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What would be the heart rate of a
person if the cardiac output is 5 L,
blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL? [NEET (National) 2019] Anonymous voting
- (a) 75 beats per minute
- (b) 100 beats per minute
- (c) 125 beats per minute
- (d) 50 beats per minute
Ozone hole is marked over ______ each year between ______ and ______. Anonymous voting
- (1) Africa ; Late August ; Late October
- (2) Antarctica ; Late January ; Early October
- (3) Africa ; Late August; Early October
- (4) Antarctica ; Late August; Early October
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An elaborate network of thin, filamentous proteinaceous structures presents in the cytoplasm of eukaryotic cell only which helps in the maintenance of cell shape is called- Anonymous voting
- (1) Endosplasmic Reticulum
- (2) Plasmalemma
- (3) Cytoskeleton
- (4) Thylakoid
DNA as an acidic substance present in the
nucleus was first identified by Anonymous voting
- (1) Erwin Chargaff
- (2) Friedrich Meischer
- (3) Watson - Crick
- (4) Hershey- Chase
The formation of Acetyl Co-A from pyruvic acid is the result of its - Anonymous voting
- (1) Reduction
- (2) Dehydration
- (3) Phosphorylation
- (4) Oxidative decarboxylation
Secondary growth occurs in Anonymous voting
- (1) Dicot root
- (2) Dicot stem
- (3) Stem and root of gymnosperm
- (4) All of these
The main arena of various types of activities of a cell is Anonymous voting
- (1) Plasma membrane
- (2) Mitochondria
- (3) Cytoplasm
- (4) Nucleus
Which one of the following pairs is wrongly matched while the remaining three are correct?
(Mains 2011) Anonymous voting
- (a) Penicillium – Conidia
- (b) Water hyacinth – Runner
- (c) Bryophyllum – Leaf buds
- (d) Agave – Bulbils
Peripatus is a connecting link between
(2009)
Anonymous voting
- (a) mollusca and echinodermata
- (b) annelida and arthropoda
- (c) coelenterata and porifera
- (d) ctenophora and platyhelminthes.
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