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Living Environment - New York Regents June 2011 Exam

   Directions (1–30): For each statement or question, record on your separate answer sheet the number of the
word or expression that, of those given, best completes the statement or answers the question.

Formats View Examination Paper with Answers Solve Examination Paper Questions Review
: Multiple choice

Your Performance  

1.

1 Which phrase is an example of autotrophic
  nutrition?
  (1) a cow eating grass in a field
  (2) a mushroom digesting a dead log
  (3) an apple tree making its own food
  (4) a tapeworm feeding in the body of a dog

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  Half-n-half Clue
 

2.

2 The ability of estrogen to affect certain cells
  depends directly on
  (1) amino acids         (3) gametes
  (2) receptor molecules (4) nerve cells

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3.

3 By studying the chemicals in rare plants that
  grow only in rain forests, scientists hope to
  discover new life-saving medicines. Chances of
  finding such new medicines are reduced by
  (1) predation by carnivores
  (2) homeostasis in organisms
  (3) recycling of materials in food webs
  (4) loss of species due to human activities

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4.

4 When a species includes organisms with a wide
  variety of traits, it is most likely that this species
  will have
  (1) a high proportion of individuals immune to
      genetic diseases
  (2) a greater chance to survive if environmental
      conditions suddenly change
  (3) less success competing for resources
  (4) limitless supplies of important resources,
      such as food and water

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5.

5 Some diseases and their causes are listed below.
       A. Flu—influenza virus
       B. Lung cancer—smoking
       C. Cystic fibrosis—genes
       D. Dysentery—parasitic ameba
 Which disease would individuals have the
 greatest difficulty preventing in themselves?
 (1) A                      (3) C
 (2) B                      (4) D

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6.

6 The diagram below represents the banding
  pattern for human chromosome 11, with some of
  the bands labeled.

The bands represent
(1) proteins          (3) starches
(2) genes             (4) enzymes

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7.

7 A liver cell can make enzymes that a heart cell
  can not make because liver cells
  (1) digest large, complex molecules
  (2) contain more DNA than heart cells
  (3) use different genes than the heart cells use
  (4) remove carbon dioxide from blood

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  Half-n-half Clue
 

8.

8 As male children get older, some begin to
  closely resemble their fathers and have no
  resemblance to their mothers. Which statement
  best explains this observation?
  (1) Several sperm fertilized the egg, so the fertilized
      egg contained more genes from their father.
  (2) More genes are inherited from the sperm
      cell of their father than from the egg cell of
      their mother, so most traits will be like those
      of their father.
  (3) More genes from their father are expressed
      in traits that can be seen, and more genes
      from their mother are expressed in traits that
      cannot be seen, such as blood type or
      enzyme function.
  (4) Genes from their father are stronger than
      genes from their mother, so the genes from
      their mother are not expressed.

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9.

9 Which row in the chart below contains a cell structure paired with its primary function?

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10.

10 Which sequence represents the levels of biological organization from smallest to largest?
   (1) organism → cell → tissue → organelle → organ system → organ
   (2) organ system → organ → organism → cell → tissue → organelle
   (3) organelle → organ system → cell → organism → tissue → organ
   (4) organelle → cell → tissue → organ → organ system → organism

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  Half-n-half Clue
 

11.

11 The diagram below represents division of a cell that produces two daughter cells.

Which statement most likely describes the daughter cells produced?
(1) The daughter cells will pass on only half of the genetic information they received from the original cell.
(2) The daughter cells will each produce offspring that will have the same genetic information as the
    original cell.
(3) The daughter cells will each undergo the same mutations as the original cell after reproduction has
    occurred.
(4) The daughter cells will not pass on any of the genes that they received from the original cell.

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12.

12 Which concept is best represented in the diagram below?

(1) random mutations        (3) genetic engineering
(2) ecological succession   (4) direct harvesting

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13.

13 The cells that make up leaves on a tree are
   genetically identical, yet the leaves often have
   different shapes and sizes, as shown in the
   diagram below.

Which statement best explains this difference in
leaf appearance?
(1) The leaves at the top of the tree get more
    sunlight, causing the genes in their cells to
    be expressed differently.
(2) The genes in the cells of leaves at the top of
    the tree are destroyed by sunlight, causing
    the leaves to stop growing.
(3) The leaves near the bottom of the tree have
    more genes related to leaf size, causing them
    to grow larger.
(4) The genes in the cells of leaves near the
    bottom of the tree increase in number,
    causing them to grow even larger.

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  Half-n-half Clue
 

14.

14 Selective breeding is a technique that is used to
   (1) give all organisms a chance to reproduce
   (2) produce organisms from extinct species
   (3) produce offspring with certain desirable
       traits
   (4) keep farm crops free of all mutations

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15.

15 On hot, dry days, guard cells often close
   microscopic openings in plant leaves, conserving
   water. This is an example of
   (1) environmental factors causing gene mutation
       in plants
   (2) finite resources acting as selecting agents for
       evolution
   (3) a feedback mechanism for maintaining
       homeostasis
   (4) differentiation in plants as a result of stimuli

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  Half-n-half Clue
 
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