CBSE Class 11 Biology HOTs Plant Growth and Development

Plant Growth and Development MCQ Questions for NCERT Class 11 Biology Plant Growth and Development Question. Ethylene is not directly applied in the field as a gas due to its high diffusion rate. Which compound is used to overcome this limitation?(a) Ethephon (b) Agent orange(…

CBSE Class 11 Biology HOTs Respiration in Plants

MCQ Questions for NCERT Class 11 Biology Respiration in Plants  Question. The adjoining diagram refers to mitochondrial electron transport chain. Identify P, Q, R, S, T. (a) P-Matrix, Q-Outer membrane, R-FADH2, S-NADH+H+, T-2H+(b) P-Inter membrane space, Q-Matrix, R-NADH + H…

CBSE Class 11 Biology HOTs Photosynthesis in Higher Plants

Photosynthesis in Higher Plants Important Questions for NCERT Class 11 Biology Photosynthesis in Higher Plants Ques. One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria…

CBSE Class 11 Biology HOTs Mineral Nutrition

Mineral Nutrition Questions: Q1. It is observed that deficiency of a particular element showed its symptoms initially in older leaves and than younger leaves. • Does it indicate that the element is actively mobilized or relatively immobile? • Name two elements which are highly…

CBSE Class 11 Biology HOTs Chemical Co-Ordination And Integration

Question. Moon face, buffalo hump, centripetal deposition of fat in belly occurs due to the abnormal functioning of(a) adrenal medulla(b) adrenal cortex(c) anterior pituitary(d) thyroid gland. Answer. B Question. Study the following flow chart that shows calcium regulation by…

CBSE Class 11 Biology HOTs Locomotion And Movement

Locomotion And Movement MCQ Questions for NCERT Class 11 Biology Locomotion and Movement Ques. Calcium is important in skeletal muscle contraction because it(a) binds to troponin to remove the masking of active sites on actin for myosin(b) activates the myosin ATPase by…

CBSE Class 11 Biology HOTs Excretory Products And Their Elimination

MCQ Questions for NCERT Class 11 Biology Excretory Products and Their Elimination Ques. Select the option which shows correct matching of animal with its excretory organ and excretory product.Animal                     Excretory organ        Excretory product(a) Labeo (Rohu…

CBSE Class 11 Biology HOTs Body Fluids And Circulation

Body Fluids And Circulation MCQ Questions for NCERT Class 11 Biology Body Fluids and Circulation Ques. Match the following columns and select the correct option.  Column-I             Column - II(A) Eosinophils       (i) Immune response(B) Basophils         (ii) Phagocytosis(C…

CBSE Class 11 Biology HOTs Breathing and Exchanger of gases

MCQ Questions for NCERT Class 11 Biology Breathing and Exchange of Gases Question. For the occurrence of expiration,intrapulmonary pressure should be(a) equal to atmospheric pressure(b) more than atmospheric pressure(c) less than atmospheric pressure(d) either (a) or (c).…

CBSE Class 11 Biology HOTs Digestion And Absorption

Digestion And Absorption Questions: 1. Certain drugs are absorbed through layer of buccal cavity from the floor. What is the terminology for this kind of absorption? Ans1. Sublingual. 2. In case of dysentery people feel a sense of weakness. What may be reason for this? Ans2.…

CBSE Class 11 Biology HOTs Transport In Plants

Transport In Plants Questions: Q1.What is meant by Apoplast pathway? Why does it occur in cortex and not in endodermis? Ans 1. Passive absorption of water: A force develops during water absorption in the shoot system where transpiration is occurring. The transpiration than…

CBSE Class 11 Biology HOTs Cell Cycle And Cell Division

Cell Cycle And Cell Division Important Questions for NCERT Class 11 Biology Cell Cycle and Cell Division   Question. In which of the following stages terminalisation occurs?(a) Zygotene (b) Pachytene(c) Diakinesis (d) Diplotene Answer : C Question. Lampbrush chromosomes are…

CBSE Class 11 Biology HOTs Biomolecule

Biomolecule Q1. What do you mean by PUFA? Ans1 Poly Unsaturated Fatty Acid Q2. Identify the secondary protein and quaternary proteins in following examples. Trypsin, Haemoglobin protein, Myosin protein, Actin protein, Albumin, globulin. Ans2 Secondary Protein: Myosin protein,…

CBSE Class 11 Biology HOTs Cell And Its Structure

Cell And Its Structure Questions: Q1 What are the shortcomings of Scheleiden &Schwan theory? Who modified it and how? Ans 1 They did not explain the arise of new cells .Rudolph Virchow modified it and stated that cells arise from the pre existing cells. Q2 Differentiate…

CBSE Class 11 Biology HOTs Structural Organisation In Animals

Structural Organisation In Animals Questions: Q.1.Pawan bites by an ant on finger and after few minutes the finger swells up. How does it occur? Which cells are responsible for it? Ans.1. Mast cell release heparin which swells the fingers. Q.2. In stomach HCl is secreted by a…