Biology Class 11 Chapter 1 MCQs. We covered all the Biology Class 11 Chapter 1 MCQs in this post for free so that you can practice well for the exam.
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MCQ on Biology 11th Class for NEET Students
The number of floating ribs in the human body is
(A) 3 pairs
(B) 2 pairs
(C) 6 pairs
(D) 5 pairs
Option b – 2 pairs
The corpus callosum interconnects
(A) cerebral hemispheres
(B) cerebellar hemispheres
(C) corpora quadrigemina
(D) crura cerebri
Option a – cerebral hemispheres
Injury localized to the hypothalamus would most likely disrupt
(A) short-term memory
(B) co-ordination during locomotion
(C) executive functions, such as decision making
(D) regulation of body temperature
Option d – regulation of body temperature
The inspiratory capacity of humans is equal to
(A) TV + ERV
(B) TV+ERV + IRV
(C) TV + IRV
(D) ERV + IRV
Option c – TV + IRV
Read the following statements and select the correct option. Statement I: Electrical synapses are rare in our system. Statement II: Impulse transmission across an electrical synapse is slower than that across a chemical synapse.
(A) Both statements I and II are correct.
(B) Statement I is correct, and statement II is incorrect.
(C) Statement I is incorrect, and statement II is correct.
(D) Both statements I and II are incorrect.
Option b – Statement I is correct, and statement II is incorrect.
Fight-or-flight reaction cause activation of
(A) the parathyroid glands, leading to an increased metabolic rate.
(B) the kidney, leading to suppression of the renin-angiotensin-aldosterone pathway.
(C) the adrenal medulla, leading to increased secretion of epinephrine and norepinephrine.
(D) the pancreas leading to a reduction in blood sugar levels.
Option c – the adrenal medulla, leading to increased secretion of epinephrine and norepinephrine.
Select the CORRECT statement regarding the Schwann cells.
(A) Surround axon of myelinated nerve fiber
(B) Support muscle fibers
(C) Found in the Haversian system of bones
(D) Form basement membrane of the epithelium
Option a – Surround axon of myelinated nerve fiber
The notochord is present throughout life in
(A) Amphioxus
(B) Ascidia
(C) Salpa
(D) Doliolum
Option a – Amphioxus
Which one of the following statements about all four of Spongilla, Leech, Dolphin, and Penguin is CORRECT?
(A) Penguin is homeothermic while the remaining three are poikilothermic.
(B) Leech is a freshwater form while all others are marine.
(C) Spongilla has special collared cells called choanocytes, not found in the remaining three.
(D) All are bilaterally symmetrical.
Option c – Spongilla has special collared cells called choanocytes, not found in the remaining three.
Which of the following are correctly matched with respect to their taxonomic classification?
(A) Flying fish, Cuttlefish, Silverfish – Pisces
(B) Centipede, Millipede, Spider, Scorpion – Insecta
(C) Housefly, Butterfly, Tsetse fly, Silverfish – Insecta
(D) Spiny anteater, Sea urchin, Sea cucumber – Echinodermata
Option c – Housefly, Butterfly, Tsetse fly, Silverfish – Insecta
Identify the function of protein GLUT-4.
(A) Acts as an enzyme.
(B) Enables glucose transport into cells.
(C) Fights infectious agents.
(D) Functions as intercellular ground substance.
Option b – Enables glucose transport into cells.
A baby girl aged two years is admitted to playing school and passes through a dental check-up. The dentist observed that the girl had twenty teeth. Which teeth were absent?
(A) Incisors
(B) Canines
(C) Premolars
(D) Molars
Option c – Premolars
If the pancreas is removed, the compound which remains undigested is
(A) carbohydrates
(B) fats
(C) proteins
(D) all of these
Option d – all of these
Chylomicrons are
(A) micelles covered by a protein coat
(B) droplets along with triglycerides
(C) triglycerides along with monosaccharides
(D) glycerol droplets formed in the intestine after digestion of fats
Option a – micelles covered by a protein coat
Following are various symptoms of marasmus, EXCEPT
(A) oedema and swelling of body parts
(B) dry, wrinkled skin
(C) extreme emaciation of the body
(D) the decline in the growth rate
Option a – oedema and swelling of body parts
Which of the following animal does not undergo metamorphosis?
(A) Moth
(B) Tunicate
(C) Earthworm
(D) Starfish
Option c – Earthworm
Ascaris and cockroaches resemble each other in
(A) having pseudocoelom
(B) exhibiting sexual dimorphism
(C) having nephridia
(D) exhibiting metameric segmentation
Option b – exhibiting sexual dimorphism
Which of the following are a matching set of phylum and its three examples?
(A) Cnidaria – Ctenoplana, Physalia, Aurelia
(B) Platyhelminthes – Planaria, Fasciola, Pheretima
(C) Mollusca – Loligo, Sepia, Octopus
(D) Porifera – Spongilla, Pennatula, Euspongia
Option c – Mollusca – Loligo, Sepia, Octopus
We covered all the biology class 11 chapter 1 MCQs above in this post for free so that you can practice well for the exam.
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