What Is Life?

Question 0

Plants

Answer 0

Perform photosynthesis
Multicellular
Autotrophs

Question 1

Eukaryotes

Answer 1

More complex cells

Question 2

Fungi

Answer 2

Heterotrophs

Multicellular

Question 3

Animals

Answer 3

Motile heterotrophs

Multicellular

Question 4

Protists

Answer 4

Don’t fit anywhere else

Usually single celled

Question 5

Prokaryotes

Answer 5

Simple cells
Bacteria
Archaea

Question 6

Homeostasis

Answer 6

Keeping conditions in your body at the right levels to sustain life, despite external changes

Question 7

Requirements for Life

Answer 7

Energy
Water
Food sources/nutrients
Climate

Question 8

Spontaneous generation

Answer 8

The idea that under the right conditions life can come from abiotic things

Question 9

Louis Pasteurs Experiment

Answer 9

1- open flask, cloudy
2- sealed flask, clear
3- open flask with burner at entry, clear
4- open swan neck flask- broth clear until neck was broken off

Question 10

Atom

Answer 10

Smallest particle of matter

Made of electrons, neutrons, protons

Question 11

Electrons

Answer 11

Negative charge, outside nucleus, make atoms bond, affects charge

Question 12

Neutrons

Answer 12

No charge, in nucleus, determine mass

Question 13

Protons

Answer 13

Positive charge, in nucleus, determines mass

Question 14

Molecule

Answer 14

2 or more atoms bonded together

Have properties different from the atoms they are made of

Question 15

Ionic Bond

Answer 15

Formed when oppositely charges ions attract

Question 16

Covalent bond

Answer 16

Atoms share electrons to fill up their orbitals to capacity

Question 17

Organelle

Answer 17

Organs of a cell which perform specialized tasks

Question 18

Cell

Answer 18

Smallest unit of life, make up all living things

Lots of different types with different jobs

Question 19

Tissue

Answer 19

A bunch of cells of the same type working together

Question 20

Organ

Answer 20

A bunch of tissues working together

Together the tissues perform a bigger job

Question 21

Organ system

Answer 21

Bunch of organs working together

Question 22

Organism

Answer 22

A single living thing

Question 23

Population

Answer 23

A group of organisms of the same species loving together

Question 24

Community

Answer 24

All living things in an area

Question 25

Ecosystem

Answer 25

- all living things in an area and their abiotic environment

Question 26

Cell theory

Answer 26

All organisms are made of cells Cells are the basic units of life All cells are produced from existin cells

Question 27

Functions of Living Things

Answer 27

Nutrition/energy/metabolism Growth and reproduction Response to environment

Question 28

Nutrition energy and merabolism

Answer 28

Catabolism- break sdown Anabolism- build up new products the cell can use Catabolism + anabolism= metabolism

Question 29

Growth and reproduction

Answer 29

All cells grow and reproduce trough the cell cycle

Question 30

Response to the environment

Answer 30

Goal is maintaining homeostasis usually through negative feedback

Question 31

Negative feedback

Answer 31

Applies an opposite force to balance a change

Question 32

Emergent properties

Answer 32

In multicellular organisms The whole is greater than the sum of it's parts Multicellularity allows for specialization of function which would not otherwise be possible Cells communicate

Question 33

Characteristics of all cells

Answer 33

Tend to be microscopic All cells enclosed by a membrane- homeostasis is impossible if there in no seperation Filled with with cytoplasm Help carry chemicals to maintain reactions in the body Maintain pressure inside cell

Question 34

Eukaryotic Cell Characteristcs

Answer 34

``` Nucleus to contain DNA Have membrane bound organelles Larger Sometimes have cell walls Multi or unicellular ```

Question 35

Prokaryotic cell characteristics

Answer 35

DNA floats freely No membrane bound organelles Always have a cell wall Always unicellular