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31 Cards in this Set

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What is a unicellular cell?

Having a single cell

what is diffusion? And how does it work?

when liquid moves in air. like when celery is out for to long which loses water. Once placed in water soon it regains its liquid. Movement of particles in liquids and gases from an area of higher contrentration to an area of lower contertration.

what do living things need?

-energy


-respond and adapt to their environment


-reproduce


-grow


-waste

what is a tissue and what is it made of?

a tissue is made of cells.

what makes photosynthesis possible?

water and sunlight.

how does the cell membrane work?

-surrounds and protects contents of cell


-controls movent of substances in and out of cell

What is an organ made of?

An organ is made up of tissues.

The various body systems?

-Exceratory System


-Circulatory System


-Nervous System


-Respiratory System


-Digestive System

What are the waste products of living things?

-urine


-feces


-carbon dioxide




(plants)


-oxgyen

What is an organelle?

The structure inside the cell.

The organelle in plant tissue?

-Cell membrane


-Cytoplasm


-Nucleus


-Vacuoles


-Cell wall


-Chloroplasts

The organelle in animal tissue?

-Cell membrane -Cytoplasm -Nucleus-Vacuoles

White bloods cells vs. Red blood cells?

-white blood cells protect you




-red blood cells give energy

Cell theory?

-all living things are composed of one or more cells


-a cell is the basic unit of life


-cells come from existing cells

Organization of cells?

cells->tissues->organs->systems->organism

Order of how your digestive system works?

Food goes down your mouth through the esophagus, into the stomach, processed into the small intestines through the large intestines and out the anus.

Who discovered the microscope?

Anton van Leeuwenhoek

Ex. You have a cold.

when you breath/cough your lungs throb and hurt

What are the components of blood?

plasma, red blood cells, white blood cells, and platelets.

What is heart rate?

A persons heart beat per minute.

How is a heart rate affected?

-Sick


-Stress


-excercise


-medicine


-body temperature



What is Xyhlem?

the tissue that conducts water and minerals abosrbed by the root cells to every cell in the plant.

What is Phloem tissue?

the tissue that transports sugar manufactured in the leaves to the rest of the plant.

How does the heart work?

Blood is pumped from the right atrium down into the right ventricle and from the left atrium down into the left ventricle. In the second stage, the lower chambers contract to push this blood out of the heart

What are the hearts components?

Left atrium, left ventricle, right atrium, right ventricle, and the Aorta.

The effects of a high fat diet on the arteries?

-chest pain


-pain in leg, arm and anywhere else that has a blocked artery


-shortness of breath


-fatigue


-confusion


-muscle weakness

What is osmosis?

Diffusion of a solvent, through a selectively permable membrane.

What is enzyme?

Enzyme is 'acid' breaking dowb food particles.

What is the epiglottis?

The flap that covers the wind pipe.

Mechanical digestion?

Physically breaks down food into useable pieces.

Chemical digestion ?

breaks down food into small pieces using enzyme.