Homeostasis and Biochemistry

Surface Receptor Protein

A molecule found on the cell membrane that the immune system that recognizes as either part of the body or an outside invader. Antigens are the molecules on the membrane of pathogens.

vaccination

An injection that produces a mild form of a disease in order to help build up an immunity to it.

The maintenance of homeostasis in the body is most directly related to ?

Cellular communication

Enzyme Temperature

Changing the temperature changes the rate of the enzyme - catalysed reaction.

Enzyme pH

Each enzyme has a particular pH that it works optimally at Is pH it's either too high/low from optimal levels, enzyme can denature

Organisms living in a bog environment must be able to tolerate nitrogen-poor, acidic conditions. Bog plants such as the Venus flytrap and sun-dew are able to obtain their nitrogen by attraction and consuming insects. These plants produce chemicals that break down the insects into usable compounds. The chemicals present in the plants that break down the insects are most likely?

Enzymes

Which process illustrates a feedback mechanism in plants?

Guard cells change the size of leaf openings regulation the exchange of gases.

When a preson does strenuous exercise, small blood vessels ( capillaries ) near the surface of the skin increase in diameter: This change allows the body to be cooled. These statements best illustrate

Homeostasis

The function of a specific enzyme is most directly influenced by its ?

Physical Shape

The function of a specific enzyme is most directly influenced by its

Physical shape

Organisms living in a bog environment must be able to tolerate nitrogen-poor, acidic conditions. Bog plants such as the Venus flytrap and sun-dew are able to obtain their nitrogen by attraction and consuming insects. These plants produce chemicals that break down the insects into usable compounds. Which compounds present in insects are composed of the amino acids the provide the Venus flytrap and sun-dew with much of their nitrogen?

Proteins

After a hormone enters the bloodstream, it is transported throughout the body, but the hormone affects only certain cells. The reason only certain cells are affected is that the membranes of these cells have specific

Receptors

In order for the human body to maintain homeostasis, the breakdown of glucose to release energy must be followed by the ?

Removal of wastes

Most of the starch stored in the cells of a potato is composed of molecules that originally entered these cells as

Simple sugars

Whats one feedback mechanism in the human body?

The maintenance of blood sugar levels.

Which statement describes a similarity between all enzymes, antibodies, and hormones?

Their chemical structure is critical to their ability to function

Describe how a plant regulates water loss through a feedback mechanism that involves guard cells

When guard cells close the stomata less water evaporates out of the leaves.

Experiments revealed the following information about a certain molecule: -It can be broken down into amino acids. -It can break down proteins into amino acids. -It is found in high concentrations in the small intestine of humans This molecule is most likely?

an enzyme

Fat (lipids)

are broken down to Fatty Acids & Glycerol

Diseases

are caused pathogens (virus, bacterium, and fungus)

Carbohydrates and Starches are

broken down into SIMPLE SUGARS

Proteins are

broken sown into amino acids

Other than death, one specific result if homeostasis fails in the human body ?

diabetes, heat stroke, hypothermia, disease/get sick.

Enzymes shape

enzymes work based on their shape (like all proteins) -shape can be changed (denatured by things like: temp, pH, other compounds/chemicals -act by lowering activation energies

The interaction between guard cells and a leaf opening would NOT be involved in ?

heterotrophic nutrition

dynamic equilibrium

is a steady state-balance- : HOMEOSTASIS

Innumity

is our body's ability to fight disease.

Respiration

is the process used by ALL organisms to produce energy by using oxygen to burn sugar in order to release energy in the form (ATP) organelle used in this process: Mitochondria

Enzymes

special proteins that affect the rate of chemical reactions. Enzymes are catalysts used in digestion and synthesis.

Antibodies are

specialized proteins that attach to pathogens and disable them or mark them for destruction by immune cells

Our Skin and Circulation Systems are

the body's primary defense against disease, causing pathogens (Immunity) via White Blood Cells

Excretion

the process by which wastes are removed from the body