Where is the scapula in relation to the olecranon?

A. Hair

B. Nails

C. Skin

D. Iris

While melanin can be found in nails, it is not produced there. Melanin is the pigment that provides color to skin, hair, and eyes. Although the specific coloring of one's skin, hair, and eyes are genetically determined. environmental factors such as sun exposure can increase melanin production in the skin to help protect it from damage.

A. Monosaccharides

B. Disaccharides

C. Pentasaccharides

D. Polysaccharides

There are four major types of carbohydrates: monosaccharides, disaccharides, oligosaccharides, and polysaccharides. Monosaccharides (mono- means one) are made up of one sugar molecule, while disaccharides (di- means two) are made up of two sugar molecules. Oligosaccharides (oligo- means few) are usually less than a dozen sugar molecules, while polysaccharides (poly-means many) are usually more than a dozen sugar molecules.

Pentasaccharides are not a type of carbohydrate.

A. They change shape when they bind their substrates.

B. They can catalyze reactions in both forward and reverse directions.

C. Their activity is sensitive to changes in temperature.

D. They are always active on more than one kind of substrate.

Enzymes are substrate-specific. Most enzymes catalyze only one biochemical reaction. Their active sites are specific for a certain type of substrate and do not bind to other substrates and catalyze other reactions.

A. Pituitary ,Pancreas

B. Penis,Pons

C. Pancreas ,Penis

D. Prostate, Pancreas

The pituitary and the pancreas are both structures of the endocrine system that produce hormones involved in body regulation, growth reaand development, sexual functioning, and other processes. The penis Is a structure of the reproductive system that responds to hormones, but it does not produce them. The prostate plays a role in converting testosterone (produced in the testicles) into dihydrotestosterone, but does not actively produce hormones. The pons is located in the brain stem and relays nerve signals that coordinate messages between the brain and the body. The pericardium is a structural component of the cardiovascular system.

A. They are involved in the secretion of glucose.

B. They are responsible for storing the fat that is found in adipose tissue

C. They are critical in the digestive breakdown of fat

D. They are the foundational element of muscles

Adipocytes are primarily seen in adipose or fat tissue. Their primary function is the storage of fat Adipocytes play a crucial role in maintaining proper energy balance, storing calories in the form of lipids, and mobilizing energy sources in response to stress. They are not involved in the digestion of fat or the secretion of glucose, nor are they the foundational element of muscles

A. Increasing heart rate when blood pressure is low, Consuming excess calories to gain weight

B. Lifting weights to increase muscle mass

C. Shivering when the body temperature falls

D. Shivering when the body temperature falls, Secreting insulin to decrease blood sugar concentration, Increasing heart rate when blood pressure is low

Homeostatic mechanisms are involuntary actions by organs, glands, tissues and cells to maintain balance within the body. For example, if a person becomes dehydrated, the kidneys will retain fluid by decreasing urine output.

Consuming excess calories and lifting weights are not involuntary actions, nor do they maintain the body in its baseline state. Rather, they are actions specifically taken to move the body away from its baseline.

A. Purine: Adenine

B. Purine: Thymine

C. Pyrimidine: Uracil

D. Pyrimidine: Cytosine

There are two types of nitrogenous bases: purine and pyrimidine bases. Purine bases have two rings in their structure and consist of adenine and guanine. Pyrimidine bases only have one ring in their structure and consist of thymine and cytosine (DNA) and uracil and cytosine (RNA). Therefore, the correct answer is B since thymine is a pyrimidine.

A. Neutrons

B. Transitory electrons

C. Valence electrons

D. Electrical charges

An ionic bond forms when one atom donates an electron from its outer shell, called a valence electron, to another atom to form two oppositely charged atoms.

A. Releasing compressed gas to make a bottle-rocket launch

B. Adding water to clay to make slip

C. Crystalizing honey to make candy

D. Including baking soda in a recipe to make it less sour

A chemical change involves a chemical reaction and new substances are produced. When baking soda is added to something sour (acidic) it neutralizes the acid and forms new molecules, in this case carbon dioxide and water. A physical change does not produce new substances. Phase changes such as evaporation and sublimation are physical changes. Changing the ratio of ingredients in a mixture, like adding more water to clay, does not change it chemically, but it can change some of the mixture's physical properties.

A. Fibrous

B. Membrane

C. Globular

D. Unsaturated

There are three types of proteins: fibrous, membrane, and globular. Fibrous or structural proteins consist of collagen, elastin, and keratin. Membrane proteins are interactive and anchored to a membrane. Globular proteins consist of functional proteins like enzymes, hemoglobin, and insulin.

Therefore unsaturated is the correct answer.