SB2c - Growth in Plants Flashcards

1
Q

What are the 4 organs of plants?

A

Leaves
Flowers
Stem
Roots

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2
Q

Name the three regions involved in the growth of plants?

A

Meristem
Zone of elongation
Zone of differentiation

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3
Q

What happens at the Meristem?

A

the region of cell division (mitosis

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4
Q

What happens at the zone of elongation?

A

cells grow longer

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5
Q

What happens at the zone of differentiation?

A

plant cells become specialised
into different types of cells eg. Root hair cells

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6
Q

Describe Root hair cells and explain how they are adapted to carry their function.

A

Root hair cells have long extensions that increases surface area for
absorbing water and dissolved mineral salts

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7
Q

Describe Palisade cells and explain how they are adapted to carry their function.

A

Palisade cells in the leaf have many chloroplasts that contain chlorophyll
for capturing energy from light for photosynthesis, which takes place in these
cells.

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8
Q

Describe Guard cells and explain how they are adapted to carry their function.

A

Guard cells are able to change shape and to open and close the
pore/stoma between them, and contain many mitochondria to provide energy
for this

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9
Q

Growth can be measured in many ways, including change in:

A
  • Height
  • Leaf surface area
  • Mass
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