Comprehension check

1. Choose the right variant for the multiple-choice statements.

1. All protists

1. together represent a kingdom b. are eukaryotic organisms

c. are unicellular d. are multicellular

e. a and b.

2. All protists

1. Photosynthesize b. are heterotrophs

c. have tissue differentiation d. all of the above

e. none of the above.

3. The following are protists:

a.blue-green bacteria b. bacteria

c. bryophytes d. euglenoids

e. lycopsids.

4. Unlike monerans, protists possess

1. endoplasmic reticulum b. mitochondria

c. Golgi bodies d. chloroplasts

e. all of the above.

5. The nonphotosynthetic protists are known as

1. Thallophytes b. Bryophytes

c. chlorophytes d. protozoa

e. Chrysophyta.

6. All of the following are protozoans, except for

1. Sarcodina (amoebas) b. Ciliophora (ciliates)

c. Mastigophora (flagellates) d. Sporozoa

e. Tracheophyta.

7. Which of the following is prokaryotic?

1. Dinoflagellates b. blue-green bacteria

c. brown algae d. red algae

e. diatoms.

2. Ask questions revealing the main points of the text.

3. Think of 5-7 statements that would contradict the contents of the text. Language focus

1. Find synonyms to the following words in the text:

lineage	random	to explain	considerable
difference	offspring	lineal	differ
elementary	simultaneously	single-celled	strange, odd, unusual

2. Complete the table (where possible):

Noun	Verb	Adjective
protista
	to persist
		multicellular
ancestry
lineage
		divergent
		bizarre

3. Define the following terms:

protista	unicellular	multicellular	kingdom
phylum	classification	ancestor	true algae

3. Match the first half of a sentence in column A with the appropriate second half in column B:

A	B
1. Protista constitutes a diverse kingdom	a) having the capacity to obtain food by different mechanisms.
2. Members of the kingdom Protista vary	b) giant multicellular forms such as the kelps.
3. It is theorized that the primitive protists were both plant-like and animal-like,	c) considerably in structure and physiology.
4. True algae range in size from unicellular microscopic organisms to	d) containing thousands of species of single-celled organisms.

3. Put the parts of the sentences in the right order:

1. To, unicellular, their, lineages, many, are, closely, organisms, related, multicellular, ancestral.

2. Protists, to be, some, of, plant, the, kingdom, sometimes, are, considered, multicellular, members.

3. Properties, each, cell, protist, has, and, a, all, the, eukaryotic, nucleus, other.

4. Appear, from, to, protists, evolved, a, have, moneran, ancestor, type, of.

5. Algae, there, several, phyla, other, are, that, often, are, true, called.

6. Million, they, already, ago, 450, were, more, well-developed, than, years.