by A. lymphocytes B. erythrocytes C. monocytes D. blood platelets
Answer:- Option D
Question:- Most of the red, blue and purple colours of plants are due to a pigment called A. anthocyanin B. carotene C. chlorophyll D. xanthophylls
Answer:- Option A
Question:- Where is anthocyanin found in plants?
Answer:- Anthocyanin - A blue, violet, or red flavonoid pigment found in plants.