Biology Final Exam Questions

Front 1

Passive Transport uses ATP to Move molecules against their concentration gradient?
T or F?

Back 1

False

Front 2

Refer to the illistration on pg.1. Reproduction ensure the ongoing success of both species. T or F

Back 2

True

Front 3

Refer to the illistration on pg 1. The sand dollar and the paramecium both exhibit organization. T or F

Back 3

True

Front 4

Refer to the illistration on pg.1. Unlike the sand dollar, the paramecium does not have to maintain a stable internal environment. T or F

Back 4

False

Front 5

Refer to the illistration on pg.1. Both species have DNA in their cell. T or F

Back 5

True

Front 6

Refer to the illistration on pg 1 (top)Both species are mulitcelluar. T or F

Back 6

False

Front 7

A cell placed in a strong salt solution would probably burst because of osmosis. T or F

Back 7

False

Front 8

The independent variable is the variable that changes in an experiment. T or F

Back 8

True

Front 9

Refer to the illustration on pg 1 (bottom). the diagram shows the lipid bilayer that froms the framework of the cell membrane. T or F

Back 9

True

Front 10

Exocytosis does not use energy to expel proteins from the cell. T or F

Back 10

False

Front 11

Cell surface marker protein face the inside of the cell T or F

Back 11

False

Front 12

Diffusion through ion channels is a form of active transport. T or F

Back 12

False

Front 13

Anton Van Leeuwenhoek concluded that all plants are composed of cells. T or F

Back 13

False

Front 14

The sodium potassium pump uses ATP. T or F

Back 14

True

Front 15

Facilitated Diffusion moves molecules and ions against their concentration gradient, while active transport moves molecules and ions down their concentratin gradient. T or F

Back 15

False

Front 16

Two different structures that all cells have are a cell membrane and a cell wall. T or F

Back 16

False

Front 17

The cells of animals are prokaryotic. T or F

Back 17

False

Front 18

Water will diffuse out of a cell when the cell is placed in a hypertonic solution. T or F

Back 18

True

Front 19

Mitochindria contain DNA. T or F

Back 19

True

Front 20

Diffusion is an active process that requires a cell to expend a great deal of energy. T or F

Back 20

False

Front 21

Robert Hooke observed cork cells under a microscope. T or F

Back 21

True

Front 22

Which type of molecule forms a lipid bilayer within a cell membrane? Protein, phospholipid, nucleuic acid, carbohydrate

Back 22

phospolipid

Front 23

Which of the following does not require energy?
diffusion, sodium potassium pump, active transport, endocytosis

Back 23

diffusion

Front 24

When a signal molecule binds to a receptor protein, the receptor protein may....
speed up a chemical reaction
change the permiability of the membrane, cause the formation of a second messenger molecule, All of the Above

Back 24

All of the above

Front 25

Which of the following is characteristic of prokaryotes?
The organells in their cytoplasm are surrounded by membrane, they have a nucleus, their evolution preceded that of eukaryotes, none of the above

Back 25

Their evolution preceded that of eukaryotes

Front 26

Ions move through ion channel by:
passive transport, endocytosis, diffusion, active transport

Back 26

passive transport

Front 27

Phospholipids are molecules that? contain phosphate, have nonpolar "tails" and polar "heads", form the lipid bilayer of the cell membrane, all of the above

Back 27

all of the above

Front 28

observation: hypothesis::
certainty: investigation, hypothesis: prediction, guess:hypothesis, theory:observation

Back 28

hypothesis:prediction

Front 29

The variable that is measured in an experiment is ____variable?
independent, dependent, experimental, control

Back 29

dependent

Front 30

Surface area is an important factor in limiting cell growth because?
materials cannot enter the cell if the cell is too large,waste products cannot leave the cell if it is too small, the cell may become too large to take in enough food and too remove enough wastes, the cell can burst if the membrane becomes too large

Back 30

the cell may become too large to take in enough food and to remove enough waste

Front 31

cell:membrane::?
nucleus: chromosome, nucleus:nuclear envolepe, cell:DNA, chromosome:DNA

Back 31

nucleus: nuclear envelope

Front 32

The energy that drive metabolism in animals come from?
homestasis, food, hereity, water

Back 32

food

Front 33

Ions move through ion channel by?
passive transport, endocytosis, diffusion, active transport

Back 33

passive transport

Front 34

The interior portion of a cell membrane forms a nonpolar zone that.....
allows polar molecules to pass throught the membrane, prevents ions and most large molecules from passing through the membrane, allows food to pass through the membrane, None of the above

Back 34

prevents ions and most large molecules from passing through the membrane.

Front 35

In which direction does the energy flow?
plants->sun->plant eater->meat eater,
sun-> plants->plant eater->meat eater,
sun->plants->meat eater->plant eater,
plant eater->plants->sun->mat eater

Back 35

sun->plants->plant eater->meat eater

Front 36

Which of the following pairs contains unrelated items?
ribosomes-proteins, cell wall-animall cell, mitochondira-ATP, eukaryote-amoeba

Back 36

cell wall-animal cell

Front 37

The disperal of ink in a beaker of water is an example of...
diffusion, active transport, endocytosis, osmosis

Back 37

diffusion

Front 38

The double membrane surrounding the nucleus is called the....
nucleolus, nuclear envelope, ribosome, nuclear wall

Back 38

nulclear envolepe

Front 39

Most of the food and waste material that move into and out of the cell pass through...
channel protein, receptor protein, enzymes, marker protein

Back 39

channel protein

Front 40

frogs: acid rain::...
wind:smoke, rain forests:fire, theories:prediction, salamanders:hot weather

Back 40

rain forests: fire

Front 41

As a result of diffusion, the concentration of many types of substances...
always remains greater inside the membrane, always remains greater outside of a membrane, eventually becomes balanced on both sides of a membrane, becomes imbalanced on both sides of a membrane

Back 41

eventually becomes balanced on both sides of the membrane

Front 42

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 suggestion was:
hypothesis, theory, scientific "truth", prediction

Back 42

hypothesis

Front 43

Which of the following transmit information into a cell by binding to a signal molecule?
receptor protein, end proteins, channel proteins, marker proteins

Back 43

receptor protein

Front 44

As a characteristic of living things, homestasis relates most directly to which of the following biological themes?
stability, evolution, scale and structure, interacting systems

Back 44

stability

Front 45

Dr. Ross knew that the parasite Plasmodium was always found in the blood of malaria patients. He thought that if the Anopheles mosquitoes were responsible for spreading malaria, then Plasmodium would be found in the mosquitoes. this idea was a.....
scientific truth, prediction, theory, hypothesis

Back 45

prediction

Front 46

____is the sum of all the chemical reactions carried out in an organism.

Back 46

Metabolism

Front 47

Receptor proteins can change the ____ of the cell membrane

Back 47

permiablilty

Front 48

Refer to the illistration above (pg.8. Cells often engulf extracellular particles and fluid, as shown in figure A. This is called__

Back 48

endocytosis

Front 49

Refer to the illustration above(pg.8) the process shown in figure B is called ___

Back 49

exocytosis

Front 50

Carrier proteins ___ shape to transport sugars to the interior of cells.

Back 50

change

Front 51

The organelles that are the site of protein synthesis in a cell are called ______

Back 51

ribosomes

Front 52

If a cell is placed in a(n) __ solution, water flows into the cell at a rate that is equal to the rate at which ater flows out of the cell

Back 52

isotonic

Front 53

To function properly, all living things maintain a constant internal environment through the process of ____

Back 53

homestasis

Front 54

An educated guess, or ____,may be tested by experimentation

Back 54

hypothesis

Front 55

A(n)___ experiment is one in which a group that recieves some experimental treatments is compared to a group that does not recieve the experimental treatment.

Back 55

controlled

Front 56

Receptor proteins may act as ___, speeding up chemical reactions inside the cell.

Back 56

enzymes

Front 57

The statment that "cells arise only from exsisting cells" is part of _________

Back 57

cell theory

Front 58

Modern prokaryotes are generally known as _____

Back 58

bacteria

Front 59

When the concentration of free water molecules is higher outside a cell than inside the cell water will diffuse ___ the cell

Back 59

into

Front 60

Scientist think that ___ cells evolved 1.5 billion years ago.

Back 60

eukaryotic

Front 61

If a cell is placed in a(n) _____ solution, water will flow out of the cell.

Back 61

hypertonic

Front 62

Proteins that aid in moving substance into and out of the cell are called ____ proteins

Back 62

transport

Front 63

A unifying explanation for a broad range of observations is a(n) _____ theory
Molecules of ____ inside cells encode information to direct their growth and development.

Back 63

DNA

Front 64

How do you explain the observed relationship between salt concentration and rate of contractile vacuole contraction?

Back 64

The lower the salt concentration it is able to contract more water.

Front 65

If something happened to a paramecium that caused its contractile vacuole to stop contracting, what would you expect to happen? Would this result occur more quickly if the paramecium was in water wit a high salt concentration or in water with low salt concentration?

Back 65

The cell would swell up because its retaining water, it would work in low salt concentration because it has water to take out because of this water is accumulated rapidly when put in low salt concentration.

Front 66

Describe three ways in which the binding of a signal molecule to a receptor protein can change the functioning of a cell?

Back 66

Receptor Protein in which the activities changes in cell.
Receptor Protein can act as an enzyme or active enzyme in the cell. This chemical changes molecules in the cytoplasm.
Receptor Protein can cause the formation of the second messenger- changes the function of the cell by activating enzymes or opening ion channels.
Receptor protein can open a channel in the membrane

Front 67

Describe the movement of proteins through the internal membrane system of the cell?

Back 67

1) Power protein made by ribosomes by the rough ER and once made proteins move from the ribosomes ER where they are transported to the cell
2) Portions of the endoplasmic reticulum forming vesicles
3) Vesicles containing newly made protein that move through the cytoplasm to the Golgi apparatus
4) Golgi apparatus modifies protein that is received by the vesicle.
5) New vesicle formed from the Golgi apparatus membrane repackages them
6) New vesicle move through the cell membrane where modified proteins are released outside the cell.

Front 68

Name the six characteristics that are considered distinct properties of all living things.

Back 68

1)Metabolic Reaction
2)Reproduce
3)Homeostasis
4)Heredity
5)Response to the environment
6)Growth and Development

Front 69

The results of an experiment do not support the hypothesis that the experiment was designed to test. Was the experiment a waste of time? Explain.

Back 69

No the experiment was not a waste of time because even though it didn’t go with your hypothesis you learned something new and your learning something either way, and no experiment is a waste of time.

Front 70

Why is it dangerous for humans to drink sea water?

Back 70

It is dangerous because too much slat can cause cells to swell up and burst because of the hypertonic solution increases concentration of the bodily fluids which is dangerous to the body.

Front 71

A unifying explanation for a broad range of observation is a(n)____

Back 71

theory

Front 72

Which of the following statements is correct?
As the population continues to grow, the demand for food is going to strain our ability to feed all the people, Biologists are seeking new crops that grow more efficiently in tropical soils, Genetic engineers are transplanting genes into plants to create crops that are more resistant to insects, All of the above

Back 72

All of the above

Front 73

The destruction of rain forests leads to.....
the extinction of many species of plants, a lessinging of the worlds biological diversity, the extinction of many species of animals, all of the above

Back 73

all of the above

Front 74

The control and experimental group are desinged to be identical? T or F

Back 74

False

Front 75

Most typically, the order in which the steps of scientific investigations are applied is.
prediction,observation,hypothesis,conclusions,controlled testings,questions:
observation,questions,hypothesis,predictions,controlled testings,conclusion:
observations,predictions,hypothesis,controlled testing,conclusions,questions:
observations,hypothesis,predictions,controlled testings,questions,conclusions

Back 75

observation,questions,hypothesis,predictions,controlled testings,conclusion