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Essential English for Biology Students.doc
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VI. Give Russian equivalents to the following English terms:

English term

Russian equivalent

1

to be rich in carbohydrates, proteins and fats

2

simple ingredients

3

a waste product

4

raw materials

5

external source of free energy

6

to be supplied by sunlight

7

light-dependent stage

8

light-independent stage

9

to form cell walls

10

complex organic substances

11

the main site of photosynthesis

12

a fluid-filled compartment

VII. Find synonyms among the pool of words:

Pool of words

Synonyms

1)1.plant /2.substance /3. material /4.herb

2)1.digestion /2.energy /3.assimilation /4. power

3)1.obtain /2.act /3.connect /4.join /5.react /6.get

4)1.gather/2.enclose /3.surround /4.accumulate

VIII. Answer the following questions. Use all information given before:

1. What is plant material rich in?

2. Do plants make their food for themselves?

3. What is chlorophyll?

4. What is the role of chlorophyll?

5. What process is called photosynthesis?

6. What are two main stages in photosynthesis?

7. What is the difference between light-dependent and light-independent stage?

8. What is the main site of photosynthesis in most plants?

IX. Match the sentence halves. Make complete sentences:

1.

Most plants have no structures

A.

plants make it for themselves using simple ingredients.

2.

Instead of obtaining their food from other organisms,

B.

to trap light energy and use it to make sugars.

3.

A typical plant takes in carbon dioxide (from the air) and water (from the soil)

C.

which contain all the biochemical machinery necessary for the light-dependent and light-independent stages of photosynthesis.

4.

A green substance, chlorophyll, enables the plant

D.

as the raw material for other chemical reactions.

5.

The process of using sunlight to build up complex substances from simpler ones is

E.

and builds these up into sugars and other complex substances.

6.

There are two main stages in photosynthesis: a light-dependent stage in which water is broken down into hydrogen and oxygen using light energy;

F.

for ingesting and digesting food.

7.

The glucose formed by photosynthesis is used

G.

And light-independent stage in which the hydrogen reacts with carbon dioxide to form a carbohydrate.

8.

These green parts have chloroplasts,

H.

called photosynthesis.

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