BioNotesClass VII Biology Annual Practice Paper 2026-27 - Question Paper
Annual examination practice question paper (80 marks, two hours) for Class VII Biology, prepared on the school blueprint.
Class VIII Biology Annual Practice Paper 2026-27 - Question Paper
Annual examination practice question paper (80 marks, two hours) for Class VIII 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 VIII 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) | (c) mitochondrion | (vi) | (a) bright petals and nectar | (xi) | (a) Monera |
| (ii) | (b) cell wall | (vii) | (b) seed | (xii) | (d) scurvy |
| (iii) | (a) epithelial tissue | (viii) | (a) hypogeal | (xiii) | (a) pepsin |
| (iv) | (b) xylem | (ix) | (c) ethyl alcohol and carbon dioxide | (xiv) | (b) hinge joint |
| (v) | (c) androecium and gynoecium | (x) | (b) bacilli | (xv) | (d) alveoli |
Answer the following questions [10 × 1]
| Q | Answer |
|---|---|
| (xvi) | Schleiden and Schwann (both required for the mark; accept Schleiden, Schwann and Virchow) |
| (xvii) | Dermis |
| (xviii) | World Health Organization |
| (xix) | Yeast (Saccharomyces) |
| (xx) | Any one: insects / water / birds / bats / animals |
| (xxi) | Ball and socket joint |
| (xxii) | Gall bladder |
| (xxiii) | Malnutrition is a condition caused by a diet that lacks, or has excess of, one or more nutrients (an unbalanced diet). |
| (xxiv) | Composting |
| (xxv) | Active immunity (artificially acquired) |
(i) [5 × 1]
(a) Ribosome
(b) Fertilisation
(c) Epidermis
(d) Absorption
(e) Fungi
(ii) [5 × 1]
Epithelial tissue – (b); Xylem – (c); Pepsin – (e); Hinge joint – (d); Saccharomyces – (a).
(iii) [5 × 1]
(a) True
(b) False — wind-pollinated flowers are small, dull, and have no scent or nectar.
(c) True
(d) False — bacteria are prokaryotic.
(e) False — deficiency of vitamin C causes scurvy; rickets is caused by deficiency of vitamin D.
(iv) [5 × 1]
(a) nucleus
(b) filament
(c) kwashiorkor
(d) melanin
(e) biodegradable
(v) [5 × 1]
(a) Mouth, oesophagus, stomach, small intestine, large intestine
(b) Nostrils, pharynx, trachea, bronchi, lungs
(c) Epidermis, dermis, subcutaneous tissue
(d) Cell, tissue, organ, organ system, organism
(e) Glucose, pyruvic acid, carbon dioxide and water
(i) [1] Cell wall.
(ii) [2] (any two) Protects the cell contents; controls the entry and exit of substances (selectively permeable); gives shape to animal cells.
(iii) [2] (any two)
| Prokaryotic cell | Eukaryotic cell |
|---|---|
| No well-defined nucleus (nucleoid) | Well-defined nucleus with nuclear membrane |
| No membrane-bound organelles | Membrane-bound organelles present |
| Smaller in size, e.g. bacteria | Larger in size, e.g. plant and animal cells |
(iv) [2] Epithelial, connective, muscular and nervous tissue (four correct = 2 marks; two or three correct = 1 mark).
www.bionotes.in(v) [3] (any three)
| Plant cell | Animal cell |
|---|---|
| Cell wall present | Cell wall absent |
| Plastids (chloroplasts) present | Plastids absent |
| Large central vacuole | Small, temporary vacuoles |
| Centrosome absent (in higher plants) | Centrosome present |
www.bionotes.in(i) [1] Androecium (stamens).
www.bionotes.in(ii) [2] (any two)
| Self-pollination | Cross-pollination |
|---|---|
| Pollen from the anther falls on the stigma of the same flower/plant | Pollen is transferred to the stigma of a flower of another plant of the same species |
| Does not need an external agent | Needs an agent like wind, water or insects |
| Offspring show less variation | Offspring show more variation and are stronger |
(iii) [2] In double fertilisation, one male gamete fuses with the egg to form the zygote [1], and the other male gamete fuses with the two polar nuclei (triple fusion) to form the endosperm nucleus [1].
(iv) [2] (any two)
| Hypogeal germination | Epigeal germination |
|---|---|
| Cotyledons remain below the ground | Cotyledons are brought above the ground |
| Hypocotyl does not elongate | Hypocotyl elongates |
| Example: maize, gram, pea | Example: bean, castor, cotton |
(v) [3] Conditions: water, air (oxygen), suitable temperature [1½]. Any one experiment explained [1½] — e.g. air: seeds in a flask with pyrogallic acid and KOH (no air) do not germinate, while seeds in the control flask do; water: dry seeds on cotton without water do not germinate.
www.bionotes.in(i) [1] Monera.
(ii) [2] (any two) Curdling of milk (Lactobacillus); nitrogen fixation in root nodules (Rhizobium); production of antibiotics and vaccines; decomposition of dead matter; sewage treatment; curing of tea and tanning of leather.
www.bionotes.in(iii) [2] (any two) Yeast is used in baking bread and brewing; fungi are used to make antibiotics (penicillin); edible mushrooms are used as food; cheese processing; decomposers.
(iv) [2] Glucose + Oxygen → Carbon dioxide + Water + Energy. (Reactants 1 mark; products 1 mark.)
(v) [3] (any three)
| Aerobic respiration | Anaerobic respiration |
|---|---|
| Takes place in the presence of oxygen | Takes place in the absence of oxygen |
| Complete breakdown of glucose | Incomplete breakdown of glucose |
| Products: CO₂, water and a large amount of energy | Products: alcohol and CO₂ (or lactic acid) and little energy |
| Occurs in cytoplasm and mitochondria | Occurs only in the cytoplasm |
(i) [1] Vitamin D.
(ii) [2] A balanced diet contains all the nutrients (carbohydrates, proteins, fats, vitamins, minerals, water and roughage) in the right proportions [1]. It is important to supply energy, promote growth and repair, and prevent deficiency diseases [1].
(iii) [2] (a) Bile emulsifies fats and makes the food alkaline [1]; (b) Hydrochloric acid kills germs in food and provides an acidic medium for pepsin to act [1].
(iv) [2] I 2/2, C 1/1, PM 2/2, M 3/3 (= 32 teeth). (Correct formula 2 marks; if numbers are right but notation is incomplete, 1 mark.)
www.bionotes.in(v) [3] Villi are finger-like projections of the small intestine wall [1]; they greatly increase the surface area for absorption [1]; each villus has a network of blood capillaries (and a lacteal), which absorb digested food into the blood [1].
www.bionotes.inClass VII Biology Annual Practice Paper 2026-27 - Question Paper
Annual examination practice question paper (80 marks, two hours) for Class VII Biology, prepared on the school blueprint.
Class VIII Biology Annual Practice Paper 2026-27 - Question Paper
Annual examination practice question paper (80 marks, two hours) for Class VIII Biology, prepared on the school blueprint.