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Flashcards in Exam 3 Deck (56)
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1

Define "cellular respiration"

The process by which cells obtain energy from glucose

2

What is the function of a Lysosome?

To break down and recycle macromolecules

3

Where does Glycolysis occur?

In the cytoplasm

4

What are the reactants of Glycolysis? (What goes in?)

2 ATP
NAD+
1 Glucose

5

What are the products of Glycolysis?

2 Net ATP
2 NADH
2 Pyruvate

6

Where does Pyruvate Processing occur?

In the matrix of the mitochondria

7

From each molecule of glucose, the cell obtains...?

10 NADH
2 FADH2
4 ATP

8

Where will hydrophilic proteins be synthesized?

Hydrophilic proteins will be synthesized in the cytoplasm

9

Where will proteins that are intended to go outside of the cell/embedded in the cell membrane be synthesized?

In the Rough ER

10

Where will the proteins of cellular respiration/glycolysis be synthesized?

By ribosomes in the cytoplasm

11

What is Glycosolation?

the protein is folded and modified by adding carbohydrates

12

What is the function of organelles in eukaryotic cells?

Organelles increase the efficiency of the biochemical reactions that occur in the cell

13

Testosterone is a steroid hormone that is responsible for the development of the male reproductive system. Which of the following organelles will be found abundantly in the cells of human testes?

Smooth ER

14

CFTR gene encodes for the CFTR transmembrane protein. Where is this protein synthesized?

Rough ER

15

Hexokinase is an enzyme that catalyzes the first reaction of glycolysis. Where will hexokinase be synthesized?

Hexokinase will be synthesized in the cytoplasm.

16

What is the function of microtubules?

Microtubules are used as the "railroad tracks" for vesicle transport.

17

What are the three types of molecular structures that make up the cytoskeleton?

Microtubules
Microfilaments
Intermediate Filaments

18

What is the function of peroxisomes?

Peroxisomes are responsible for the oxidation of fatty acids.

19

Which organelle is responsible for protein/lipid packaging and sorting?

The Golgi Apparatus

20

Which organelle is responsible for lipid synthesis?

the Smooth ER

21

Which organelle is responsible for protein synthesis?

the Rough ER

22

Exergonic reactions are...

Catabolic, and they release energy by breaking bonds

23

Endergonic reactions are...

Anabolic, and they absorb energy by forming bonds

24

During which two stages of Cellular Respiration does Substrate Level Phosphorylation occur?

Substrate level phosphorylation occurs in glycolysis and the Krebs Cycle

25

all enzymes are

proteins

26

What happens to a reaction if there is too much kinetic energy?

If there is too much kinetic energy, the reaction will be interrupted

27

What happens to a reaction if there is not enough kinetic energy?

If there is not enough kinetic energy, the reaction will not take place

28

the reactant upon which an enzyme works

substrate

29

transition state

combinations of old and new bonds that are formed when reactants collide

30

activation energy

the amount of energy that the reactants must absorb before a chemical reaction will occur