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Chemical Basis of Life 1

Total questions: 15

Worksheet time: 7mins

Name
Class
Date
1.

DNA replication occurs the S phase of mitosis

a)

true

b)

false

2.

Transcription involves copying of DNA into messenger RNA

a)

false

b)

true

3.

Lipids are produced in Rough ER

a)

true

b)

false

4.

active transport is a carrier-mediated process, requires ATP that moves substances across the cell membrane from regions of lower to a higher concentration against a concentration gradient

a)

true

b)

false

5.

water soluble substances such as ions, can diffuse across the cell membrane only by passing directly through the phospholipid bilayer of the cell membrane

a)

true

b)

false

6.

phosphate group in phospholipids are negatively charged. making the head polar and hydrophilic (T or F; water loving or water hating)

a)

true; water hating

b)

false; water loving

c)

true; water loving

d)

false; water hating

7.

is cytoplasm an organelle?

a)

no

b)

yes

8.

it is composed of a single layer of phospholipids interspersed with carbohydrates, proteins & cholesterol

(a)  

9.

which is not a cellular function

a)

communication

b)

absorption

c)

organization

d)

metabolism

e)

none of the above

10.

all living cells are multicellular organisms have a surrounding plasma membrane

a)

false

b)

true

11.

how many cellular functions do we have?

a)

6

b)

7

c)

5

d)

3

12.

lipids are found in

(a)  

13.

what comes first? translation or transcription?

a)

transcription

b)

translation

14.

what does ATP mean?

(a)  

15.

what does Rough ER do?

a)

produce protein

b)

produce lipids

c)

atp