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Dallas ISD Science Depatment

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Cells Genetics Body Systems

Kingdoms

Dallas ISD Science Depatment

When a sea urchin egg is removed from the ocean and placed in freshwater, the egg swells and bursts. Which of these caused water to enter the egg?

F Coagulation G Sodium pump H Active transport J Osmosis

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J Osmosis

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If a cat has 38 chromosomes in each of its body cells, how many chromosomes will be in each daughter cell after mitosis?

F. 11G. 19H. 38J. 76

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H. 38

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Viruses differ from bacteria in that all viruses —

F cause insect-borne diseasesG can be destroyed by antibioticsH have rigid cell wallsJ must be reproduced in living cells

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J must be reproduced in living cells

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Why are photosynthesis and cellular respiration often considered opposites? F Photosynthesis produces twice as many ATP molecules as cellular respirationG Water is released during photosynthesis and consumed during cellular respirationH Photosynthesis occurs during the day, and cellular respiration occurs at nightJ Oxygen is produced during photosynthesis and used during cellular respiration

Dallas ISD Science Depatment

J Oxygen is produced during photosynthesis and used during cellular respiration

Dallas ISD Science Depatment

Which of the following best describes the question this set of procedures was designed to answer?

A Can a substance from dead bacteria transform living bacteria?

B Can R bacterial cells survive heating?

C Can dead bacterial cells confer immunity to a living host?

D Can bacterial cells be isolated from a healthy host?

Dallas ISD Science Depatment

A Can a substance from dead bacteria transform living

bacteria?

Dallas ISD Science Depatment

Coat color in mice varies greatly, ranging from black to grizzly-gray, black-and-white, spotted, or white. The nucleus from a body cell of a grizzly-gray mouse is fused with an egg from a black mouse from which the nucleus has been removed. The egg begins to divide and is then transplanted into a female white mouse. What will be the most likely coat color of the offspring?

F Black G Black with white spots H Grizzly grayJ White

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H Grizzly gray

Dallas ISD Science Depatment

All of the following are found in a DNA molecule except — 

A carbon dioxideB deoxyriboseC nitrogenD phosphate

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A carbon dioxide

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Which molecule is most responsible for determining an organism’s eye color, body structure, and cellular enzyme production? A Complex starchB Fatty acidC CarbohydrateD Deoxyribonucleic acid

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D Deoxyribonucleic acid

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Which of these represents the DNA segment from which this section of mRNA was transcribed? A ACTAAGB TCUTTGC GAAUCUD UCCTGA

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A. ACTAAG

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The assembly of a messenger RNA strand that normally begins with UAC has been changed so that the newly assembled messenger RNA strand begins with UAG. Which of the following will most likely occur? A The protein will be missing the first amino acid.B The amino acids that make up the protein will all be different.C The mRNA will become attached to a ribosome.D The production of the protein will be stopped.

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D The production of the protein will be stopped.

Dallas ISD Science Depatment

Which body system is directly responsible for delivering nutrients to cells throughout thebody? A Circulatory systemB Integumentary systemC Endocrine system

D Respiratory system

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A Circulatory system

Dallas ISD Science Depatment

The diagram illustrates the parts of this flower. Which of these parts are not directly involved in sexual reproduction? A Stigma and styleB Sepal and pedicelC Anther and filamentD Receptacle and ovary

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B Sepal and pedicel

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When a person is frightened by a wild animal, some organ systems immediately become active, while others are suppressed. Which of these systems is likely to be suppressed? F Muscular systemG Respiratory systemH Endocrine systemJ Digestive system

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J Digestive system

Dallas ISD Science Depatment

The diagram represents a human arm. Which structure is most responsible for moving the arm to a straighter position?

A. Tendons of origin B. BicepsC. RadiusD. Triceps

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D. Triceps

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In the diagram above, one cell created and releases chemicals that travel to a second cell and quickly induce that cell into action. This diagram represents part of the –

 A.     endocrine systemB.     skeletal systemC.     muscular systemD.     nervous system

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D. nervous system

Dallas ISD Science Depatment

The kingdom Animalia includes all of these except –

A jellyfish B sponges C amoebasD roundworms

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C amoebas

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This organism most likely is a member of which kingdom?

F Eubacteria

G Protista

H Animalia

J Plantae

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G Protista

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The bullfrog, Rana catesbeiana, is most closely related to the –

F spotted chorus frog, Pseudacris clarki

G Asian flying frog, Polypedates leucomystax

H northern leopard frog, Rana pipiens

J African bullfrog, Pyxicephalus adspersus

Dallas ISD Science Depatment

H northern leopard frog, Rana pipiens

Dallas ISD Science Depatment

Some zooplankton belong to the kingdom Protista. Members of this kingdom are characterized as –

A. having segmented bodies with jointed appendagesB. containing one or more eukaryotic cellsC. laying eggs with a leathery protective shellD. having a four-chambered heart

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B. containing one or more eukaryotic cells

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Which of the following correctly sequences organisms from simplest to most complex? A. Eubacteria, plant, protist B. Eubacteria, protist, animal C. Fungi, animal, archaebacteria D. Plant, fungi, protist

Dallas ISD Science Depatment

B. Eubacteria, protist, animal