Biology 1 final exam study guide

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biology is the study of


all organisms posses dna, dna is

contains information for growth and development

instructions for development that are passed from parents to offspring are known as


homeostasis means

keeping things the same

which of the following is not necessarily a distinct property of living things


the smallest units that can carry on all functions of life are called


living things

need energy for life processes, have the ability to reproduce, are composed of cells

all organisms are composed of


all living things maintain a balance within their cells and the environment through the process of


which of the following is a characteristic of all living things

cellular organization

a scientist noticed that in acidic pond water some salamanders developed with curved spines, this was a


the english physician ronald ross wanted to try to find the cause of malaria. based on his observations dr.ross suggested that the anopheles mosquito might spread malaria from person to person this was a


dr ross knew that parasite plasmodium was always found in the blood of malaria patients he thought that if the anopheles mosquitoes were responsiable for spreading malaria then plasomodium would be found in the mosquitoes this was a


scientific hypotheses are most often tested by the process of


a hypothesis is

a testable possible explanation of an observation

a hypothesis that does not explain an observation

is rejected

a light microscope that has an objective lens of 10x and an ocular lens of 20x ha a magnification of


nonpolar molecules have

no negative or positive poles

a molecule that has a partial positive charge on one side and a partial negative charge on the other side is

nonpolar molecule

all organic compounds contain the element

carbon (C)

which three elements are found in organic compounds

nitrogen, hydrogen and oxygen

the formation or ADP and inorganic phosphate from ATP and water is an example of which kind of reaction


which of the following is a carbohydrate


which organic molecule below is classified as a carbohydrate


animals store glucose containing fragments in the form of


polysachrides are


all of the following are examples of carbohydrates except


amino acids are monomers of


lipids are

nonpolar molecules

all of the following are examples of lipids except


liquid fats called oils contain

long CH2 chains linked by double covalent bonds

which of the following is not an organic macromolecule


which organic molecule below is most closely related to nucleic acids


nucleic acids include

dna and rna

the smallest units of life in all living things are


one difference between prokaryotes and eukaryotes is that

prokaryotes have no nuclear membrane

which of the following is a characteristic of prokaryotes

they were found on earth before eukaryotes

which of the following is an example of a prokaryotic cell


only eukaryotic cells have

membrane bound organelles

studying a picture of the cell taken with an electron microscope you find that the cell has no nucleus and no mitochondria but it does have a cell membrane and a cell wall you conclude that the cell is probable from a


cell membranes

are thing coverings that surround the cells

the cell membrane

is selectively permeable

a structure within a cell that performs a specific function is called a


a particularly active cell might contain a large number of


golgi apparatus are oganelles that

receive proteins and lipids from the endoplasmic reticulum, label the molecules made in the e.r ith tags that specify their destination, release molecules in vesicles

one important organelle that helps maintain homeostasis by moving supplies from one part of the cell to the

golgi apparatus

numerous threadlike organelles that protrude from the surface of a cell and are packed in tight rows are


protiens are made in cells on the


the packaging and distribution center of the cell is the

golgi apparatus

the double membrane surrounding the nucleus is called the

nuclear envelope

all of the following are found in a plant and animal cell except

a cell wall

how are chloroplasts like mitochondria

they look alike

the organelles associated with photosynthesis are the


the organelles in plant cells that contain a green pigment are the


plant cells have a large membrane bound spaces in which water, waste products and nutrients are stored these are called


which of the following is the correct order of organization of structures in living things, from simplest to most complex

cells, tissues, organs, organ systems

as a result of diffusion the concentration of many types of substances

eventually becomes balanced on both sides of a membrane

diffusion takes place

from an area of high concentration to low concentration

the dispersal of ink in a beaker is an example of


sugar molecules can enter cells through the process of

facilitated diffusion

channelization in facilitated diffusion

work in two directions

which of the following is not a characteristic of facilitated diffusion

it moves substances against a concentration gradient

which of the following do not expend energy


which of the following enters a cell by active transport

potassium ion

the process by which water passes into or out of a cell is called


the sodium potassium usually pumps

potassium into the cell

ridding the cell of material by discharging it from sacs at the cell surface is called


molecules that are too large to be moved across a cell membrane can be removed from the cell by




in order to fit within a cell, dna becomes more compact by

wrapping tightly around associated proteins

chromatids are

joined strands of duplicated genetic material

a protein disk that attaches two chromatids to each other in a chromosome is called a


a student can study a karyotype to learn about the

chromosomes present in a somatic cell

an educated guess or

hypothesis may be tested by expiramentation

stating in advance the result that may be obtained from testing a hypothesis is called


the formation of polymers from monomers occurs as a result of

dehydration reactions and the breakdown of polymers into monomers occurs as a result of condensation reaction

lipids are

non polar molecules

the statement that cells are produce only from existing cells is part of the

cell theory

a cell with a well defined nucleus surrounded by a nuclear membrane is called a

eukaryotic cell

a cell membrane is said to be

selectively permeable

scientists have discovered that cells contain smaller specialized structures known as


the spherical organelles that are the site of protein synthesis in a cell are the


the meshlike network of protein fibers that supports the shape of the cell is called the


photosynthesis takes place in the

chloroplast of plant cells

active transport systems are a from of cell transport that requires energy from molecules of


active transport

allows a cell to stockpile substances in far greater concentrations than they occur outside of the cell

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