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NYS Regents

NEW YORK STATE REGENTS EXAMS
LIVING ENVIRONMENT - JUNE 2002

6 In a cell, all organelles work together to carry out

(1) diffusion
(2) active transport
(3) information storage
(4) metabolic processes

7 The ability of certain hormones to attach to a cell is primarily determined by the

(1) receptor molecules in the cell membrane
(2) proteins in the cytoplasm of the cell
(3) amount of DNA in the cell
(4) concentration of salts outside the cell

8 The diagram below represents the organization of genetic information  within a cell nucleus.

The circle labeled Z most likely represents

(1) amino acids         (3) vacuoles
(2) chromosomes     (4) molecular bases

9 The diagram below represents the change in a sprouting onion bulb when sunlight is present and when sunlight is no longer available.

Which statement best explains this change?

(1) Plants need oxygen to survive.
(2) Environmental conditions do not alter characteristics.
(3) Plants produce hormones.
(4) The environment can influence the expression of certain genetic
traits.

10 A human zygote is produced from gametes that are usually identical in

(1) the expression of encoded information
(2) the number of altered genes present
(3) chromosome number
(4) cell size

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