Biology Final (Scientific Literacy, Ecology, Energy)

studied byStudied by 23 people
5.0(2)
get a hint
hint

What are the six characteristics of life?

1 / 82

Tags and Description

Algebra

4th

83 Terms

1

What are the six characteristics of life?

-respond to environment

-grow and develop

-reproduction

-maintain homeostasis or keeping things constant

-complex chemistry

-cells

New cards
2

responding to the environment

It means to detect changes in an environment. For example: stepping on a turtle (the turtle will move)

New cards
3

reproduction

Producing offspring, asexually (an exact copy of organism) or sexually (different)

New cards
4

maintaining homeostasis/keeping things constant

keeping things relatively stable on the inside regardless of the conditions around them

For example: humans maintain a stable internal body temperature

New cards
5

complex chemistry

Consisting of large, complex molecules and undergo many complicated chemical changes to stay alive

For example: metabolism

New cards
6

ecology

The study of the relationship between organisms and their environment

New cards
7

lag phase

slow population growth due to low number of individuals to mate

New cards
8

exponential phase

plenty of resources and mates lead to rapid growth

New cards
9

carrying capacity

the maximum number of of individuals an ecosystem can hold

New cards
10

Parasitism

a relationship between two organism where one is benefitted and one is harmed

New cards
11

Commensalism

a relationship between two organisms where one is benefitted and the other is not harmed nor benefitted

New cards
12

Mutualism

a relationship between two organisms where both are benefitted

New cards
13

What is the food pyramid with each trophic level?

-quaternary consumers (carnivores)

-tertiary consumers (carnivores)

-secondary consumers (carnivores)

-primary consumers (herbivores)

-primary producers (plants)

<p>-quaternary consumers (carnivores)</p><p>-tertiary consumers (carnivores)</p><p>-secondary consumers (carnivores)</p><p>-primary consumers (herbivores)</p><p>-primary producers (plants)</p>
New cards
14

niche partitioning

one species will naturally be better suited to a niche and the other will adapt to occupy a slightly different niche

New cards
15

Competitive exclusion

One species will naturally be better suited to a niche and cause the other species to decline and go extinct

New cards
16

Keystone species

A species that has a huge effect on the biodiversity of its ecosystem

New cards
17

How much energy is passed from one trophic level to the next?

10%

New cards
18

What do animals use the rest of the 90% of energy for?

  • Homeostasis (breathing)

  • Moving

  • Dying

New cards
19

What determines global climate patterns?

Input of solar energy and the planet’s movement in space

New cards
20

Why do equatorial regions get hotter?

They receive sunlight more directly

New cards
21

Why are equatorial regions moister?

Ascending moist air releases moisture doldrums. The sun makes all the water evaporate and that causes heavy rainfall.

New cards
22

How are deserts created/found?

The dry air goes away from the equator created dry deserts. They are found away from the equator.

New cards
23

What is the most distinguishing feature for each of the biomes?

Temperature and precipitation

New cards
24

What are the 9 biomes?

  • desert

  • Tropical rainforest

  • Taiga

  • Deciduous forest

  • Savana

  • Grassland

  • Arctic tundra

  • Alpine tundra

  • Chaparral

New cards
25

What are 3 ways organisms could divide or partition a niche so there is no exclusion?

  • compete for different food sources

  • Forage at different times

  • Forage in different areas

New cards
26

trophic cascade

happens when keystone species have an indirect impact has a positive influence on organisms for outside of its own food chain.

For example: Wolves positively affect elk, grass, trees, birds, beavers, and more

New cards
27

What are the building blocks of all living things?

The four macromolecules

  • carbohydrates

  • Proteins

  • Nucleic acids

  • Lipids

New cards
28

What is the purpose of carbohydrates?

Provides the body with glucose

New cards
29

What is the purpose of nucleic acid

Stores energy

New cards
30

What is the purpose of lipids?

energy source, genes, dna

New cards
31

Photosynthesis

Process where plants transform light energy and reactants into chemical energy that can be sued to do work

New cards
32

Cellular respiration

Something organisms use to obtain chemical energy needed

New cards
33

What is aerobic cellular respiration?

Cellular respiration using oxygen

New cards
34

What is anaerobic cellular respiration?

Cellular respiration without oxygen

New cards
35

What is the equation for photosynthesis?

6CO2 + 6H20 → C6H12O6 + 6O2

New cards
36

What is the equation for cellular respiration?

C6H12O6 + 6O2 → 6CO2 +6H2O + ATP

New cards
37

How is energy transformed in photosynthesis?

  1. light (kinetic)

  2. electrons (chemical)

  3. proton gradient (potential)

  4. moving protons (kinetic)

  5. ATP (chemical)

New cards
38

What happens one the thylakoid creates its end product?

It will be used in the calvin cycle (LIR)

New cards
39

Where does the calvin cycle take place?

Stroma

New cards
40

What is the first step of LDR?

UV rays from the sun hit the pigments in photosystem 2 which causes water to split.

New cards
41

What is the second step of LDR?

The electrons are energized by light energy from the sun

New cards
42

What is the third step of LDR?

Electrons are captured by electron carries

New cards
43

What is the fourth step of LDR?

Electrons are passed from acceptor to acceptor like a relay race. As this occurs, the electrons are loosing energy

New cards
44

What is the fifth step of LDR?

The energy from the electrons is used to pull H+ from the stroma into the lumen.

New cards
45

What is the sixth step of LDR?

a proton gradient is created in the lumen

New cards
46

What is the seventh step of LDR?

The protons are under enormous pressure to esacpe

New cards
47

What is the eighth step of LDR?

The protons escape by rapidly moving through the enzyme ATP synthase

New cards
48

What is ATP synthase?

The enzyme that makes ATP

New cards
49

What is the ninth step of LDR

The moving protons are used to spin the turbine in ATP synthase

New cards
50

What is the tenth step in LDR

The spinning turbine is used to add a phosphate to ADP, making ATP

New cards
51

What is the 11th step in LDR?

The electrons are received by photosystem 1 where they are re-energized by light

New cards
52

What is the 12th step in LDR

Newly energized electrons are passed along 3 electron carries and then loaded onto NADP+ to make NADPH

New cards
53

What is the 13th step in LDR?

Now the ATP and NADPH will carry usable energy from the thylakoid to the stroma to be used in the calvin cycle

New cards
54

What is the first step of the calvin cycle?

5C sugar is combined with CO2 by the enzyme RuBisCo to produce a 6C sugar, which is very unstable

New cards
55

2nd step of calvin cycle?

The 6c sugars breaks into two 3c units

New cards
56

3rd step of calvin cycle?

The energy from ATP and the electrons from NADPH are then used to rearrange 3c units

New cards
57

4th step in calvin cycle?

The carbon reorganizer is a series of reactions that reforms the 5c sugars and sets aside 1 carbon to be used in glucose

New cards
58

5th step in calvin cycle?

The cycle must occur 6 times to produce glucose

New cards
59

What is the purpose of cellular respiration?

To convert energy stored in glucose C6H12O6 to energy in the form of ATP

New cards
60

What is the first step of cellular respiration?

Glycolysis (no oxygen needed)

New cards
61

Where is the glycolysis located

cytoplasm

New cards
62

What is the purpose glycolysis?

Splits glucose into 2 pyruvates

New cards
63

What is second step in cellular respiration?

the kreb cycle

New cards
64

Where is the kreb cycle located?

Matrix of mitochondria

New cards
65

What is the purpose of the kreb cycle?

Pyruvate’s broken down to acquire electrons

New cards
66

What is the third step of cellular respiration?

Electron transport chain

New cards
67

Where is the ETC located?

The inner membrane of the mitochondria

New cards
68

What is the final electron acceptor in the chain is reduced to water

Oxygen

New cards
69

The electron transport chain yields how many ATP for each molecules of glucose

28 ATP

New cards
70

An experimenter is testing the effects of the drug Y on blood pressure.  Which of the following would be the independent variable?

  • Heart Rate

  • Blood pressure

  • Amount of drug Y

Amount of drug Y

New cards
71

Another name for the independent variable is

Manipulated

New cards
72

Another name for dependent variable is

Responding

New cards
73

What is the ultimate source of energy in an ecosystem?

Sun

New cards
74

What type of competition is between members within a species.

Intraspecies Competition

New cards
75

What type of energy is the energy of movement?

Kinetic

New cards
76

What type of energy is present because of an object's position or structure?

Potential

New cards
77

What type of energy is found in the bond between atoms of a larger molecule?

chemical

New cards
78

What type of reaction releases energy and involves breaking a larger molecule into smaller ones?

Exergonic

New cards
79

What molecule is the all purpose energy source for almost every reaction in a cell?

ATP

New cards
80

The goal of photosynthesis is to make glucose.  What are the two molecules of chemical energy that are made in the LDR so they can be used in the LIR to make glucose?

ATP and NADPH

New cards
81

Where do the Light Dependent Reactions (LDR) take place?

Thylakoid

New cards
82

What substance is able to absorb light energy?

Pigments and chlorophyll

New cards
83

Light energy is used to split water and then is first converted into what energy?

Energized electrons

New cards

Explore top notes

note Note
studied byStudied by 275 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 16 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 9 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 2 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 4 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 7 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 351 people
Updated ... ago
5.0 Stars(1)

Explore top flashcards

flashcards Flashcard48 terms
studied byStudied by 1 person
Updated ... ago
5.0 Stars(1)
flashcards Flashcard39 terms
studied byStudied by 4 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard30 terms
studied byStudied by 15 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard90 terms
studied byStudied by 3 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard60 terms
studied byStudied by 9 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard74 terms
studied byStudied by 24 people
Updated ... ago
5.0 Stars(2)
flashcards Flashcard53 terms
studied byStudied by 20 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard270 terms
studied byStudied by 6 people
Updated ... ago
5.0 Stars(1)