Ati - Science

Inflammation, production of interferon, and ingestion of pathogens by phagocytes are nonspecific cellular responses by which of the following?

The internal aspect of the innate immune system

The ventricles will not contract

Which will occur in the cardiac cycle if the impulse triggered at the sinoatrial node never reaches the Purkinje fibers of the heart.

Pulmonary Artery - Identified by the letter “K”

The major blood vessel that carries deoxygenated blood from the heart's right ventricle to the lungs for oxygenation.

Small Intestine

responsible for the majority of the chemical digestion and absorption of nutrients in the digestive system

Vitamin D

Produced by the skin when a cholesterol-based precursor is modified by the presence of ultraviolet radiationand is essential for calcium absorption and bone health.

Osteoclasts

Bone cells that perform mineral resorption & break down bone tissue, releasing minerals into the blood.

Medullary cavity

The central cavity of a long bone, containing bone YELLOW bone marrow and blood vessels, which plays a critical role in the production of blood cells.

Gametes

Leaves the body via the vas deferens

Gonads

Organs that produce gametes, such as (SPERM) testes in males and (EGGS) ovaries in females.

Saltatory Conduction

A method of nerve impulse transmission where action potentials jump between node to node in an axon. - Allows for faster conduction along myelinated axons.

Mitosis

New body cells that replace damaged body cellsthrough a process of cell division that results in two identical daughter cells.

Respiration

Respiration is an oxidative, degradative pathway that correctly describes a major metabolic pathway.

Metabolic Pathway

interconnected series of chemical reactions cells use to survive.They convert nutrients into energy and building blocks for growth and maintenance: ie. Glycolysis, Krebs cycle, and oxidative phosphorylation.

An atom lost an electron becomes_______ in charge and is called a ______.

positively charged; cation

What are characteristics of a graph displaying the physical states of a substance under varying temperature and pressure?

Phase Diagram-Having temp and pressure as its axes.The graph shows phase transitions (solid, liquid, gas)

Protons

the atomic number is determined by the number of protons in each atom

Which of the following particles will differ for each isotope of the same element?

Neutrons in its nucleus

Mass of an object is -

An extensive property and physical property

The Bonds holding together nonpolar covalent molecules

are formed by equal sharing of electrons between atoms and result in a balanced distribution of charges throughout the molecule.

Milli

The appropriate prefix to measure the amount of space taken up by a pennywhich is approximately 1.9 millimeters in diameter.

SI Units

SI Units are part of a standard system of measurement that is used in science

Link between damaged villi and malnutrition

is that damaged villi reduce nutrient absorption in the intestine, leading to deficiencies and malnutrition.

Memory Cells

Feature of the adaptive immune system which decreases the amount of time it takes for the body to respond to particular antigens.

Contraction occurs when the thin _____ filaments slide past the thicker ____ filaments, causing the sarcomere unit to shorten or contract

Actin, myosin

The endocrine system is a collection of ductless glands that produce what response?

A slowly initiating but prolonged response on other body system- Hormonal responses that regulate various bodily functions.

A gland that has an exocrine function and aids in the regulation of blood glucose.

Pancreas

Dermis

The middle layer of the skin that is made of connective tissue.

Connective tissue

Serves to fasten and support body parts- A type of tissue that supports, binds together, and protects other tissues and organs. It is characterized by a matrix that contains different types of cells and fibers.

Polysaccharide

A carbohydrate that is made of many sugar molecules - linked together, serving as a long-term energy storage form in organisms.

Dehydration Reaction

A chemical reaction between two molecules in which a water molecule is released and a covalent bond forms

Codon

A triplet of nitrogenous bases that codes for an amino acid - A sequence of three nucleotides in mRNA that specifies an amino acid during protein synthesis.

Inheritance

Transmission of characteristics to offspring-The process where genetic information is passed from parents to offspring, determining traits and characteristics.

Nucleus

where genetic information describing the characteristics of an organism is found

The function of Ribosomes

They facilitate protein synthesis-is to synthesize proteins by translating messenger RNA (mRNA) sequences into amino acid chains during protein synthesis.

Atomic mass has a decimal because it is the average ____ of all the isotopes for a particular element. The atomic number of an element is the number of ____ in its nucleus

mass number, protons

They are located in the nucleus of an atom

Protons