Enzymes

Question 1

_ glands secrete hormones directly into the blood

Answer 1

Endocrine

Question 2

Glands secrete hormones into ducts

Answer 2

Exocrine

Question 3

The protein portion of an enzyme is called the

Answer 3

Apoenzyme

Question 4

The model that considers the substrate, an active site to be a perfect fit for each other

Answer 4

Lock and key

Question 5

This enlargement of the throat can occur due to either hypothyroidism or hyper thyroidism

Answer 5

Goiter

Question 6

Maintaining the internal environment of the body at equilibrium

Answer 6

Homeostasis

Question 7

Insulin is an example of a blank hormone

Answer 7

Peptide

Question 8

Every enzyme has an optimal blank at which it will work in the body. The exact value of this will depend upon where in the body that enzyme is functioning, values to far above or below optimal result in the denaturation of the enzyme.

Answer 8

Ph

Question 9

A factor affecting the rate of a chemical reaction

Answer 9

Temperature, surface area, concentration, or use of catalyst

Question 10

Organic but non-protein coenzyme are often derived from these substances

Answer 10

Vitamins

Question 11

In order to cool, your body, blood vessels near the surface of the skin will blank

Answer 11

Dilate

Question 12

Many blank are inhibitors that permanently bind to the active site of enzymes rendering them inactive

Answer 12

Poisons

Question 13

A blank occurs to correct the situation when a receptor detects that conditions in the body or out of the normal range

Answer 13

Adaptive response

Question 14

All enzymes names end in the suffix

Answer 14

Ase or in

Question 15

Enzyme activity can be greatly reduced when temperatures get to blank the situation is irreversible

Answer 15

Hot

Question 16

Components of the body which detect light

Answer 16

Photoreceptors

Question 17

Increasing this factor will increase the rate of a chemical reaction

Answer 17

Surface area

Question 18

All of the body sensory receptors are connected to the blank system

Answer 18

Nervous

Question 19

The portion of an enzyme that binds with the substrate

Answer 19

Active site

Question 20

Call factors can belong to this group of substances

Answer 20

Metals

Question 21

Components of the body which detect chemical changes

Answer 21

Chemoreceptors

Question 22

A blank increases the rate of a chemical reaction by lowering the activation energy

Answer 22

Catalyst

Question 23

When the product of an enzyme, catalyzed reaction binds to the blank site on the enzyme, it causes a change to the shape of the active site and the enzyme becomes temporary inactive

Answer 23

Alosteric

Question 24

This word is what happens to a protein when its shape is changed by being exposed to heat or certain chemicals

Answer 24

Denature

Question 25

Blank like mercury, and lead can cause the denaturation of enzymes

Answer 25

Heavy metals

Question 26

Blank or chemical messengers, which help cells communicate with each other

Answer 26

Hormones

Question 27

A organic, but non-proteins, substance (example, vitamin) which place a role in forming a functioning enzyme

Answer 27

Coenzyme

Question 28

This word refers to the combination of all the chemical reactions that are occurring within an organism

Answer 28

Metabolism

Question 29

Components of the body which detect changes in blood pressure

Answer 29

Baro receptors

Question 30

Negative feedback, blank occurs when the increase in the product of an enzyme catalyzed reaction causes the rate of that reaction to slow by inhibiting the associated enzyme

Answer 30

Inhibition

Question 31

The idea that the active site modifies its shape as it forms the enzyme substrate complex

Answer 31

Induced fit

Question 32

The receptors for regulating body temperatures are located in this part of the brain

Answer 32

Hypothalamis

Question 33

The enzyme maltase decomposes the sugar

Answer 33

Maltose

Question 34

The blank energy is the amount of energy that is required to get a chemical reaction started

Answer 34

Activation

Question 35

A solution with a higher blank, will provide a fast reaction rate than a solution with one that is lower

Answer 35

Concentration

Question 36

Blanks feedback systems are very rare in humans, but are present in situations like childbirth and breastfeeding

Answer 36

Positive

Question 37

Enzyme activity can be reduced when temperatures become to blank however, the situation can be reversed

Answer 37

Cold

Question 38

This enzyme catalyses the decomposition of hydrogen peroxide

Answer 38

Catalase

Question 39

This element is required for the production of thyroxin

Answer 39

Iodine

Question 40

If your body temperature drops below normal, your brain may direct your body to start involuntarily muscle contractions, which make you start to blank

Answer 40

Shiver

Question 41

Blood pressure blood pH and blood glucose levels are all part of blank feedback systems, where the correction of the level, which is out of range leads to a slowing, or seizing of the corrective measure

Answer 41

Negative

Question 42

In order to function properly enzymes require an additional substance called a blank, which are typically inorganic ions made of metals

Answer 42

Co factor

Question 43

Components of the body which detect temperature changes

Answer 43

Thermo receptors

Question 44

The term metabolic blank refers to a sequence of enzyme, catalyze chemical reactions, which are all linked to each other

Answer 44

Pathway

Question 45

Metabolic rate is controlled by the hormone thyroxine, which is produced by the blank gland

Answer 45

Thyroid

Question 46

A word used to describe a substance which will combine with the active site of an enzyme during a reaction

Answer 46

Substrate

Question 47

Enzymes are said to be blank, because each enzyme catalyzes only one type of reaction

Answer 47

Specific

Question 48

In an enzyme, catalyzed reaction reaction rate will continue to increase with the addition of more substrate until all enzyme active sites are blank. The addition of more substrate beyond this point, will result in no increase in reaction rate.

Answer 48

Saturated

Question 49

Lipid based hormones are composed of blank

Answer 49

Steroids

Question 50

A biological catalyst is called a blank

Answer 50

Enzyme

Question 51

What is involved in protein synthesis? What organelle?

Answer 51

Ribosomes

Question 52

Three causes of denaturation

Answer 52

Ph, heat, heavy metals or chemicals

Question 53

Body temp

Answer 53

37

Question 54

Element for thyroxine

Answer 54

Iodine

Question 55

Competitive inhibitor sticks to an

Answer 55

Active site

Question 56

Non competitive inhibitor sticks to an

Answer 56

Alosteric site

Question 57

Poisons are permanent

Answer 57

Inhibitors

Question 58

Area of brain involved in homeostasis

Answer 58

Hypothalamus

Question 59

Peptide hormones bind to

Answer 59

Surface

Question 60

Steroid hormones bind to

Answer 60

Nucleus