Growth and Development

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  • Created by: joshd
  • Created on: 17-03-14 17:29
How can you measure the growth of an organism through size?
The organism's height, length, width or circumference can be measured.
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How can you measure the growth of an organism through wet mass?
Organisms contain a lot of water. The mass of the organism depends on how much water it has gained or last (e.g,through drinking or sweating). The wet mass of the organism is its mass including all the water in its body - it can vary each day a lot.
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How can you measure the growth of an organism through dry mass?
=The mass of an organism with no water in its body. This doesn't vary in the same way as wet mass, but you can only measure it once the organism's dead. The dead organism is dried out by leaving it in a hot oven overnight-then what's left is weighed
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How do plants and animals grow and develop through cell differentiation?
The process by which a cell changes to become specialised for its job.
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How do plants and animals grow and develop through cell division?
By mitosis.
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How do plants and animals grow and develop through cell elongation?
Where a plant cell expands, making the cell bigger and so making the plant grow. It happens only in plants.
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How do plants and animals grow?
Plants and animals grow differently.
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How do growth in animals occur? How do animals tend to grow? (1)
Growth in animals happens by cell division. Animals tend to grow while they're young, and then they reach full growth and stop growing.
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What happens to the cells compared to a young and older person (2)
So when one is young, cells divide at a fast rate but once one is an adult, most cell division is for repair - the cells divide to replace old or damaged cells. This also means, in most animals, cell differentiation is lost at an early stage.
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How do plants often grow?
Continuously,even really old trees will keep putting out new branches.So,plants continue to differentiate to develop new parts(e.g, roots,leaves)Growth in height is mainly due to cell elongation-cell divi. usually happens in the tips of roots+shoots.
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What are growth charts used for?
To assess a child's growth over time, so that an overall pattern in development can be seen and any problems highlighted (e.g, obesity, malnutrition, dwarfism, etc.)
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What is an example of when a growth chart is used? What measurements are taken? What are the results plotted on?
A baby's growth is regularly monitored after birth to make sure it's growing normally. Three measurements are taken - length, mass and head circumference. The results are plotted on average growth charts.
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Other cards in this set

Card 2

Front

How can you measure the growth of an organism through wet mass?

Back

Organisms contain a lot of water. The mass of the organism depends on how much water it has gained or last (e.g,through drinking or sweating). The wet mass of the organism is its mass including all the water in its body - it can vary each day a lot.

Card 3

Front

How can you measure the growth of an organism through dry mass?

Back

Preview of the front of card 3

Card 4

Front

How do plants and animals grow and develop through cell differentiation?

Back

Preview of the front of card 4

Card 5

Front

How do plants and animals grow and develop through cell division?

Back

Preview of the front of card 5
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NuzhaNoukri

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On the second flashcard you wrote gained or last. Change it!

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