Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Bio Final Flashcards > Bio > Flashcards

Bio Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Negative feedback

A

Stimulus triggers a response that OPPOSES the stimulus to restore homeostasis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Positive feedback

A

Reinforces/amplifies the stimulus temporarily before homeostasis is restored

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Independent variable

A

what is not changed in the experiment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Dependent variable

A

Changes because of the independent variable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Homeostasis

A

Stable internal conditions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Constants

A

Variables that are the same in every trial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Characteristics of life shared by all organisms

A
  • share genetic code: (DNA-RNA-protein)
  • maintain homeostasis
  • reproduce
  • made of cells
  • require materials and energy for metabolism
  • evolve
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Molecule

A

2 or more atoms bonded together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Polarity

A

Unequal sharing of electrons in a covalent bond

Ex: water is a polar molecule and is crucial to maintaining homeostasis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Covalent bonds

A

When 2 atoms share electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Hydrogen bonds

A

Form from the + and - ends of 2 polar molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Cohesion

A

Water molecules hydrogen binding to each other

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

4 properties of water

A

1) Cohesion (creates surface tension) / Adhesion (allows water to move roots up to leaves aka capillary action)

2) High Specific Heat (lots of energy is required to change temp/ cause evaporation

3) Ice Floats (ice is less dense than water and insulated bodies of water)

4) Versatile solvent ( polar molecules and ions are hydrophilic so they dissolve in water)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Dehydration synthesis

A

Brings monomers together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Hydrolysis

A

Breaks polymer into monomer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Organic molecules

A

Contain carbon and are created by organisms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Monomer

A

Small organic molecule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Polymer

A

Large organic molecule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Synthesis

A

Put together

20
Q

Lysis

A

Break apart

21
Q

4 categories of organic molecules

A

1) Carbohydrates
2) proteins
3) nucleic acid
4) lipids

22
Q

Carbohydrates

A
  • # 1 energy source
  • is a monosaccharide
  • Ex: sugars like glucose and fructose
23
Q

Polysaccharide

A

Ex: starch, glycogen, cellulose

24
Q

Proteins

A
  • Provide structural support and regulate metabolism
  • monomer: amino acid
  • polymer: polypeptide
25
Q

Nucleic acids

A

Store and transmit genetic info

Monomer: nucleotide
Polymer: polynucleotide (DNA and RNA)

26
Q

Lipids

A

NO monomer/ polymers

Ex: triglycerides, wax, steroids, phospholipids

Nonpolar/ hydrophobic

27
Q

Triglyceride

A

Formed from 3 fatty acids bonding by glycerol

28
Q

Why do our bodies need nutrients

A

To grow, repair, maintain homeostasis

29
Q

Simple carbohydrates

A

Sweets, soda, juices

30
Q

Complex carbohydrates

A

High in starch, pasta, bread, cereal, AND fiber

31
Q

Endothermic reactions

A

Store energy by forming bonds and produce LARGER and COMPLEX molecules

32
Q

Exothermic reactions

A

RELEASE energy by breaking bonds and produce SMALLER and SIMPLER molecules

33
Q

Enzyme

A

Protein that speeds up (catalyzes) by lowering the activation energy

34
Q

Substrate

A

The reactants that fit/bind into an enzyme active site

35
Q

Denature

A

Lose its shape

36
Q

ATP

A

Energy

37
Q

Metabolism

A

All the chemical rxns that occur in an organism/ system

38
Q

Energy coupling

A

Energy RELEASED from exothermic rxns used for endothermic Processes like: active transport

39
Q

3 things plant cells have but animals do NOT

A

Cell wall, Chloroplasts, and large central vacuole

40
Q

Prokaryotes

A

Archea and Bacteria
DO NOT have membrane organelles

41
Q

Eukaryotes

A

Plants, animals, fungi, protists
ARE MADE with organelles

42
Q

Identify the site of protein synthesis

A

Ribosomes

43
Q

Active transport

A

Solutes are being pumped against the concentration from low to high concentration

44
Q

The organelle responsible for lipid synthesis

A

ER

45
Q

What is found in animal cells but not plant cells

A

Lysosomes

Bio Final Flashcards (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions