HOMEOSTASIS

A decrease in the number of pathogens in the body

A direct indication that the white blood cells of the body are functioning would be

Released as heat energy back into the hummingbird's environment

A hummingbird may need to consume up to 50% of its body weight in sugar each day, just to meet its energy needs. Some of this energy is stored and some is used for metabolic activities, but much of the energy is

Phospholipids

A molecule that is a constituent of the inner bilayer of biological membranes, having a polar, hydrophilic head and a nonpolar, hydrophobic tail.

Clot

A rupture to the platelets cause the blood do

Plasma membrane

A selectively-permeable phospholipid bilayer forming the boundary of the cells

Lack of oxygen and build up of waste in the muscles

A student lifted weights after school and found that his muscles started to burn. he couldn't continue to lift the weights after prolonged exercising. This muscle fatigue is most likely due to

Carbon dioxide

A student prepared a test tube containing yeast, glucose, and water. After 24 hours, the test tube was analyzing for the presence of several substances. Which substance would the student expect to find if respiration occurred in the test tube?

Immune system

All the bodily structures involved in producing antibodies

Respiratory system

Brings oxygen into the body. Gets rid of carbon dioxide.

Structures found in singled-celled organisms can act in a manner similar to tissues and organs in multi-cellular organisms.

Contractile vacuoles maintain water balance by pumping excess water out of some single-celled pond organism. in humans, the kidney is chiefly involved in maintaining water balance. These facts best illustrate that...

Osmosis

Diffusion of water through a selectively permeable membrane

Examples of passive transport

Diffusion, osmosis, facilitated diffusion

Respiratory

During gas exchange, the cell membrane of a single called organism has the same function as which organ system in humans

Active transport

Energy-requiring process that moves material across a cell membrane against a concentration difference

Passive transport

High to low concentration

Organelles

Homeostasis is maintained in a single-celled organism by the interaction of

Active transport

Low to high concentration

Lymphatic capillaries

Microscopic, blind-ended tubes located near the surface of the body

Starch indicator

One molecule that will be able to pass through the dialysis tubing is

Active transport

Red blood cells contain a higher concentration of potassium than the surrounding blood plasma does. This higher concentration is maintained by the process

Blood capillaries

Smallest blood vessels

Examples of active transport

Sodium potassium pump, endocytosis, exocytosis

Transport

The absorption and distribution of materials within an organism

The movement of materials from the circulatory system that will eventually enter the lymphatic capillaries.

The blood capillaries moving to the interstitial fluid most likely represent

Active transport

The concentration of potassium is higher in red blood cells than in the surrounding blood plasma. This higher concentration is maintained by the process of

A transport system and other organs

The human body has many cells that are deep inside the body. For this reason, the human body requires

Absorption

The process by which nutrient molecules pass through the wall of the digestive system into the blood

Exchange of gases in leaves

The proper function of specialized plant cells is vital to the survival of the plant, because they regulate the

Excretory system

The series of organs used to get rid of metabolic wastes

Digestive system

The specialized organs that act on nutrients as they are digested and absorbed by an organism

Metabolism

The total of all the chemical reactions that take place in an organism

Provides materials used in cellular respiration

This process is essential to the survival of the ameba because it

Circulatory system

Transports oxygen, waste, nutrients, hormones, heat, etc... around the body

False

True of false: Facilitated diffusion requires an input of energy

False

True of false: Insulin is not made by pancreas

True

True or false: Active transport requires an input of energy

True

True or false: Red blood cells contain hemoglobin, while white blood cells do not

False

True or false: The body doesn't need a transport system to move materials and organs to carry out processes

False

True or false: The process of active transport doesn't require ATP

True

True or false: high temperatures can cause proteins to denature and change shape

True

True or false: nutrients usually move from an area of high concentration in the soil to an area of low concentration in root cells

True

True or false: when the shape of an enzyme's active site is changed, the substrate cannot attach to the active site; it will not "fit"

Moves molecules

What is a characteristic that diffusion and active transport have in common?

The arrangement of phospholipids

What makes the membrane thin and flexible, and limits the substances that can pass into and out of the cell?

Heterotrophic nutrition

When organisms get nutrition by eating organic material (food).

Maintains dynamic equilibrium

When the human body is responding to stress the hormone adrenaline is released. A short time later the body returns to normal. This is an example of how a human

Mitochondria

Where does respiration occur?

The epidermis of leaves

Where is the stoma found?

The arrangement of the hydrophobic and hydrophilic ends of the phospholipids

Which of the following is most involved in providing structure for a plasma membrane; the number of protein channels embedded in the membrane; the types of carbohydrates attached to proteins on the surface; the types of proteins that are attached to the surface of the membrane; or the arrangement of the hydrophobic and hydrophilic ends of the phospholipids?

Hormones produced in one part of the body may act in another part of the body; hormones are carried by blood

Which one of the following statements concerning hormones is true; hormones are produced only in the pituitary gland and are regulated by other glands; hormones produced by endocrine glands travel through ducts to various organs; hormones produced in one part of the body may act in another part of the body; or every cell in an organism produces hormones?

Cellular Respiration

Which process uses the products of photosynthesis as reactants?

Metabolism

Which term below includes the others; growth; excretion; metabolism; or nutrition

Exocytosis and endocytosis

Which transport mechanisms require the formation of a vesicle to transport material into or out of a cell?

Digestive and circulatory

Which two body systems allow humans to carry out the same life process as the ameba?

Interstitial fluid

fluid between cells