Which of the following microbes is correctly paired with its function?
Aspergillus niger- Production of lactic acid
Trichoderma polysporum- Lowers blood cholesterol
Saccharomyces cerevisiae- Production of citric acid
Methanogenic bacteria- Gobar gas formation
Match Column - I with Column - II and select the correct option from the codes given below
Column I | Column II |
A. Chlorophyta | (i) Equisetum |
B. Lycopsida | (ii) Chara |
C. Phaeophyta | (iii) Selaginella |
D. Sphenopsida | (iv) Ectocarpus |
A - (ii), B - (iii), C - (iv), D - (i)
A - (iv), B - (i), C - (ii), D - (iii)
A - (ii), B - (iii), C - (i), D - (iv)
A - (iv), B - (i), C - (iii), D - (ii)
Which of the following gastric secretions is correctly matched with its source?
Pepsin - Chief cells
Chymotrypsin - Parietal cells
HCl - Goblet cells
Mucus - Oxyntic cells
Which of the following is true for excretion in humans?
Glucose and amino acids are reabsorbed in PCT by simple diffusion.
OCT is impermeable to water.
Or an average, 25-30 gm of urea is excreted out per day.
Maximum reabsorption occurs in the loop of Henle.
Which of the following is the correct floral formula for the floral diagram given below?
or (5) ()
%
Which of the following is true for the function disease in family A and B? of labelled parts in the diagram below?
A - Blind spot - Image is formed here
B - Fovea - No visual activity is present
C - Cornea - Helps to hold lens in place
D - Iris - Visible coloured portion of eye
Which of the following is true for the labelled parts in the figure below?
A - Z- line - located at centre of I - band
B - Thin filament - occurs in A- band only
C - Thick filament - confined to I- band
D - H- zone - located at centre of M - Line
Which of the following is correctly matched without exception in regard to plant classification?
Family - Poaceae - ae
Division - Pteridophyta - phyta
Class - Bryopsida - sida
Genus - Solanum - um
What is the oxidation state of iron in haemoglobin?
Fe-
Fe2+
Fe3+
Fe4+
B.
Fe2+
Red Blood Cells or RBCs contain haemoglobin. It has 4 polypeptide chains and 4 haem groups attached to it or 4 atoms of iron in ferrous form (Fe2+). Thus, it can react with 4 molecules of oxygen to form oxyhaemoglobin.
In the given table, some organisms are classified into categories. However, there is one exception. Select the option with correctly mentioned exceptional organism.
Organisms | Category | Exception |
Penicillium, Aspergillus, Mucor | Fungi | Mucor |
Organisms | Category | Fungi |
Cacti, Venus flytrap | Plants | Cacti |
Organisms | Category | Exception |
Ascaris, Nereis, Wuchereria | Aschelminthes | Nereis |
Organisms | Category | Exception |
Scorpion, Prawn, Anopheles | Arthropoda | Prawn |