Science Cells

Question 1

Three parts of cell theory

Answer 1

• All living things are composed of cells
• Cells are basic unit of structure and function in living things
• All cells are produced from other cells

Question 2

Function of cell membrane

Answer 2

Acts as gatekeeper, letting materials in and out of the cell

Question 3

Function of cell wall

Answer 3

Protects the cell

Question 4

Function of the nucleus

Answer 4

Control center

Question 5

Function of vacuole

Answer 5

To store food and water

Question 6

Function of cytoplasm

Answer 6

Holds in place

Question 7

Function of Golgi bodies

Answer 7

Receives materials through the ER, packages protein and other foods and sends them to other parts of the cell

Question 8

Function of chloroplasts

Answer 8

Organelles that capture the sun’s energy and use it to produce food for the cell

Question 9

4 main chemical compounds found in cells

Answer 9

-carbohydrates
-proteins
-lipids
-nucleic acids

Question 10

example of lipids

Answer 10

-cholesterol

Question 11

examples of carbohydrates

Answer 11

-sugar
-starch
-fruit, vegetable
-potato, bread

Question 12

examples of proteins

Answer 12

-amino acids
-enzymes
meat
-eggs

Question 13

Purpose of nucleic acids

Answer 13

To function and control the cell

Question 14

Purpose of a lipid

Answer 14

-Store energy
-provide energy
-make up organelles

Question 15

Purpose of proteins

Answer 15

To make cells

Question 16

Why is water so important in cells?

Answer 16

• helps chemical reactions take place
  -maintain size and shape
  -keep temperature regulated
  -carry substances in and out of cell

Question 17

Difference between active and passive transport

Answer 17

active uses energy, passive doesn’t

Question 18

which two organelles are ONLY in plant cells

Answer 18

chloroplast and cell wall

Question 19

why would a plant cell have larger vacuoles than an animal cell?

Answer 19

larger storage area

Question 20

what are similarities and differences between osmosis and diffusion?

Answer 20

diffusion is where molecules move from higher concentration to lower. osmosis is too but just for water

Question 21

what is the purpose of a cell?

Answer 21

basic unit of structure and function of a living thing

Question 22

what is the smallest unit of matter?

Answer 22

atom

Question 23

who discovered cells under the microscope?

Answer 23

Robert Hooke

Question 24

First person to discover single-celled organisms in pond water

Answer 24

Anton van Leeuwenhock

Question 25

Why are there three objective lenses on the microscope

Answer 25

To magnify objects even more

Question 26

What is magnification?

Answer 26

Ability to make things look larger than they are

Question 27

How does a microscope work?

Answer 27

Magnifies the object to make it larger and helps see parts clearly

Question 28

Which type of transport requires energy?

Answer 28

active

Question 29

True or false - Carbohydrates, proteins and lipids all have the function of providing energy?

Answer 29

True

Question 30

Potatoes, rice noodles, bread, fruits and veggies are an example of what?

Answer 30

carbohydrates

Question 31

True or false - Carbohydrates, proteins and lipids all make up cell organelles?

Answer 31

True

Question 32

True or false - Fats, waxes and oils (meats, cheese and eggs) are examples of carbohydrates?

Answer 32

false - they are lipids

Question 33

True or false - both carbohydrates and lipids store energy

Answer 33

True

Question 34

True or false - Proteins build muscle

Answer 34

true

Question 35

True or false - lipids speed up chemical reactions

Answer 35

False - proteins (enzymes) speed up chemical reactions

Question 36

True or false - amino acids and enzymes are proteins

Answer 36

true

Question 37

Are hair and fingernails proteins?

Answer 37

Yes

Question 38

Meat, fish, eggs, nuts and beans are proteins?

Answer 38

True

Question 39

What provides instructions that the cells need to carry out all the functions of life?

Answer 39

nucleic acids

Question 40

Two examples/types of nucleic acids

Answer 40

DNA and RNA

Question 41

Which foods contain nucleic acids?

Answer 41

all foods