MCQ’S ON PERISTALSIS
1. This structure is absent in frogs and present in man
(a) thyroid gland
(b) adrenal gland
(c) salivary gland
(d) pancreas
Answer: (c)
2. This hormone facilitates the secretion of HCl from the stomach
(a) somatomedin
(b) secretin
(c) gastrin
(d) renin
Answer: (c)
3. Pick the incorrect statement
(a) cephalic phase of gastric secretion does not involve the release of gastrin
(b) contraction of pyloric sphincter is caused due to large doses of gastrin
(c) deficiency of intrinsic factor causes pernicious anaemia
(d) gastric peristalsis includes propulsive grinding and mixing movements
Answer: (a)
4. In humans, this pair of food constituents arrive at the stomach in a state of complete indigestion
(a) Starch and protein
(b) Fat and starch
(c) Cellulose and protein
(d) Cellulose and fat
Answer: (d)
5. This is most likely to happen if parietal cells of the gut epithelium turn partially non-functional
(a) Steapsin turns all the more effective
(b) pH of the stomach will sharply decline
(c) Efficiency of pancreatic enzymes will reduce particularly of lipase and trypsin
(d) Inadequate hydrolysis of pepsin into peptones and proteoses
Answer: (d)
6. This regulates the peristalsis of the intestine
(a) Brachial plexus
(b) Sacral plexus
(c) Auerbach’s plexus
(d) Discoidal plexus
Answer: (c)
7. This is incorrect about vitamins
(a) tocopherol is anti-sterility vitamin
(b) vitamins are indispensable for life
(c) vitamins act as a source of energy
(d) vitamins are organic catalysts
Answer: (c)
8. Minimum peristalsis takes place in
(a) Oesophagus
(b) Duodenum
(c) Rectum
(d) Stomach
Answer: (c)
9. This prevents keratinization of the skin
(a) Vitamin D
(b) Vitamin C
(c) Vitamin B
(d) Vitamin A
Answer: (d)
10. This macromineral is essential for the synthesis of insulin
(a) magnesium
(b) chlorine
(c) iodine
(d) sulphur
Answer: (d)
MCQ’S ON MACRONUTRIENTS
1. The possible supplies of nitrogen and phosphorous ions in the soil is exhausted as they are found as
(a) particles having no charge
(b) ions that are negatively charged
(c) ions that are positively charged
(d) a disproportionate mixture of negatively charged ions
Answer: (b)
2. Plant of cabbage consumes phosphorous from
(a) phosphate rocks
(b) water irrigated soil
(c) dry soil
(d) none of the above
Answer: (b)
3. This is not absorbed through soil
(a) Potassium
(b) Nitrogen
(c) Carbon
(d) All of these
Answer: (c)
4. This is a major macronutrient, component of vitamins and enzymes
(a) sea salt
(b) sulphur
(c) carbon dioxide
(d) calcium phosphate
Answer: (b)
5. This macronutrients is a structural component of a cell wall activating the enzymes
(a) nitrogen dioxide
(b) boron dioxide
(c) carbon monoxide
(d) calcium
Answer: (d)
6. This macronutrient checks the opening and closing of the stomata and decreases the water loss from leaves
(a) nitrogen
(b) methane
(c) urea
(d) potassium
Answer: (d)
7. Deficiency of this causes the death of root tips and stem
(a) carbon
(b) calcium
(c) nitrogen
(d) phosphorous
Answer: (b)
8. Mustard’s sinigrin pungent principle can be attributed to
(a) tannins containing nitrogen
(b) glycoside containing amino group
(c) glycoside containing sulphur
(d) alkyloids containing cyanide radicle
Answer: (c)
9. This essential element is not a constituent of any enzyme however triggers the activity of many enzymes
(a) K
(b) Mn
(c) Mg
(d) Zn
Answer: (a)
10. Carbon is made available to crop plants in this form
(a) element carbon
(b) carbonates
(c) amino acids
(d) carbon dioxide
Answer: (d)
MCQ’S ON SEX DETERMINATION
1. In an entity with genetic composition AA+XXY such as Drosophila will be a normal female. In the case of mammals, it will be?
(a) Turner
(b) Klinefelter
(c) Normal female
(d) Normal male
Answer: (b)
2. ______________ discovered XY sex chromosomes
(a) M J D White
(b) Nettil Stevans
(c) R Brown
(d) Mendel
Answer: (b)
3. In this plant, sex determination was first studied
(a) Mirabilis
(b) Melandrium
(c) Datura
(d) Rumex
Answer: (b)
4. This technique can be used to detect the chromosomal abnormality of an unborn baby
(a) Tissue culture
(b) Ultrasound
(c) CAT Scanning
(d) Amniocentesis
Answer: (d)
5. A foetus’ determination of gender is dependent on
(a) mother’s age
(b) father’s health
(c) egg’s nature
(d) sperm’s nature
Answer: (d)
6. This number of Barr bodies are found in a female with XXXX chromosomes
(a) Four
(b) Three
(c) Two
(d) One
Answer: (b)
7. If a boy has sexual characters of that of a girl, its genotype would be
(a) XYY
(b) XO
(c) XXY
(d) XXX
Answer: (c)
8. Theory of linkage was put forward by
(a) De Vries
(b) Sutton
(c) Bateson and Punnet
(d) Morgan
Answer: (d)
9. The chromosomes accounted for sex determination are referred to as
(a) Heterosis
(b) Multiple alleles
(c) Allosomes
(d) Autosomes
Answer: (c)
10. The condition of Free martin is observed in
(a) Frog
(b) Rabbit
(c) Goat/sheep etc
(d) Man
Answer: (c)
