1.3-1.4 Quiz

Question 1

What are cells made up of?

Answer 1

Living matter and is surrounded by something protective(think of a cell wall)

Question 2

What are cells?

Answer 2

The smallest unit of organisms that are alive

Question 3

What are three main things cells do?

Answer 3

Grow, respond to their surroundings, and reproduce

Question 4

What are two characteristics that cells have?

Answer 4

They are organized and highly complex

Question 5

What two types of felled organisms?

Answer 5

Multicellular(many cells)

Unicellular(one cell)

Question 6

What are the two types of reproduction processes?

Answer 6

Asexual-celled organism break in half and forms two organisms that are identical;portion of a organism breaks away to make another identical organism
Sexual-two cells from different parents unite to produce the first cell of a new organism

Question 7

What are the characteristics that all living things have in common?

Answer 7

Made up of units called cells, can reproduce, based on universal genetic code, can grow and develop, can obtain and use materials for energy, they respond to their environment, maintain a stable internal environment, and change overtime

Question 8

Why do organisms need energy?

Answer 8

They use energy to grow, develop, and reproduce

Question 9

What is metabolism?

Answer 9

The combination of reactions through which an organism builds up or break down materials

Question 10

What is biology?

Answer 10

The study of living things

Question 11

Why do scientists need a common system of measurement?

Answer 11

Researchers need replicate each other’s experiments and most experiments involve measurements. They thought it would easier if used a common system of measurement that was simple

Question 12

When collecting data and doing experiments, what system of measurement is used?

Answer 12

Metric system

Question 13

What is the metric system?

Answer 13

System of measurement whose units are based on certain physical standards and scaled on multiples of ten. It’s also a decimal system

Question 14

1000m=______

Answer 14

1km

Question 15

1L=______

Answer 15

1000mL

Question 16

1000kg=_______

Answer 16

10000g

Question 17

When scientists are collecting data, what are they trying to find out?

Answer 17

Whether certain factors changed or remained the same

Question 18

What does graph of data make easier to recognize than a table of data?

Answer 18

Patterns can easier to understand

Question 19

What are microscopes?

Answer 19

Devices that produce magnified images of structures that are to be seen with the unaided eye

Question 20

What are compound light microscopes?

Answer 20

Devices that allow light to pass through the specimen and use two lenses to form an image

Question 21

How do chemicals stains make light microscopes more useful?

Answer 21

They can show the specific structures in a cell

Question 22

What are the two main types of electron microscopes?

Answer 22

Transmission(TEM)

Scanning(SEM)

Question 23

How must samples be prepared for observation for an electron microscope?

Answer 23

They must preserved and dehydrated before placed under an electron microscope

Question 24

Compare TEMs and SEMs produce images.

Answer 24

TEM-shine a beam of electrons a thin specimen

SEM-scan a narrow beam of electrons back and forth across the surface of a specimen

Question 25

A group of cells grown a nutrient solution from a single original cell is called a what?

Answer 25

Cell culture

Question 26

What technique do biologists use to separate one cart of a cell from the other?

Answer 26

They use a technique known as cell fractionation to separate the different parts

Question 27

What is the most important lab safety rule?

Answer 27

Allows follow the teacher’s and textbook instructions exactly