Enzymes And Homostasis

Question 1

What is a Catalyst

Answer 1

They work to speed up chemical reactions by lowering activation energy. They are not used during chemical reaction

Question 2

What is an enzyme

Answer 2

A biological catalyst which is used to speed up reactions faster

Question 3

Non-Catalyzed/No Enzyme

Answer 3

Higher energy of activation need to activate the reactants. Therefore, the rate of reaction is slower

Question 4

Catalyzed/With Enzyme

Answer 4

Lower energy of activation needed to activate the reactants. Therefore, the rate of reaction is much faster

Question 5

Ways or increasing rate of chemical reactions

Answer 5

Temperature, surface area, concentration, and use of catalyst

Question 6

How to identify an enzyme

Answer 6

It will end in “ase” or “in”

Question 7

Cofactor

Answer 7

In order to function properly enzymes require this, which are typically inorganic ions of metals

Question 8

Coenzyme

Answer 8

A organic but non protein substance (eg vitamin) which place a role in forming a functioning enzyme

Question 9

Substrate

Answer 9

A substance which will combine with the active site of an enzyme during a reaction

Question 10

Substrate enzyme complex

Answer 10

a temporary molecule formed when an enzyme comes into perfect contact with its substrate. … The substrate causes a conformational change, or shape change, when the substrate enters the active site.

Question 11

What are enzymes made up of

Answer 11

Protein

Question 12

What is homeostasis

Answer 12

Maintains the internal environment of the body at equilibrium

Question 13

What is the allosteric site

Answer 13

When the product of an enzyme catalyzed reaction binds to it. It caused a change in the shape of the active site and the enzyme becomes temporarily inactive

Question 14

3 ways enzymes can get denatured

Answer 14

Low/high PH, too much heat, and heavy metals

Question 15

Endocrine gland

Answer 15

Secret hormones directly into the blood. Includes hypothalamus, pituitary, thyroid, parathyroid, thymus, adrenal gland, pancreas, ovaries, and testes

Question 16

Exocrine gland

Answer 16

Secret hormones into ducts. Includes hypothalamus and pancreas

Question 17

Thermoreceptors

Answer 17

Detect temperature changes in the body

Question 18

Photoreceptors

Answer 18

Detect light in the body

Question 19

Chemoreceptors

Answer 19

Detect chemical changes in the body

Question 20

Pressoreceptors

Answer 20

Detect changes in blood pressure in the body

Question 21

Hypothalamus

Answer 21

Receptors for regulating body temperature

Question 22

Why may the graph go down

Answer 22

Denatured or inhibition

Question 23

What is enzyme inhibition

Answer 23

Occurs when an active enzyme is prevented from combining with its substrate

Question 24

What is the thyroid gland

Answer 24

Produces a peptide hormone called thyroxin

Question 25

What is thyroxin

Answer 25

It affects all the body cells. It increases rate of cellular respiration and metabolic rate. Iodine is needed to help make this

Question 26

Hypothyroidism

Answer 26

Body is producing too little thyroxin. Symptoms can include lack of energy, weight gain, decrease body temperature, loss of hair. You can also develop a simple goiter

Question 27

Hyperthyroidism

Answer 27

Body is producing too much thyroxin. Symptoms can include hyperactivity, nervousness, irritation and insomnia, and weight loss

Question 28

Activation energy

Answer 28

A barrier of spontaneous chemical reactions.

Question 29

What is the peptide hormone

Answer 29

It binds to specific receptor protein in the plasma membrane

Question 30

What is the steroid hormone

Answer 30

After passing through the receptor membrane and possible not until it passes through the nuclear envelope, it binds to a hormone receptor protein inside nucleus