With reference to Glycolysis, which of the following statement is not correct?
Glycolysis consumes 2 ATP molecules for the initial phosphorylation of substrate molecule.
Oxygen is not required for glycolysis
Net gains is one molecule of NADH and three molecules of ATP for every molecule of glucose broken down.
It is a linear pathway and occur inside the cytoplasm.
Microtubules are assembled from molecules of the protein tubulin, which is a
monomer
dimer
trimer
pentamer
Out of the given below statements describing the characteristics of various biomolecules, option for the incorrect one
Fatty acids have hydrocarbon chains that end in a carboxylic group
Starch consist of amylose and glycogen, which are formed by the condensation of -D-glucose.
Cellulose is fibrous polysaccharide of high tensile strength.
Cutin is a complex lipid produced by cross-esterification and polymerisation of hydroxy fatty acids.
Identify the incorrect statements.
I. Members of gastropoda exhibit 'torsion'.
II. Aristotle lantern is present in heart urchins.
III. Anthozoans are polyploid forms.
IV. Diplopoda includes centipedes.
II and III
III and Iv
II and IV
I and II
Rhabditiform larva performs extraintestinal migration through different organs in the body of man. Arrange them in the correct sequence
I. Liver
II. Hepatic portal vein
III. Heart
IV. Postcaval vein
V. Lungs
VI. Pulmonary arteries
VII. Alveoli
VIII. Intestine
The correct sequence is
IV, I, II, V, VI, III, VIII and VII
V, VI, I, III, II, IV, VII and VIII
I, II, IV, VI, III, VII, V, VIII
II, I, IV, III, VI, V, VII and VIII
Study the following statements with reference to nervous system in Periplanata.
I. The brain is mainly a sensory and an endocrine centre.
II. All thoracic ganglia supply nerves to the parts of their respective segments only.
III. Sixth abdominal ganglion is the largest of all the abdominal ganglia.
IV. Frontal ganglion is connected to the ingluvial ganglion by a recurrent nerve.
From the above identify the correct statements
II and IV
II and III
I and III
I and IV
B.
II and III
Statement II and III are correct. Statement I and IV can be corrected as:
I. The brain is the chief sensory organ in Periplanata.
IV. A frontal ganglion on the dorsal wall of the pharynx is present, which is connected to the hypocerebral ganglion by a recurrent nerve.
In the female cockroach the anterior wall, roof and floor of genital pouch are formed respectively by the following abdominal sterna of
7th , 8th and 9th segments
8th , 7th and 9th segments
9th , 8th and 7th segments
8th , 9th and 7th segments
Match the following Columns
Column I | Column II |
A. Tracheids | 1. Cells posses highly thickness walls with obliterates central lumen |
B. Vessels | 2. Elongated tube like cells with thick lignified walls and tampering ends |
C. Xylem parenchyma | 3. Individual members are interconnected through perforations in their common walls |
D. Xylem fibres | 4. Cells are living with thin cellulosic cell walls. |
The correct answer is
A- 2; B- 3; C- 4; D- 1
A- 2; B- 4; C- 1; D- 3
A- 3; B- 2; C- 4; D- 1
A- 2; B- 3; C- 1; D- 4
The characteristic that does not belong to perigynous flowers is
Thalamus is disc shaped, cup or flask shaped
Ovary is superior, other parts are inferior
Thalamus is hollowed out and is fused with ovary wall
Androperianth is borne around or above the level of ovary.