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Flashcards in Biological elements Deck (54)
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1

Biological Chemistry (Condensed) Part 1 - Bio Elements (introduction video)

2

What 4 elements are the primary building blocks for all living things?

Carbon Hydrogen Oxygen Nitrogen

3

What is the symbol for carbon?

C

4

What is the symbol for hydrogen?

H

5

What is the symbol for oxygen?

O

6

What is the symbol for nitrogen?

N

7

What other 2 elements have important roles in the biochemistry of cells?

Phosphor and sulfur

8

What is the symbol for phosphor?

P

9

What is the symbol for sulfur?

S

10

What 4 elements play a slightly lessor role in biochemistry?

  • Sodium
  • Potassium
  • Calcium
  • Iron

11

What is the symbol for sodium

Na

12

What is the symbol for potassium?

K

13

What is the symbol for calcium?

Ca

14

What is the symbol for iron?

Fe

15

What is the definition of a molecule?

When two or more atoms bond together

16

What is a covalent bond?

When two atoms share a pair of electrons

17

How many bonds can a carbon atom form?

4

18

How many bonds can a nitrogen atom form?

3

19

How many bonds can a oxygen atom form?

2

20

How many bonds can a hydrogen atom form?

1

21

Which element is the backbone of most biological molecules?

Carbon

22

What is an ion?

An atom or molecule in which the total number of electrons is not equal to the total number of protons.

23

What is a cation?

An atom or molecule that has lost one or more electrons to gain a net positive charge

24

What is an anion?

An atom or molecule that has gained one or more electrons, which results in a net negative charge.

25

What is an ionic bond?

One atom in the pair donates an electron and the other receives it. This forms positive and negative ions which are held together via the attraction of the opposite charges.

26

What are ions in a solution called?

electrolytes

27

What are the common cations you need to know?

  • Calcium ions
  • Sodium ions
  • Potassium ions
  • Hydrogen ions
  • Ammonium ions

28

What is the symbol for a calcium ion?

[Ca2+]

29

What is the symbol for a sodium ions?

[Na+]

30

What is the symbol for a potassium ions?

[K+]