Biology MCQs for Class 11 Chapter Wise for NEET. We covered all the Biology MCQs for Class 11 Chapter Wise for NEET in this post for free so that you can practice well for the exam.
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MCQ on NEET Biology for Students
Enzymes are diverse from inorganic catalysts as they
(A) have a high diffusion rate
(B) work at high temperatures
(C) are being used up in reactions
(D) are proteinaceous in nature
Option d – are proteinaceous in nature
Which of the following is NOT an example of prokaryotes?
(A) Pleuro pneumonia-like organisms
(B) Mycoplasma
(C) Protists.
(D) Both (A) and (B)
Option c – Protists.
Alary muscles are associated with ……….. system of cockroach.
(A) Digestive
(B) Circulatory
(C) Respiratory
(D) Excretory
Option b – Circulatory
During an enzymatic reaction, the transition state structure of the substrate formed is
(A) permanent and stable
(B) permanent but unstable
(C) transient but stable
(D) transient and unstable
Option d – transient and unstable
The middle lamella which holds the neighboring plant cells together is mainly composed of
(A) suberin
(B) calcium pectate
(C) cellulose
(D) lignin
Option b – calcium pectate
Watson and Crick described the salient features of ……
(A) Z-DNA
(B) B-DNA
(C) A-DNA
(D) D-DNA
Option b – B-DNA
Identify the function of centrioles.
(A) Formation of spindle fibers
(B) Formation of the nucleolus
(C) Initiation of cell division
(D) Formation of cell plate
Option a – Formation of spindle fibers
All the given below are associated with the excretory system of cockroaches, except
(A) Maxillary palps
(B) Urecose glands
(C) Nephrocytes
(D) Malpighian tubules.
Option a – Maxillary palps
…….. are glycerides of fatty acid with low melting points.
(A) Trihydroxy propane
(B) Trichloroacetic acids
(C) Nucleic acids
(D) Oils
Option d – Oils
…….. is an exchange of chromosomal segments between maternal and paternal chromatids during meiosis.
(A) Linkage
(B) DNA multiplication
(C) Crossing over
(D) Dominance
Option c – Crossing over
In cockroaches, during respiration, the exchange of gases takes place at the …….. by diffusion.
(A) Tracheoles
(B) Ganglia
(C) Ommatidia
(D) Maxillary palps
Option a – Tracheoles
How does an enzyme act on a substrate?
(A) By increasing the pH
(B) By decreasing the pH
(C) By increasing the energy of activation
(D) By reducing the energy of activation
Option d – By reducing the energy of activation
Identify the phase of gamete formation which requires the presence of the enzyme recombinase.
(A) Pachytene
(B) Leptotene
(C) Diplotene
(D) Zygotene
Option a – Pachytene
From the following which is NOT a feature of enzymes?
(A) They speed up the rate of biochemical reactions.
(B) They are proteinaceous in nature.
(C) They are used up in reactions.
(D) They are specific in nature.
Option c – They are used up in reactions.
Identify the role of the Golgi complex.
(A) Trapping the light and transforming it into chemical energy
(B) Digesting proteins and carbohydrates
(C) Energy-transferring organelles
(D) Post-translational modification of proteins and glycoxidation of lipids
Option d – Post-translational modification of proteins and glycoxidation of lipids
Identify the type of enzyme involved in the following reaction. S-G+S’→S + S’-G
(A) Hydrolase
(B) Polymerase
(C) Transferase
(D) Lyase
Option c – Transferase
In the synthesis phase of the cell cycle.
(A) amount of DNA doubles in each cell.
(B) amount of DNA is reduced to half in each cell.
(C) amount of DNA remains the same in each cell.
(D) chromosome number is increased.
Option a – amount of DNA doubles in each cell.
Which of the following is regarded as a unit of nervous tissue?
(A) Myelin sheath
(B) Neuroglia
(C) Axons
(D) Neurons
Option d – Neurons
Identify the enzyme that catalyzes inter-conversion of optical, geometrical, or positional isomers.
(A) Lyases
(B) Isomerases
(C) Hydrolases
(D) Ligases
Option b – Isomerases
Which phase of the cell cycle occupies the maximum part?
(A) Cytokinesis
(B) Meiotic phase
(C) Interphase
(D) Mitotic phase
Option c – Interphase
A glycosidic bond exists between …….. in the DNA molecule.
(A) Any two nitrogen bases
(B) Purines and pyrimidines
(C) Sugar and a nitrogen base
(D) Sugar and phosphate
Option c – Sugar and a nitrogen base
During which phase the duplication of the centriole occurs in the cytoplasm?
(A) ‘S’ phase
(B) Telophase
(C) Metaphase
(D) Prophase
Option a – ‘S’ phase
For which of the following purpose hepatic caeca is useful in cockroaches?
(A) Respiration
(B) Excretion
(C) Secretion of digestive juice
(D) Sensation
Option c – Secretion of digestive juice
Inulin is a type of ……… found in plant cells.
(A) vitamin
(B) polysaccharide
(C) protein
(D) lipid
Option b – polysaccharide
Identify a stage in which a chromosome is minimum coiled.
(A) Interphase
(B) Anaphase
(C) Metaphase
(D) Prophase
Option a – Interphase
We covered all the Biology MCQs for Class 11 Chapter Wise for NEET above in this post for free so that you can practice well for the exam.
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