Page 15 - ACE YR IGCSE A TOP APPROACH TO BIO

6 Which of the following shows the correct A The bacteria and dust cannot be filtered
order for the increasing level of by cilia.
organisation? B The bacteria and dust cannot be
A tissue → cell → system → organ → trapped by cilia.
organism C Mucus cannot be produced by cilia.
B cell → organ → tissue → organism → D Mucus cannot be carried towards the
system throat.
C cell → tissue → organ → system →
organism 9 Which of the following best describes the
D organism → tissue → cell → system main tissue and organ in the system
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→ organ process?
process tissue organ
Clone May / June 2019 A digestion in cardiac small
7 The diagram shows a xylem vessel in a humans muscles intestine
plant stem. Given that the magnification B photosynthesis epidermis leaves
is ×500 and the length of line XY is in plants
3.5 cm. What is the actual width of the C translocation phloem stem
xylem vessels along the line XY? in plants
D circulation platelets blood
of blood in
humans

X Y
10 Which of the following best describes the
difference between red blood cells and liver
cells?
A Red blood cells have cell membrane
while liver cells do not.
A 7.0 μm C 70.0 μm B Red blood cells have nucleus while
B 14 μm D 140 μm liver cells do not.
C Red blood cells do not have nucleus
8 Which of the following best describes the while liver cells do.
result of the destruction of cilia in the D Red blood cells do not have chloroplasts
respiratory tract caused by smoking? while liver cells do.

Part 2: Structured Questions
Answer all questions.
1 Fig. 1.1 shows the microscopic diagram of a plant cell.

Fig. 1.1

(a) Label each of the cell components of the plant cell in Fig 1.1. There are a total of eight
components to be labelled. (Nucleus, Rough endoplasmic reticulum, Mitochondrion,
Chloroplast, Vacuole, Cell membrane, Cell wall, Cytoplasm) [8]

Chapter 2 Organisation of the Organism 13

Chapter 2.indd 13 30/03/2022 3:08 PM