Biology-B1-Differentiation and Specialisation 0.0 / 5 ? BiologyCells, tissues and organsGCSEAQA Created by: tonisha_Created on: 17-10-22 19:41 Differentiation is the process by which a cell? changes and becomes specialised for its job 1 of 24 What three animal cells are specialised for their job? sperm cell nerve cell muscle cell 2 of 24 SPERM CELL ---------- A sperm cell has a _______ head to help it? has a streamlined head to help it swim to the egg 3 of 24 It also has a long ______ to help it? long tail to help it swim to the ovum (egg) 4 of 24 It has lots of ________ to provide it with _____ ? has lots of mitochondria to provide it with energy 5 of 24 It also contains ____ which help it _____ its way through? also contains enzymes which help it digest its way through the outer lay of the egg 6 of 24 NERVE CELL ---------------- what is the function of a nerve cell? to carry electrical impulses/signals from one part of the body to another 7 of 24 A nerve cell is ____ to _____ _____ distance? is long to cover more distance 8 of 24 The nerve cell also has m_____ to speed up the _____ of nerve impulses and also insulates the ____? nerve cell has myelin to speed up the transmission of nerve impulses and also insulates the axon 9 of 24 The nerve cell also has d____ which increase the _____ _____ so other nerve cells can _____ more easily and form a _____? also have dendrites which increase the surface area so that other nerve cells can connect more easily and form a network 10 of 24 MUSCLE CELLS ----------------- What is the function of a muscle cell? to contract 11 of 24 Muscle cells contain ______ _____ which allow them to change their ______. contain protein fibres which allow them to change their length 12 of 24 They are also packed with ______ to provide them with_____ for muscle _____? packed with mitochondria to provide them with energy for muscle contraction 13 of 24 What three plant cells are specialised? root hair cell xylem phloem 14 of 24 ROOT HAIR CELL --------------------- What is the function of a root hair cell? to absorb water and minerals 15 of 24 What is the effect of having root hair cells? it increases the surface area of the root 16 of 24 They also do not contain what? chloroplasts 17 of 24 Why? since they are underground 18 of 24 XYLEM --------- What is the purpose of the xylem? to carry water and dissolved minerals from the roots to the leaves 19 of 24 The xylem has thick _____ made of _____ to support the plant? has thick walls made of lignin to support the plant 20 of 24 The xylem tube is also _____ to allow water and dissolved minerals to _____ through easily? also hollow to allow water and dissolved minerals to flow through easily 21 of 24 PHLOEM ------------ What is the function of the phloem? to carry dissolved sugars around the plant 22 of 24 The phloem has ________ cells connected by ____ which contain _______ to provide ____. has companion cells connected by pores which contain mitochondria to provide energy 23 of 24 The phloem also contain very few sub______ _____ to allow the dissolved sugars to _____ through easily. very few sub cellular structures to allow the dissolved sugars to flow through easily 24 of 24
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