Biology Class 9 Chapter 1 MCQs. We covered all the Biology Class 9 Chapter 1 MCQs in this post for free so that you can practice well for the exam.
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MCQ on Biology 9th Class for NEET Students
Which among these is the CORRECT combination of aquatic mammals?
(A) Seals, Dolphins, Sharks
(B) Dolphins, Seals, Trygon
(C) Whales, Dolphins, seals
(D) Trygon, Whales, Seals
Option c – Whales, Dolphins, seals
Choose the correctly matched pair :
(A) Tendon – Specialized connective tissue
(B) Adipose tissue – Dense connective tissue
(C) Areolar tissue – Loose connective tissue
(D) Cartilage – Loose connective tissue
Option c – Areolar tissue – Loose connective tissue
Which of the following statements is INCORRECT?
(A) Glycine is an example of a lipid.
(B) Lecithin contains a phosphorus atom in its structure.
(C) Tyrosine possesses an aromatic ring in its structure.
(D) Sulphur is an integral part of cysteine.
Option a – Glycine is an example of a lipid.
In mammals, milk is digested by the action of
(A) rennin
(B) amylase
(C) intestinal bacteria
(D) invertase
Option a – rennin
Globulins contained in human blood plasma are primarily involved in
(A) osmotic balance of body fluids
(B) oxygen transport in the blood
(C) clotting of blood
(D) defense mechanisms of the body
Option d – defense mechanisms of the body
Read the following statements. i. Bands are dark bands and contain myosin. ii. I bands are light bands and contain actin. iii. During muscle contraction, the A band contracts. iv. The part between the two Z lines – is called a sarcomere. V. The central part of the thin filament, not overlapped by the thick filament is called the H zone. Of the above statements
(A) i, ii, and iii are correct, while iv and v are incorrect.
(B) i, iii, v are correct, while ii, iv are incorrect.
(C) i and ii are correct, while iii, iv, and v are incorrect
(D) i, ii, and iv are correct, while iii and v are incorrect.
Option d – i, ii, and iv are correct, while iii and v are incorrect.
The Thorn of Bougainvillea and tendril of Cucurbita are examples of
(A) vestigial organs
(B) retrogressive evolution
(C) analogous organs
(D) homologous organs
Option d – homologous organs
Genetic engineering is possible, because
(A) we can cut DNA at specific sites by endonucleases like DNase I.
(B) restriction endonucleases purified from bacteria can be used in vitro.
(C) the phenomenon of transduction in bacteria is well underwood.
(D) we can see DNA in the electron microscope.
Option b – restriction endonucleases purified from bacteria can be used in vitro.
A person is injected with globulins against hepatitis. It is
(A) Naturally acquired active immunity
(B) Naturally acquired passive immunity
(C) Artificially acquired active immunity
(D) Artificially acquired passive immunity
Option d – Artificially acquired passive immunity
Which one of the following living organisms completely lacks a cell wall?
(A) Cyanobacteria
(B) Sea-fan (Gorgonia)
(C) Saccharomyces
(D) Blue-green algae
Option b – Sea-fan (Gorgonia)
Which of these is NOT an advantage of genetically modified crops?
(A) Increases efficiency of mineral usage in plants.
(B) Reduces the reliance on chemical pesticides.
(C) Enhances the nutritional value of food.
(D) Increase the post-harvest losses
Option d – Increase the post-harvest losses
ZIFT stands for
(A) Zygote Intra uterine transfer
(B) Zygote inter uterine transfer
(C) Zygote inter-fallopian transfer
(D) Zygote intra-fallopian transfer
Option d – Zygote intra-fallopian transfer
Which one of the following organism’s plasmid was used successfully for the first time as a vector by Stanley Cohen and Herbert Boyer?
(A) Salmonella typhimurium
(B) Streptococcus pneumoniae
(C) Staphylococcus aureus
(D) Rhizobium leguminosarum
Option a – Salmonella typhimurium
Which of the following CAN NOT be detected in a developing foetus by amniocentesis?
(A) Klinefelter’s syndrome
(B) Sex of the foetus
(C) Down’s syndrome
(D) Jaundice
Option d – Jaundice
The following factors indicate improved reproductive health in society. Choose the correct option. i. Better detection and cure of disease ii. Better post-natal care iii. Medically assisted deliveries iv. Increased MMR Select the code for the correct answer from the options given below.
(A) ii, iii and iv only
(B) i, ii and iii only
(C) i, iii and iv only
(D) i, ii and iv only
Option b – i, ii and iii only
The term ‘active immunity’ means ( Biology Class 9 Chapter 1 MCQs )
(A) resistance developed after the disease
(B) resistance developed before the disease
(C) resistance rate of heartbeat
(D) an increasing quantity of blood
Option a – resistance developed after the disease
The difference between spermiogenesis and spermiation is
(A) in spermiogenesis spermatozoa from Sertoli cells are released into the cavity of seminiferous tubules, while in spermiation spermatozoa are formed.
(B) in spermiogenesis spermatozoa are formed, while in spermiation spermatids are formed.
(C) in spermiogenesis spermatids are formed, while in spermiation spermatozoa are formed.
(D) in spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules.
Option d – in spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules.
Haemozoin is an
(A) precursor of hemoglobin.
(B) the toxin released from Streptococcus-infected cells.
(C) the toxin released from Plasmodium-infected cells.
(D) the toxin released from Haemophilus-infected cells.
Option c – the toxin released from Plasmodium-infected cells
Archaeopteryx is a connecting link between
(A) Pisces and amphibians
(B) amphibians and reptiles
(C) reptiles and birds
(D) birds and mammals
Option c – reptiles and birds
Which of the following statement is CORRECT in relation to the endocrine system?
(A) Adenohypophysis is under direct neural regulation of the hypothalamus.
(B) Organs in the body like the gastrointestinal tract, heart, kidney, and liver do not produce any hormones.
(C) Non-nutrient chemicals produced by the body in trace amounts that act as an intercellular messenger are known as hormones.
(D) Releasing and inhibitory hormones are produced by the pituitary gland.
Option c – Non-nutrient chemicals produced by the body in trace amounts that act as an intercellular messenger are known as hormones.
Which one of the following statements is CORRECT?
(A) Fertilization in humans takes place in the womb.
(B) Zygote contains a haploid number of chromosomes.
(C) Fertilization membrane avoids polyspermy.
(D) Primary oocyte inhibits the process of oogenesis.
Option c – Fertilization membrane avoids polyspermy.
The drugs which are commonly abused are
(A) opioids
(B) coca alkaloids
(C) cannabinoids
(D) all of these
Option d – all of these
The middle piece of the sperm contains
(A) proteins
(B) mitochondria
(C) centriole
(D) nucleus
Option b – mitochondria
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