BioNotesClass XI Biology Annual Practice Paper 2026-27 - Question Paper
Annual examination practice question paper (70 marks, three hours) for Class XI Biology, prepared on the school blueprint.
Class VI Biology Annual Practice Paper 2026-27 - Question Paper
Annual examination practice question paper (80 marks, two hours) for Class VI Biology, prepared on the school blueprint.
Created by Titas Mallick
Biology Teacher • M.Sc. Botany • B.Ed. • CTET (CBSE) • CISCE Examiner
Online
Marking scheme and model answers for the Class VI Biology annual practice paper, 2026-27.
Marking Guidelines
Marks are awarded point-wise. Alternative correct answers in the student's own words should be accepted.
Choose the correct options [15 × 1]
| Q | Answer | Q | Answer | Q | Answer |
|---|---|---|---|---|---|
| (i) | (b) chlorophyll | (vi) | (b) cell wall | (xi) | (d) diaphragm |
| (ii) | (c) stomata | (vii) | (b) mouth | (xii) | (b) arteries |
| (iii) | (d) ovary | (viii) | (a) liver | (xiii) | (c) platelets |
| (iv) | (b) stamen | (ix) | (c) small intestine | (xiv) | (b) fat |
| (v) | (c) nucleus | (x) | (b) trachea | (xv) | (c) gills |
Answer the following questions [10 × 1]
| Q | Answer |
|---|---|
| (xvi) | Transpiration |
| (xvii) | Petiole |
| (xviii) | Calyx (made up of sepals) |
| (xix) | Robert Hooke |
| (xx) | Salivary amylase (ptyalin) |
| (xxi) | Carbon dioxide |
| (xxii) | Four |
| (xxiii) | Adaptations |
| (xxiv) | Any one: cholera / typhoid / dysentery / jaundice (hepatitis A) |
| (xxv) | Haemoglobin |
(i) [5 × 1]
(a) Lamina (leaf blade)
(b) Anther
(c) Chloroplast
(d) Oesophagus (food pipe)
(e) Plasma
(ii) [5 × 1]
Stomata – (e); Red blood cells – (b); Cactus – (a); Villi – (c); Gills – (d).
(iii) [5 × 1]
(a) True
(b) False — plant cells have a cell wall.
(c) False — digestion is completed in the small intestine; the large intestine absorbs water.
(d) True
(e) True
(iv) [5 × 1]
(a) chlorophyll
(b) cell
(c) liver
(d) veins
(e) fat
(v) [5 × 1]
(a) Mouth, oesophagus, stomach, small intestine
(b) Nose, pharynx, trachea, lungs
(c) Calyx, corolla, stamen, pistil
(d) Heart, arteries, capillaries, veins
(e) Cell, tissue, organ, organ system
(i) [1] Chlorophyll.
(ii) [2] Stomata allow the exchange of gases (carbon dioxide enters and oxygen leaves) [1], and allow loss of water vapour (transpiration) [1].
(iii) [2] Carbon dioxide + Water → (sunlight, chlorophyll) → Glucose (food) + Oxygen. (Reactants 1 mark; products and conditions 1 mark.)
(iv) [2] Reticulate venation – e.g. mango / peepal / hibiscus [1]; Parallel venation – e.g. grass / maize / wheat [1].
(v) [3] (any three, 1 mark each) Prepares food by photosynthesis; exchange of gases through stomata; loss of excess water by transpiration; storage of food (e.g. onion scales); protection (e.g. spines in cactus).
www.bionotes.in(i) [1] Pistil (carpel).
(ii) [2] Stigma, style and ovary (all three for 2 marks; two for 1 mark).
www.bionotes.in(iii) [2] Pollination is the transfer of pollen grains from the anther to the stigma of a flower.
(iv) [2] (any two, 1 mark each)
| Plant cell | Animal cell |
|---|---|
| Cell wall present | Cell wall absent |
| Large central vacuole | Vacuoles small or absent |
| Chloroplasts present | Chloroplasts absent |
(v) [3] (a) Nucleus: controls all the activities of the cell [1]. (b) Cell membrane: protects the cell and controls the entry and exit of substances [1]. (c) Vacuole: stores water, food and waste materials [1].
www.bionotes.in(i) [1] Ingestion.
(ii) [2] (any two) Salivary glands; liver; pancreas; gastric glands.
(iii) [2] Bile (produced by the liver and stored in the gall bladder) breaks large fat globules into tiny droplets (emulsification) [1], which helps in the digestion of fats [1].
(iv) [2] Nose (nostrils) → pharynx → larynx → trachea → bronchi → lungs. (All stages in correct order for 2 marks; one mistake: 1 mark.)
(v) [3] The diaphragm contracts and moves downward (flattens) [1]; the ribs move upward and outward [1]; the chest cavity becomes larger, so air rushes into the lungs [1].
www.bionotes.in(i) [1] Blood.
(ii) [2] (any two) Plasma; red blood cells (RBCs); white blood cells (WBCs); platelets.
(iii) [2] (a) White blood cells fight germs / protect the body from diseases [1]; (b) Platelets help in clotting of blood (stop bleeding) [1].
www.bionotes.in(iv) [2] Adaptation: a special feature or habit that helps an organism to survive in its surroundings [1]. Example: cactus has spines (leaves reduced to spines), thick fleshy stem to store water [1].
(v) [3] (any three) Bathing daily; washing hands with soap before eating and after using the toilet; brushing teeth twice a day; trimming nails; wearing clean clothes; eating clean and covered food; drinking boiled/clean water.
Class XI Biology Annual Practice Paper 2026-27 - Question Paper
Annual examination practice question paper (70 marks, three hours) for Class XI Biology, prepared on the school blueprint.
Class VI Biology Annual Practice Paper 2026-27 - Question Paper
Annual examination practice question paper (80 marks, two hours) for Class VI Biology, prepared on the school blueprint.