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Biology 100 > Test 1 > Flashcards

Test 1 Flashcards

0
Q

What is a prokaryote, eukaryotes?

A

Organism that contains NO nucleus and have no bacteria & archaea

Organism with a nucleus, contains DNA

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1
Q

Correct sequence of biological organization..

A 
Atoms
Molecules
Organelle 
Cell
Tissue
Organ
Organ system
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2
Q

Where are protons, neutron, and electrons located? What are there charges?

A 
Protons= located in atoms nucleus, have a positive charge
Neutrons= located in atoms nucleus! have neutral/ no charge
Electrons= orbits outside the nucleus, have negative charge
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3
Q

What type of chemical bonds share electrons in an atom?

A

Covalent bond

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4
Q

What’s the difference between covalent and ionic bonding?

A

Covalent= shares electron in an atom

Ionic= attraction between two oppositely charged ions

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5
Q

Ionic bond

A

Attraction between two oppositely charged ions

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6
Q

Name 4 macromolecules

A

– carbohydrates ( corn, starch)

– proteins (muscle tissue)

– lipids (fats, oil & waxes)

– nucleic acids (DNA & RNA)

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7
Q

What is a nucleotide?

Consists of three things

A

Building block of nucleic acid, consists of phosphate group, nitrogenous gas, & five carbon sugar

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8
Q

Difference between experimental and control group?

A

Experimental groups gets the treatment that’s being tested, control group does not.

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9
Q

Process by which a cell or organism maintains this state of internal consistency…

A

Homeostatsis

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10
Q

Particle of matter, composed of protons, neutrons, and electrons.

A

Atom

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11
Q

What sighs smallest unit of life that can function independently?

A

Cell

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12
Q

An atom or group of atoms that has lost or gained electrons, giving it N electrical charge, is called what?

A

Ion

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13
Q

Why do we have controls in experiments?

A

Compare changes and results in an experiment

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14
Q

Ph Scale, which side is acid? Which side is a base?

A

–0-7( acid),(hydrogen, H+)

7 (neutral)

7-14 (base)(hydroxide, OH-)

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15
Q

Positive Ion, is called?

Negative Ion, is called?

A

– cation ( net positive, attracted to negative)

– anion ( net negative, attracted to positive)

16
Q

What is periodic table, why do we have it?

A

Chart that list elements based on atomic #, properties, & electron configuration

To keep chemicals and chemical reactions in order, for us to continually exists..

17
Q

What is octet rule?

A

Filling shells in an atom

18
Q

FIRST LAW OF THERMODYNAMICS

A

Energy can’t be created or destroyed but can be transferred, energy remains constant

19
Q

What happens in dehydration synthesis?

A

2 small molecules join to form a larger molecule, water is removed, and a protein is created

20
Q

Difference between organic and inorganic molecules?

A

Organic, contains carbon

Inorganic, does not contain carbon

21
Q

What are the 4 types of protein structures? What Re they shaped like?

A

Primary Structure- (straight line)
Secondary Structure-(helix,twisted)
Tertiary Structure–(alpha helix, beta pleated)
Quaternary Structure (

22
Q

What are the 6 characteristics of life?

A
  1. Organization
  2. Energy use
  3. Internal constancy
  4. Reproduction
  5. Development
  6. Evolution
23
Q

Biochemical Reaction to cells is called?

What does it mean for your body?

A

–Metabolism

–coverts food into energy

24
Q

What makes a good hypothesis?

A

Observe
State probability
Gather info

25
Q

A long polymer made of amino acids and made up of proteins is called?

A

Polypeptide

26
Q

A polymer consisted of Amino Acids & folded into its functional 3-d shape is?

A

Protein

27
Q

What is the job of protein?

A

Required for structure, function, and regulation of body’s tissues & organs…

28
Q

What consists of 2 layers of proteins, phospholipids, and let’s things in and out of the cell?

A

Cell membrane

29
Q

What is mitochondria?

A

Carries out cellar respiration creating ATP molecules

Biology 100 (10 decks)

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