Page 26 - 新思维科学学生用书7 样章

1 Cells

For each letter, A–E, write the name of the cell part and its function.

Choose from these lists: [5]
Names:

mitochondrion cell membrane nucleus cell wall chloroplast

Functions:
holds the cell in shape
controls what goes in and out of the cell
where photosynthesis takes place

where energy is released from nutrients
controls the activities of the cell
1.4 The diagram shows a specialised cell from the human body.

a What is the name of this cell? [1]

b What is the function of this cell? [1]
c Describe how the cell is adapted to carry out its function. [1]
d Name the system in the human body that this cell is part of. [1]

1.5 These sentences are about the way that cells are grouped together in
complex organisms.
Copy and complete each sentence. Choose from the list.

cell tissue organ organ system

a In a complex organism, such as a human or a plant, similar cells are grouped
together to form a . [1]
b The stomach is an example of an . [1]
c The heart and blood vessels are all part of the same . [1]

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