Life Processes

These flashcards cover key concepts about life processes, nutrition, respiration, transportation, and excretion in living organisms.

Life processes require __________ to maintain order within living organisms.

energy from outside sources

Photosynthesis is the process by which __________ converts carbon dioxide and water into carbohydrates.

autotrophs or green plants

The process of acquiring oxygen and breaking down food for cellular needs is called __________.

respiration

In multicellular organisms, the need for a transportation system arises because not all cells are in __________ with the environment.

direct contact

Waste products that need to be removed from the body are expelled through a process called __________.

excretion

Heterotrophic nutrition involves the intake of __________ material prepared by other organisms.

complex

The function of __________ is to secrete digestive enzymes that break down food in the stomach.

gastric glands

The __________ are the transport vessels that carry oxygenated blood away from the heart.

arteries

Excretion in humans is primarily performed by __________.

the kidneys

The structure in the kidneys that filters blood and forms urine is called __________.

nephrons

Photosynthesis occurs in the __________ of plant cells, where chlorophyll is located.

chloroplasts

The energy currency of the cell that drives various life processes is __________.

ATP

The xylem in plants is responsible for the transport of __________ and minerals from the roots to the leaves.

water

In the respiratory system, the __________ are the structures where gas exchange occurs.

alveoli

The __________ system in humans includes the heart, blood, and blood vessels.

circulatory

Translocation in plants refers to the movement of __________ products from leaves to other parts of the plant.

soluble

During anaerobic respiration, pyruvate may be converted into __________ and carbon dioxide in yeast.

ethanol

Guard cells control the opening and closing of __________ on the leaves, facilitating gas exchange.

stomata

Excess water is lost from plants primarily through the process of __________.

transpiration