Dna Review

Question 1

Cell theory

Answer 1

1) Created by other cells
2) basic structure of life
3) organisms are made up of one or more cells

Question 2

how specialized cells share a division of labor

Answer 2

Specialized cells do one type of job

Question 3

5 levels of organization in the human body

Answer 3

Cell
Tissue
Organ
Organ system
Organism

Question 4

difference between an element and a compound

Answer 4

Element: made of one chemical

Compound: made of more than one element

Question 5

functions of the 4 organic compounds found in cells

Answer 5

Lipids
Carbon
Protein
Carbohydrates

Question 6

the differences between plant and animal cells

Answer 6

Plant cells have cell walls, and chloroplasts while animal plants don’t

Animal cells have Lysosome

Question 7

Function of cell wall

Answer 7

To protect the plant cell

Question 8

Function of ribosomes

Answer 8

Creates proteins

Question 9

Function of nucleus

Answer 9

To control cells action

Question 10

Function of mitochondria

Answer 10

Powerhouse of the cell

Question 11

Organelles that help move materials through the cell

Answer 11

Endoplasmic reticulum
Golgi apparatus
Cell membrane

Question 12

Characteristics of living thins

Answer 12

Reproduce
Responds to things around the 
Gets rid of wastes
Grows
Cellular organization
Uses energy

Question 13

The four needs of living things

Answer 13

Food
Stable internal conditions
Living space
Water

Question 14

Autotrophs and heterotrophs

Answer 14

Autotrophs: creates their own food

Heterotrophs: Feeds off of other organisms

Question 15

Asexual vs sexual

Answer 15

Asexual: has on,y one parent and is a clone of the parent
Sexual: has two parents

Question 16

Structure of rna and Dna

Answer 16

Rna: half a Double helix
Dna: double helix

Question 17

Function of DNA RNA

Answer 17

Rna provides codes to make proteins

Dna Creates codes

Question 18

Gene

Answer 18

A sequence of DNA that determines a trait and is passed from parent to offspring.

Question 19

DNA replication

Answer 19

1) DNA unzips itself
2) nitrogen bases in the nucleus pairs up with the bases on the DNA halves
3) two new identical DNA molecules are formed

Question 20

Multicellular Vs Unicellular

Answer 20

Multicellular: Made more of one cell

Unicellular: made of one cell

Question 21

Necessary inorganic compound cells need to live

Answer 21

Water

Question 22

Why would cells need water

Answer 22

Carries substances through the body
Water changes temperatures slowly
Dissolves substances
Helps cells keep shape

Question 23

Which Nucleic acid pairs up with Adenine

Answer 23

Thymine

Question 24

What protein pairs up with cytosine

Answer 24

Guanine

Question 25

What is the protein RNA has but not DNA

Answer 25

Uracil