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Flashcards in BioChemQuizSummary Deck (91)
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1

Two differences between a Prokaryotic and Eukaryotic cell

1. Mammalian cells are eukaryotic.
2. Eukaryotic cells have a nucleus.

2

T/F Cilia is an organelle only found on a Eukaryotic cell and is used by the cell for locomotion.

False.
It's not ONLY found on a eukaryotic cell.

3

A law is best described as ...

A hypothesis or theory that is tested repeatedly with the same results and thought to be without exception.

4

Name a component of most proteins

Sulfur

5

What's necessary for cellular energy?

Oxygen

6

What's a component of all protein and nucleic acid?

Nitrogen

7

Name the positive ion for extracellular tissue

Sodium

8

How many elements occur in nature?

92

9

A hypothesis is a ...

Statement or idea that describes or attempts to explain observable info.

10

An experiment is ...

A controlled testing of the properties of a substance or system through carefully recorded measurements

11

A theory is ...

It predicts the outcome of new testing based on past experimental data.

12

Changing of matter is called ...

A reaction

13

Protons are ...

1. Subatomic & exist in the core of an atom
2. Have a positive charge
3. Are found in the nucleus

14

Atoms are ...

The smallest particles "not divided"

15

Solids have ...

A definite shape and volume

16

Describe physical properties

Color, form, density

17

There are 2 types of mixtures, what are they?

Heterogeneous
Homogeneous

18

When 2 liquids do mix they are called?

Miscible

19

What should you think when you hear mitochondria?

Powerhouse of the cell, where ATP is made.

20

When measuring %, what is the purpose and formula for it?

? / ? Total x 100 = %
To better understand what we are dealing with when measuring chemistry.

21

Describe how an enzyme works in the body

1. Enzyme comes together with the substrate
2. They combine to form the enzyme substrate complex
3. They separate into the enzyme and the new product (the enzyme can be used again)

22

Name 3 of the six globular protein functions

1. Contact signaling (cells talk to each other, two proteins on the outer layer attach to each other briefly or for cell-to-cell adhesion
2. Chemical signaling (Receptors on cell's surface attach with a ligand (e.g. insulin) to initiate a chemical reaction inside the cell.
3. Channel proteins (Transport of molecules through the plasma membrane. It's a passive process and therefore does not require ATP.

23

T/F Density is the measure of mass over the weight of a substance, which is grams per milliliter.

False.

24

What is the function of an enzyme?

To lower the activation energy

25

What is the primary role of peroxisomes?

They are the spa of the cell.
They help counter free radical damage.
They carry two major types of enzymes: peroxidase, which assists in converting free radicals to hydrogen peroxide, and catalase, which reduces hydrogen peroxide to water.

26

The atomic number is equal to ...

the number of protons in the nucleus of an atom

27

What is the octave rule?

A rule showing the repeated chemical groups every eight elements

28

How many families of elements are there?

6

29

What does each period end with?

A noble gas

30

Groups are divided into subgroups called

Transition and representative