The exercise

Five questions covering the chapter. Work each one before looking anything up — the multiple-choice parts in particular are all answered by the characteristic lists.

1. Underline the correct answer

Six parts. Each has exactly one correct option.

(i) Which of the following is the non-living cell type? 1. fibres 2. parenchyma 3. collenchyma 4. sieve cells
(ii) Which is the complex tissue type? 1. parenchyma 2. xylem 3. sclerenchyma 4. collenchyma
(iii) On observing a plant tissue the following characteristics were seen: the cells are isodiametric; there is a large vacuole; they are living cells. Which tissue is it? 1. sclerenchyma 2. collenchyma 3. xylem 4. parenchyma
(iv) Which statement about a skeletal muscle fibre is correct? 1. It takes a spindle shape. 2. It bears striations. 3. It is uninucleate. 4. It never tires.
(v) A student examining an animal tissue under a light microscope observed that it was situated on a basement membrane. Which could that tissue be? 1. epithelial tissue 2. connective tissue 3. muscle tissue 4. nervous tissue
(vi) Which of the following statements about cardiac muscle fibres is correct? 1. They are unstriated. 2. They bear intercalated discs. 3. They are multinucleate. 4. They are long cylindrical cells.

2. Meristematic against permanent

Write down two differences between meristematic tissue and permanent tissue.

3. Name the plant tissues

Name the tissue types shown in the figures below.

Figure to be added

Exercise question 3 — three micrographs of plant tissue: cells with very thick red-stained walls packed with no gaps; long narrow cells in a longitudinal view with thickened walls; and large pale rounded cells with thin walls and small gaps between them.

4. Cardiac against skeletal

State two structural differences between the cardiac muscle fibres and the skeletal muscle fibres of a human being.

5. Name the animal tissues

Identify and name the animal tissues shown in the figures below.

Figure to be added

Exercise question 5 — three drawings of animal tissue: a sheet of tightly packed cells sitting on a thin layer beneath them; a cell with a rounded body, many short branching processes and one long process leaving it; and long fibres crossed by regular bands with nuclei at their edges.

Questions 2 and 4 each want two differences, not a description

A common way to lose these marks is to write a paragraph about each tissue and leave the reader to find the differences. Write them as pairs: this tissue does X, that tissue does Y. The comparison tables in this chapter are laid out that way for exactly this reason.