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Grade 9 Science — Plant and animal tissues

Name the three meristems and the permanent tissues they become, match each plant and animal tissue to its job, and tell the joints and muscle types apart by what they do.

Name: ________________________

Before you start

Three simple permanent tissues, side by side and each one named.

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  1. 1. Thin walls the whole way round — parenchyma
  2. 2. Corners thickened with pectin — collenchyma
  3. 3. Thick lignified walls — sclerenchyma

Parenchyma is alive and stores food. Collenchyma is alive and bends. Sclerenchyma is mostly dead cells, and it is what makes a coconut husk hard.

  1. 1.Match each plant tissue to the job it does.

    • Xylem
    • Phloem
    • Epidermis
    • Sclerenchyma
    • Collenchyma
    • Carries water and minerals up from the roots
    • Carries food from the leaves to the rest of the plant
    • Supports a part while letting it bend
    • Forms the outer protective layer
    • Makes a part hard and strong with lignified walls

  2. 2.Sort each of these by the kind of joint it is.

    Groups: Ball and socket joint · Hinge joint · Pivot joint · Fixed joint

    • Shoulder
    • Knee
    • Elbow
    • Neck, where the skull meets the backbone
    • Bones of the skull

  3. 3.How many pairs of ribs make up the human rib cage? Answer with a number.

  4. 4.Put a message's journey through a neuron in order, starting from The dendrites pick the message up from another neuron.

    • The cell body, which holds the nucleus, takes it in
    • The dendrites pick the message up from another neuron
    • The axon carries it away as a long fiber
    • The axon terminals pass it on to the next cell

  5. 5.A lawn is mown short and grows back bushy within a fortnight. Which meristem accounts for that?

    • a) The lateral meristem, in a ring inside the stem
    • b) The apical meristem, at the shoot tips
    • c) No meristem — the old leaves simply stretch
    • d) The intercalary meristem, at the base of the internodes

  6. 6.This is a neuron. Tap the part that picks up signals coming from other neurons.

    Write the number of the part.

    1234

  7. 7.Which simple permanent tissue has thick walls stiffened with lignin and is made mostly of dead cells?

    • a) Epidermis
    • b) Collenchyma
    • c) Parenchyma
    • d) Sclerenchyma

  8. 8.What are the pores in a leaf's epidermis called? Give the one word.

Answer key — Grade 9 Science — Plant and animal tissues

  1. 1. Xylem → Carries water and minerals up from the roots; Phloem → Carries food from the leaves to the rest of the plant; Epidermis → Forms the outer protective layer; Sclerenchyma → Makes a part hard and strong with lignified walls; Collenchyma → Supports a part while letting it bend
  2. 2. Shoulder → Ball and socket joint; Elbow → Hinge joint; Knee → Hinge joint; Neck, where the skull meets the backbone → Pivot joint; Bones of the skull → Fixed joint
  3. 3. 12
  4. 4. 1. The dendrites pick the message up from another neuron 2. The cell body, which holds the nucleus, takes it in 3. The axon carries it away as a long fiber 4. The axon terminals pass it on to the next cell
  5. 5. d) The intercalary meristem, at the base of the internodes
  6. 6. 1 — The branching fibers on the left
  7. 7. d) Sclerenchyma
  8. 8. stomata