FBISE Class 9th (SSC-l)
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3
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Total MCQs
FBISE Class 9th (SSC-l)
Answer: Parenchyma stores food and water; in some cases it also carries out photosynthesis or supports buoyancy.
Answer: Unlike collenchyma, sclerenchyma cells develop thick lignified walls and mostly lose their protoplasts at maturity.
Answer: Xylem conducts water and dissolved minerals from the roots to other parts of the plant.
Answer: Phloem is composed mainly of sieve tubes and companion cells along with phloem fibres and parenchyma.
Answer: Mature sieve tubes lack a nucleus, so companion cells help in their metabolism and food transport.
Answer: Epidermis is the outermost protective layer of leaves, stems and roots.
Answer: Cork cells are impregnated with suberin, which makes them impermeable to water and gases.
Answer: Epithelial tissue covers and lines body surfaces and cavities, providing protection and absorption.
Answer: Squamous epithelium is made of flat, thin cells that fit closely together like floor tiles.
Answer: Cuboidal epithelium, with cube-shaped cells, lines kidney tubules and gland ducts where secretion and absorption occur.
Answer: Tall columnar cells line the intestine, where they help in absorption of digested food.
Answer: Ciliated epithelium bearing hair-like cilia lines the respiratory tract and helps sweep mucus and dust upward.
Answer: Nervous tissue is made of neurons that conduct nerve impulses for coordination and control.
Answer: Blood is a connective tissue with a fluid matrix called plasma.
Answer: Red blood cells contain haemoglobin, which binds and transports oxygen.
Answer: White blood cells protect the body by destroying pathogens and producing antibodies.
Answer: Platelets help in blood clotting, preventing excessive blood loss from wounds.
Answer: Plasma is the pale-yellow liquid part of blood in which blood cells are suspended.
Answer: Bone matrix is hardened by deposits of calcium salts such as calcium phosphate, making bones rigid.
Answer: Cartilage is a flexible, semi-rigid connective tissue that supports and cushions joints, the nose and the ears.