Unit 4 ReviewUnit 4 ReviewDartsDartsMr. OlsenMr. Olsen77thth Grade Grade

Integrated ScienceIntegrated Science

#1#1

A student wants to look at the chloroplast inA student wants to look at the chloroplast inthe one-celled organism called Euglena. the one-celled organism called Euglena. Which instrument would they use?Which instrument would they use?a. compound microscopea. compound microscopeb. telescopeb. telescopec. the naked eyec. the naked eyed. magnifying glassd. magnifying glass

#2#2

Which process produces the energy neededWhich process produces the energy neededto carry out life activities? to carry out life activities? a. circulation a. circulation b. digestion b. digestion c. excretion c. excretion d. respiration d. respiration

#3#3

Which of the following terms refers to theWhich of the following terms refers to themovements of molecules from an area ofmovements of molecules from an area ofhigher concentration to an area of lowerhigher concentration to an area of lowerconcentration?concentration?a. concentrationa. concentrationb. diffusionb. diffusionc. passive transportc. passive transportd. collisiond. collision

#4#4

If a cell that is 80% water is placed in aIf a cell that is 80% water is placed in asolution that is 40% water, which way willsolution that is 40% water, which way willthe net movement of water go? the net movement of water go? a. Into the cell a. Into the cell b. Out of the cell b. Out of the cell c. Neither way c. Neither way

#5#5

A cell that is 43% water is placed in aA cell that is 43% water is placed in asolution that is 75% water. Which way willsolution that is 75% water. Which way willthe net movement of water go? the net movement of water go? a. Into the cell a. Into the cell b. Out of the cell b. Out of the cell c. Neither way c. Neither way

#6#6Kelly and Pat are stranded on a desert island in the middleKelly and Pat are stranded on a desert island in the middleof the ocean. They both are very thirsty and search forof the ocean. They both are very thirsty and search forWater. Kelly decides to drink ocean water deciding thatWater. Kelly decides to drink ocean water deciding thatalthough it tastes salty, it doesn’t taste terrible. Pat, on thealthough it tastes salty, it doesn’t taste terrible. Pat, on theother hand, decides to drink coconut milk. As the dayother hand, decides to drink coconut milk. As the daywears on, Kelly drinks more ocean water and complains ofwears on, Kelly drinks more ocean water and complains ofbeing thirstier. Why might Kelly still be thirsty?being thirstier. Why might Kelly still be thirsty?

a. Osmosis has depleted the water of Kelly’s cells, causing a. Osmosis has depleted the water of Kelly’s cells, causing thirst.thirst.

b. Osmosis has put more salt into Kelly’s cells, causing b. Osmosis has put more salt into Kelly’s cells, causing thirst.thirst.

c. The salt from the ocean water has held more water in c. The salt from the ocean water has held more water in Kelly’s cells.Kelly’s cells.

d. Coconut milk contains about half the salt that ocean d. Coconut milk contains about half the salt that ocean water does.water does.

#7#7

What part of the cell contains instructionsWhat part of the cell contains instructionsand information to be sent to all parts of theand information to be sent to all parts of thecell? cell? a. mitochondrion a. mitochondrion b. nucleolus b. nucleolus c. nucleus c. nucleus d. ribosome d. ribosome e. vacuole e. vacuole

#8#8

What is the function of the cWhat is the function of the cell membraneell membranein the cell?in the cell?a. To control what goes in and out of the a. To control what goes in and out of the

cell.cell.b. To provide strength for the cell.b. To provide strength for the cell.c. To package things made in the cell.c. To package things made in the cell.d. To direct cell reproduction.d. To direct cell reproduction.

#9#9

Tell what the mitochondria does for a cell.Tell what the mitochondria does for a cell.

#10#10

What is the function of the cWhat is the function of the cell wallell wall in the in thecell?cell?a. To control what goes in and out of the a. To control what goes in and out of the

cell.cell.b. To destroy harmful things in the cell.b. To destroy harmful things in the cell.c. To provide rigid support for the cell.c. To provide rigid support for the cell.d. To hold the cell parts in place.d. To hold the cell parts in place.

#11#11

What 2 organelles do plants have thatWhat 2 organelles do plants have thatanimal cells don’t?animal cells don’t?

#12#12

Which cell structure is found only in plant Which cell structure is found only in plant cells?cells?

a. cell membranea. cell membraneb. cell wallb. cell wallc. cytoplasmc. cytoplasmd. nucleus d. nucleus

#13#13Plant and animal cells are distinguished from eachPlant and animal cells are distinguished from eachother by several factors. One of these factors is:other by several factors. One of these factors is:

a. Plant cells have cell walls but not cell a. Plant cells have cell walls but not cell membranes.membranes.

b. Plant cells have both cell membranes and cell b. Plant cells have both cell membranes and cell walls.walls.

c. Animal cells have both cell membranes and cell c. Animal cells have both cell membranes and cell walls.walls.

d. Animal cells have cell walls but not cell d. Animal cells have cell walls but not cell membranes.membranes.

#14#14

Which letter correctly identifies the 5 levels of cell Which letter correctly identifies the 5 levels of cell organization from most complex to simplest?organization from most complex to simplest?

a. tissue, organs, organ systems, cell, organisma. tissue, organs, organ systems, cell, organismb. organism, organ system, organ, tissue, cellb. organism, organ system, organ, tissue, cellc. organ system, cell, tissue, organ, organismc. organ system, cell, tissue, organ, organismd. cell, tissue, organ, organ system, organismd. cell, tissue, organ, organ system, organism

#15#15

Which of the following is an example of anWhich of the following is an example of anorganism?organism?

a.      a mousea.      a mouseb.      a skull boneb.      a skull bonec.      a nerve cellc.      a nerve celld.      skind.      skin

#16#16

Which of the following is an example of an Which of the following is an example of an organ?organ?

a.      large intestinea.      large intestineb.      inner lining of the stomachb.      inner lining of the stomachc.      digestive systemc.      digestive systemd.      muscle fiberd.      muscle fiber

#17#17

The epidermis and dermis make up the twoThe epidermis and dermis make up the twomain layers of the skin. Skin is an examplemain layers of the skin. Skin is an exampleof which level of organization?of which level of organization?

a. cella. cellb. tissueb. tissuec. organc. organd. systemd. system

#18#18Saliva contains an enzyme that breaks down sugarSaliva contains an enzyme that breaks down sugarinto chemicals beginning as soon as you put it intointo chemicals beginning as soon as you put it intoyour mouth. If a person did not produce saliva,your mouth. If a person did not produce saliva,which would most be affected?which would most be affected?

Most directly affected would be their ? Most directly affected would be their ?

a. blood cellsa. blood cellsb. digestive systemb. digestive systemc. liverc. liverd. nervous systemd. nervous system

#19#19

In detail, describe how respiration works.In detail, describe how respiration works.

#20#20

What do plant cells and bacteria have that What do plant cells and bacteria have that animal cells don’t?animal cells don’t?