K

Question 1

Keratan

Answer 1

A glycosaminoglycan found in the extracellular

matrix.

Question 2

Keratin

Answer 2

Cytoskeletal protein that forms one type of intermediate filament; common in hair, nails, and feathers.

Question 3

Keratinocytes

Answer 3

Epithelial cells of outermost layer of skin that produce keratin.

Question 4

Ketogenesis

Answer 4

The production of ketone bodies.

Question 5

Ketolysis

Answer 5

The breakdown of ketone bodies to form acetyl CoA.

Question 6

Ketone Bodies

Answer 6

Substances such as acetone, acetoacetate, and hydroxybutyrate and other products derived from acetyl CoA; produced by fatty acid oxidation under food deprivation conditions.

Question 7

Kidney

Answer 7

An organ responsible for producing urine, thereby regulating the levels of nitrogenous wastes, extracellular fluid solute properties, and osmolarity.

Question 8

Kinesin

see also dynein

Answer 8

A motor protein associated with microtubules.

Question 9

Kinetic Energy

Answer 9

The energy associated with movement.

Question 10

Kinocilium

Answer 10

The long cilium of a mammalian hair cell (involved in the detection of sound).

Question 11

Kleiber’s Law

Answer 11

The observation that metabolic rate is related to body mass to the exponent 0.75.

Question 12

Knockout

Answer 12

An animal that has been subjected to genetic manipulation leading to the inability to express a native gene.

Question 13

K-type Strategy

see also r-type strategy

Answer 13

A life history strategy whereby in animal produces few offspring and invests heavily in their development.