Answers- WS- Bacteria's role in the world.docx - science4all-bps ...

alarmduckBiotechnology

Dec 12, 2012 (4 years and 8 months ago)

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Al
-
Bashair Private School

Name:

Key

Science

Date:


Grade
7



Title:
Bacteria's role in the world

Q1:
Complete the following graph organizers to summarize your lesson:













Q2: Match the term with the description:

f

Nitrogen fixation

a) Human body needs it
to break down and use
sugar and carbohydrates.

g

Antibiotics

b) T
he changing of genes of bacteria, or other
living thing.

e

Pathogenic

c)
Decomposer bacteria break down dead plant
and animal matter, which makes nutrients
available to other living things.

b

Genetic engineering

d)
Using microorganisms to change harmful
chemicals into harmless one

a

Insulin

e)
B
acteria that cause disease
.

h

Lactic acid

f)
Bacteria take in nitrogen from air and change
it to a form that plants can use

d

Bioremediation

g) M
edicines used to kill bacteria and other
microorganisms.

c

Recycling

h)
Bacteria produce it and it
preserves

and adds
flavor to the food.


Cause
diseases

for
human,
plants
or
animals.
_
__

Harmful

Good for
people

Insulin

Recycling


Nitrogen
cycle


Cleaning
up


Antibiotics

In food

Bacteria's role

in the world

Good for
environment

Genetic
engineering