1.26 Growth of Plants

Like you, plants grow through cell growth and division (_______) and develop through cell differentiation or specialization.

Tags

NGSS.HS-LS1-4

plants which complete their growth from seed to flower and seed in a single season are ______ plants.

• perennial

• biennial

• annual

The two types of secondary meristem are both named _______ (meaning “exchange” or “change”).

___________ have the most potential for growth, continuing from season to season indefinitely; some prairie buffalo grass plants are thought to be 10,000 years old, having developed from seeds during the last Ice Age!

• Perennials

• Annuals

• Biennials

These three types of meristem are considered ______ ______ because they allow growth in length or height, which is known as primary growth.

The key to plant growth is _____, a perpetually embryonic tissue which can continue to divide and differentiate (specialize) into mature cells with specific functions.

• peristem

• meristem

• ameristem

• root system

Tags

NGSS.HS-LS1-4

_______ _____ lies between the epidermis and the phloem, and replaces the epidermis of roots and stems with bark, one layer of which is cork.

• Secondary meristems

• Vascular cambium

• Cork cambium

• lateral meristems

Meristem cells are small and thin-walled, and lack _____ and _____.

• vacuoles/plastids

• tissue/stem

• flower/root

• flower/leaf

______ _____ are found at the apex, or tip, of roots and buds, allowing roots and stems to grow in length, and leaves and flowers to differentiate.

In grasses, meristems at the base of the leaf blades allows regrowth after grazing by herbivores – or mowing by lawnmowers.

• omnivore

• herbivores

• carnivore

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-3

NGSS.MS-LS2-4