NEET Test Series-2021 to 2022 MCQ Quiz Hub

1. In the last step of the EMP pathway or glycolysis, this substrate is used
Phosphoenolpyruvate
Pyruvate
1, 3-bisphosphoglycerate
Glyceraldehyde 3-phosphate

2. When yeasts carry out alcoholic fermentation of glucose, the coenzyme – thiamine pyrophosphate is needed by
transaldolase
pyruvate decarboxylase
 lactate dehydrogenase
hexokinase

3. The activity of this enzyme increases when the ATP supply of a cell depletes
Glucokinase
 Phosphofructokinase-1
Hexokinase
Pyruvate kinase

4. This is not one of the steps between the glycolysis of glyceraldehyde 3-phosphate and 3-phosphoglycerate
formation of 1,3-bisphosphoglycerate
 oxidation of NADH to NAD+
 ATP synthesis
catalysis by phosphoglycerate kinase

5.  In EMP pathway, the process by which ATP is formed from ADP is
reduction
oxidative phosphorylation
 substrate-level phosphorylation
photo phosphorylation

6. In erythrocytes, the EMP pathway or glycolysis produces pyruvate which is metabolized further to
haemoglobin
ethanol
lactate
CO2

7. This enzyme catalyzes the first step of glycolysis or the EMP pathway
Glucokinase
 Pyruvate kinase
Phosphofructokinase-1
Hexokinase

8.  This structure is absent in frogs and present in man
thyroid gland
 adrenal gland
salivary gland
 pancreas

9. This hormone facilitates the secretion of HCl from the stomach
somatomedin
secretin
gastrin
renin

10. Pick the incorrect statement
cephalic phase of gastric secretion does not involve the release of gastrin
contraction of pyloric sphincter is caused due to large doses of gastrin
deficiency of intrinsic factor causes pernicious anaemia
gastric peristalsis includes propulsive grinding and mixing movements

11. In humans, this pair of food constituents arrive at the stomach in a state of complete indigestion
Starch and protein
 Fat and starch
Cellulose and protein
Cellulose and fat

12. This is most likely to happen if parietal cells of the gut epithelium turn partially non-functional
Steapsin turns all the more effective
pH of the stomach will sharply decline
Efficiency of pancreatic enzymes will reduce particularly of lipase and trypsin
Inadequate hydrolysis of pepsin into peptones and proteoses

13. This regulates the peristalsis of the intestine
Brachial plexus
Sacral plexus
Auerbach’s plexus
 Discoidal plexus

14. This is incorrect about vitamins
tocopherol is anti-sterility vitamin
vitamins are indispensable for life
vitamins act as a source of energy
vitamins are organic catalysts

15. Minimum peristalsis takes place in
Oesophagus
 Duodenum
Rectum
Stomach

16. This prevents keratinization of the skin
Vitamin D
 Vitamin C
Vitamin B
Vitamin A

17. This macromineral is essential for the synthesis of insulin
magnesium
chlorine
 iodine
sulphur

18. In an entity with genetic composition AA+XXY such as Drosophila will be a normal female. In the case of mammals, it will be?
 Turner
Klinefelter
Normal female
Normal male

19. ________ discovered XY sex chromosomes
M J D White
Nettil Stevans
R Brown
Mendel

20. In this plant, sex determination was first studied
Mirabilis
Melandrium
Datura
Rumex

21. This technique can be used to detect the chromosomal abnormality of an unborn baby
 Tissue culture
Ultrasound
CAT Scanning
Amniocentesis

22. A foetus’ determination of gender is dependent on
mother’s age
father’s health
egg’s nature
sperm’s nature

23.  This number of Barr bodies are found in a female with XXXX chromosomes
Four
Three
Two
One

24.  If a boy has sexual characters of that of a girl, its genotype would be
XYY
XO
XXY
XXX

25. Theory of linkage was put forward by
 De Vries
Sutton
Bateson and Punnet
Morgan