All of the following are characteristics of living things except

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All of the following are characteristics of living things except

	growth.
	production of diseases.
	reproduction.
	metabolism .
	reaction to the external environment.

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One important function of carbohydrates is that they

	form enzymes.
	are structural molecules.
	repel water.
	store energy.
	hold genetic information.

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Which of the following organic molecules store energy, provide insulation, and assist in buoyancy?

	Proteins
	Carbohydrates
	Lipids
	Nucleic acids
	Amino acids

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4 of 25

One of the products of photosynthesis is

	water.
	energy released into the surrounding environment.
	oxygen.
	carbon dioxide.
	energy contained in the water molecules.

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During the process of cellular respiration,

	energy is released from organic molecules to do work in the cell
	carbon dioxide and water form sugars
	solar energy is transformed into chemical energy
	oxygen and carbon dioxide are produced
	sunlight is used to create energy

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Which of the following is not true of a cell?

	It is the basic structural unit of life.
	Mitochondria are found in both plant and animal cells.
	Cell walls are found in all plant and animal cells.
	All organisms are made of one or more cells.
	The membrane-bound structures within most cells are called organelles.

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Which of the following is classified as a prokaryotic cell?

	Bacteria
	Fungi
	Protist
	Animal
	Plant

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Which of the following shows the correct level of organization in order of increasing complexity?

	Molecule, cell, organelle, individual, community
	Organelle, tissue, organ, community, population
	Ecosystem, individual, organ, cell
	Molecule, atom, cell, organ system, ecosystem
	Atom, molecule, organ, population, ecosystem

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A group of organisms of different species living together on a rocky beach is an example of which of the following?

	Population
	Community
	Individual
	Ecosystem
	Colony

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The ecosystem best encompasses which of the following?

	All living organisms living in one area
	Populations in one area but not the physical environment
	The community or communities but not the physical environment
	The community or communities and the physical environment
	Populations and communities living in one area

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11 of 25

The cell membrane is said to be “selectively permeable” because it

	allows only some substances to move through.
	allows all substances to enter the cell.
	allows all substances to leave the cell.
	allows only the smallest molecules to enter the cell.
	allows only water and salts to enter the cell.

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Marine organisms whose internal salt concentration varies with that of their environment are examples of which of the following?

	Osmoregulators
	Isotonic organisms
	Poikilotherms
	Osmoconformers
	Homeotherms

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All of the following are examples of asexual reproduction except

	fission.
	fertilization.
	plants sending out “runners.”
	budding.
	cell division.

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Which of the following shows the correct taxonomic levels from most inclusive to least inclusive?

	Kingdom, phylum, order, species, genus
	Kingdom, phylum, family, genus, species
	Kingdom, family, order, phylum, genus
	Kingdom, order, phylum, genus, species
	Order, family, phylum, genus, species

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Cellular respiration occurs in the

	mitochondria.
	endoplasmic reticulum.
	Golgi complex.
	nucleus.
	centrioles.

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The end product of cellular respiration is

	oxygen.
	nitrogen.
	ATP.
	amino acids.
	glucose.

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The events of evolution best explain

	how organisms obtain energy from organic molecules.
	why people use a three domain system of classification.
	how life originated on Earth.
	the growth and development of individual organisms.
	why so many organisms have characteristics in common.

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Two single-cell organisms are placed in a 3.5% salt solution. Cell A enlarges slightly and then stops. Cell B enlarges and finally ruptures. Which of the following was true at the time the cells were placed in the saltwater?

	Cell A was hypertonic to the solution and cell B was hypotonic.
	Cell A was hypotonic to the solution and cell B was hypertonic.
	Cells A and B were isotonic in relation to each other.
	Cell B was hypertonic in relation to cell A.
	Cell A was hypertonic in relation to cell B.

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Natural selection is best shown by _________________.

	new species being formed by genetic engineering
	breeders selecting animals with desirable characteristics to mate together
	individuals with adaptive traits surviving and leaving offspring
	smaller organisms in any habitat dying out when the environment changes
	osmoconformers surviving in seawater of constant temperature and salinity

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Which kingdom of eukaryotic organisms is multicellular and capture its food?

	Fungi
	Animals
	Plants
	Protists
	Bacteria

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21 of 25

In order to transport materials in and out of an organism efficiently, the best situation would be to have a _____________________.

	small surface area to volume ratio
	a 1:1 ratio of surface area to volume
	large surface area to volume ratio
	inside volume that is significantly larger than the surface area of the membrane
	reduced surface area of the membrane in comparison to the volume of the cell

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______________ and _____________ were long ago free-living cells that joined with other cells in a symbiotic association.

	Chloroplasts and the nucleus
	Mitochondria and ribosomes
	Chloroplasts and Golgi bodies
	Mitochondria and chloroplasts
	Ribosomes and the Golgi body

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23 of 25

A unicellular freshwater organism suddenly is placed in a marine environment. It would be expected that the cell would __________________.

	increase in size
	decrease in size
	stay the same size
	change size from smaller to larger and back to smaller
	neither increase or decrease in size

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A freshwater cell placed into a marine environment would initially be ________________ in relation to saltwater.

	hypotonic
	hypertonic
	isotonic
	hypoxic
	anoxic

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Sea turtles maintain constant water-salt balance by ________________________________.

	moving back and forth between fresh and salt water
	drinking sea water and retaining as much salt as possible
	excreting water throughout the day
	secreting salts through glands near the eyes
	retaining both salt and water in their kidneys