370 + Mcqs in Biology Page 4 McqOptions

151.	The number of cephalic appendages in prawn is
A.	Four pairs
B.	Five pairs
C.	Six pairs
D.	Eight pairs
Answer» C. Six pairs

Discussion

152.	The number of spinal nerves in rat is
A.	15 pairs
B.	22 pairs
C.	33 pairs
D.	37 pairs
Answer» D. 37 pairs

Discussion

153.	A rhabditiform larva is found in the life cycle of
A.	Hydra
B.	Ascaris
C.	Tapeworm
D.	Liver Fluke
Answer» C. Tapeworm

Discussion

154.	The non-biotic pollutant of underground water is
A.	Bacteria
B.	Algae
C.	Arsenic
D.	Viruses
Answer» D. Viruses

Discussion

155.	Chlorophyll contains
A.	Iron
B.	Copper
C.	Magnesium
D.	Manganese
Answer» D. Manganese

Discussion

156.	Who had proposed for the first time the double helix model of DNA
A.	Watson and Crick
B.	Fisher and Haldoni
C.	Lamark and Darwin
D.	Hugo de Vries
Answer» B. Fisher and Haldoni

Discussion

157.	What is the distance of distinct vision (DDV) of a normal human eye
A.	15 cm
B.	25 cm
C.	30 cm
D.	40 cm
Answer» C. 30 cm

Discussion

158.	Which of the following organisms fix nitrogen in aquatic ecosystems
A.	Fungi
B.	Chemoautotrophs
C.	Cyanobacteria
D.	Phytoplankton
Answer» D. Phytoplankton

Discussion

159.	The average blood flow through kidneys per minute is
A.	200 cc
B.	500 cc
C.	800 cc
D.	1200 cc
Answer» E.

Discussion

160.	Plants which grow on saline soils are known as
A.	Xerophytes
B.	Hydrophytes
C.	Halophytes
D.	Succulents
Answer» D. Succulents

Discussion

161.	A plant bud is
A.	an embryonic shoot
B.	an embryonic leaf
C.	an endosperm
D.	a seed
Answer» B. an embryonic leaf

Discussion

162.	Heparin, the natural anticoagulant, is an example of
A.	Structural polysaccharides
B.	Conjugated protein
C.	Mucopolysaccharides
D.	Storage polysaccharides
Answer» D. Storage polysaccharides

Discussion

163.	The most numerous, heterogeneous and versatile macromolecules of cells are
A.	Proteins
B.	Lipids
C.	Carbohydrates
D.	All of these
Answer» B. Lipids

Discussion

164.	How many elements are said to be essential for the growth of crop plants
A.	12
B.	16
C.	20
D.	22
Answer» C. 20

Discussion

165.	Who discovered the insecticidal properties of DDT
A.	Othmanzedicer
B.	R.H. Painter
C.	Paul Muller
D.	Rachel Carson
Answer» D. Rachel Carson

Discussion

166.	Which group of animals are exclusively marine
A.	Annelids
B.	Arthropods
C.	Pisces
D.	Echinoderms
Answer» E.

Discussion

167.	What is meant by "Zoonosis"
A.	Animal disease transmitted to man
B.	Disease of man transmitted to animal
C.	Parasites of man transmitted to animal
D.	Viral disease of man transmitted to animal
Answer» B. Disease of man transmitted to animal

Discussion

168.	Which of the fungi is commonly called as bread mold
A.	Puccinia
B.	Rhizopus
C.	Ustilago
D.	All of these
Answer» C. Ustilago

Discussion

169.	The experimental material used by Gregor Mendel is __
A.	Pea plant
B.	Drossophila
C.	Potato plant
D.	None of the above
Answer» B. Drossophila

Discussion

170.	Dr. Birbal Sahni; a famous Indian botanist is concerned with __ studies
A.	Algal
B.	Fossil
C.	Bryophytic
D.	Fungal
Answer» C. Bryophytic

Discussion

171.	The numerous minute pores in the epidermis of a leaf are called
A.	Stomata
B.	Lenticels
C.	Hydathodes
D.	Perforation
Answer» B. Lenticels

Discussion

172.	The transport of organic substances in plants is through
A.	Xylem
B.	Phloem
C.	Fibers
D.	Wood
Answer» C. Fibers

Discussion

173.	The deposition of cholesterol on the walls of blood vessels causes the arteries to lose their elasticity and get stiffened is called
A.	Hypotension
B.	Hypertension
C.	Systolic Pressure
D.	Arteriosclerosis
Answer» E.

Discussion

174.	During blood coagulation, thromboplastin is released by
A.	RBC
B.	Blood Plasma
C.	Leucocytes
D.	Clumped Platelets and damaged tissues
Answer» E.

Discussion

175.	In which of the following stages of silkworm, silk is secreted
A.	Larva
B.	Pupa
C.	Egg
D.	Adult
Answer» C. Egg

Discussion

176.	Which one is important in photosynthesis to allows plants to absorb energy from light
A.	Xanthophyll
B.	Carotene
C.	Chlorophyll
D.	Phaeophytin
Answer» D. Phaeophytin

Discussion

177.	Which among the following is the best method of judging age of a Tree
A.	Diameter of tree
B.	Diameter of stem
C.	Number of branches
D.	Annual rings
Answer» E.

Discussion

178.	A plant leaf appears to be green because it
A.	Absorbs green light
B.	Reflects all but yellow and blue light
C.	Reflects green light
D.	Absorbs red and yellow light
Answer» D. Absorbs red and yellow light

Discussion

179.	What does stomach acid mostly consist of
A.	Acetic Acid
B.	Ascorbic Acid
C.	Hydrochloric Acid
D.	Sulphuric Acid
Answer» D. Sulphuric Acid

Discussion

180.	Which one of the following is a digestive hormone
A.	Gastrin
B.	Pepsin
C.	Amylase
D.	Lipase
Answer» B. Pepsin

Discussion

181.	The top chambers of human heart are called
A.	Aorta
B.	Atrium
C.	Septum
D.	Ventricle
Answer» C. Septum

Discussion

182.	What is the pH value range of human blood
A.	7.1-7.15
B.	7.45-7.55
C.	7.22-7.28
D.	7.35-7.45
Answer» E.

Discussion

183.	Entamoeba Histolytica is a
A.	Virus
B.	Protozoan
C.	Fungus
D.	Bacteria
Answer» C. Fungus

Discussion

184.	The muscle which separate the right side and left side of heart is known as
A.	Keratin
B.	Maxilla
C.	Septum
D.	Tubercules
Answer» D. Tubercules

Discussion

185.	How many chambers does a Human heart have
A.	2
B.	4
C.	6
D.	7
Answer» C. 6

Discussion

186.	Which one is found in a pair in each Chromosome
A.	Genes
B.	Nuclei
C.	Bases
D.	Chromatids
Answer» E.

Discussion

187.	Which one is the largest gland of human body
A.	Liver
B.	Thyroid
C.	Pituitary
D.	Intestine
Answer» B. Thyroid

Discussion

188.	What is the name of the sugar found in milk
A.	Glucose
B.	Fructose
C.	Lactose
D.	None of the above
Answer» D. None of the above

Discussion

189.	RNA differs from DNA in having
A.	Thyamine
B.	Adenine
C.	Uracil
D.	Guanine
Answer» D. Guanine

Discussion

190.	Which vitamin is necessary for blood clotting
A.	Vitamin A
B.	Vitamin C
C.	Vitamin K
D.	Vitamin D
Answer» D. Vitamin D

Discussion

191.	The smallest unit that is capable of carrying out life functions is known as
A.	Tissue
B.	Cell
C.	Blood
D.	DNA
Answer» C. Blood

Discussion

192.	Who is known as father of modern microbiology
A.	Alexander Fleming
B.	Dmitri Mendeleev
C.	Hugo de Vries
D.	Louis Pasteur
Answer» E.

Discussion

193.	Who is known as Father of Modern Genetics
A.	Charles Darwin
B.	Louis Pasteur
C.	Gregor Mendel
D.	Jean Baptiste Lamarck
Answer» D. Jean Baptiste Lamarck

Discussion

194.	In plants, photosynthesis mainly occurs in the
A.	Leaves
B.	Flowers
C.	Root
D.	Bark
Answer» B. Flowers

Discussion

195.	The oxygen released during photosynthesis process comes from
A.	H2O
B.	CO2
C.	NO2
D.	Glucose
Answer» B. CO2

Discussion

196.	Where does oxidative phosphorylation take place
A.	Chloroplast
B.	Mitochondrion
C.	Ribosome
D.	Lysosome
Answer» C. Ribosome

Discussion

197.	The enzyme that joins DNA fragments is
A.	Restriction endonuclease
B.	Lipase
C.	Ligase
D.	Peroxidase
Answer» D. Peroxidase

Discussion

198.	The Extracellular fluid of blood is
A.	RBC
B.	WBC
C.	Plasma
D.	Lymph
Answer» D. Lymph

Discussion

199.	The cells responsible for cell-mediated immunity are
A.	Lymphocytes
B.	T-lymphocytes
C.	B-lymphocytes
D.	Erythrocytes
Answer» C. B-lymphocytes

Discussion

200.	Algae and fungi are collectively known as
A.	Thallophytes
B.	Pteridophytes
C.	Bryophytes
D.	Spermatophytes
Answer» B. Pteridophytes

Discussion

Explore topic-wise MCQs in Geology.

The number of cephalic appendages in prawn is

The number of spinal nerves in rat is

A rhabditiform larva is found in the life cycle of

The non-biotic pollutant of underground water is

Chlorophyll contains

Who had proposed for the first time the double helix model of DNA

What is the distance of distinct vision (DDV) of a normal human eye

Which of the following organisms fix nitrogen in aquatic ecosystems

The average blood flow through kidneys per minute is

Plants which grow on saline soils are known as

A plant bud is

Heparin, the natural anticoagulant, is an example of

The most numerous, heterogeneous and versatile macromolecules of cells are

How many elements are said to be essential for the growth of crop plants

Who discovered the insecticidal properties of DDT

Which group of animals are exclusively marine

What is meant by "Zoonosis"

Which of the fungi is commonly called as bread mold

The experimental material used by Gregor Mendel is __

Dr. Birbal Sahni; a famous Indian botanist is concerned with __ studies

The numerous minute pores in the epidermis of a leaf are called

The transport of organic substances in plants is through

The deposition of cholesterol on the walls of blood vessels causes the arteries to lose their elasticity and get stiffened is called

During blood coagulation, thromboplastin is released by

In which of the following stages of silkworm, silk is secreted

Which one is important in photosynthesis to allows plants to absorb energy from light

Which among the following is the best method of judging age of a Tree

A plant leaf appears to be green because it

What does stomach acid mostly consist of

Which one of the following is a digestive hormone

The top chambers of human heart are called

What is the pH value range of human blood

Entamoeba Histolytica is a

The muscle which separate the right side and left side of heart is known as

How many chambers does a Human heart have

Which one is found in a pair in each Chromosome

Which one is the largest gland of human body

What is the name of the sugar found in milk

RNA differs from DNA in having

Which vitamin is necessary for blood clotting

The smallest unit that is capable of carrying out life functions is known as

Who is known as father of modern microbiology

Who is known as Father of Modern Genetics

In plants, photosynthesis mainly occurs in the

The oxygen released during photosynthesis process comes from

Where does oxidative phosphorylation take place

The enzyme that joins DNA fragments is

The Extracellular fluid of blood is

The cells responsible for cell-mediated immunity are

Algae and fungi are collectively known as