Pearson Ch 1

Question 1

Some cells are enclosed by cell membrane true or false

Answer 1

False EVERY cell is enclosed by a cell memb

Question 2

What helps a leaf to maximise capture of sunlight

Answer 2

It’s thin flat shape

Question 3

can chloroplasts be found in
> eukaryotes
> prokaryotes

Answer 3

Chloroplasts are NEVER found in prokaryotes
Only in eukaryotic cells

Question 4

A particular sequence of nucleotides says the same thing in one organism as it does in another

Answer 4

UNIVERSALITY of genetic code

Question 5

Production of DNA only is referred as gene expression t/f

Answer 5

False
production of RNA is also referred as gene expression

Question 6

Proteome

Answer 6

Entire set of proteins expressed by a given cell tissue or organism

Question 7

Example of positive feedback

Answer 7

The clotting of your blood in response to injury

Question 8

Biological level of organisation

Answer 8

Atoms > molecules > organelle > cell > tissue > organs > organ system > organism

Question 9

Habitat of archaea

Answer 9

Earth’s extreme environments such as salty lakes and boiling hot springs

Question 10

Cilia of windpipe

Answer 10

Help keep the lung clean by sweeping a film of debris trapping mucus