Why don’t we learn these… Useful terms from Science Unit A? No reason not to.

Basic unit of structure and function of all living things?

cell

Thin covering that encloses a cell and keeps its parts together?

cell membrane

Organelle that controls all of a cell’s activities?

nucleus (of a cell)

Jellylike substance containing chemicals that help keep a cell functioning?

cytoplasm

Process by which many materials move in and out of cells?

diffusion

Diffusion of water and dissolved materials through a cell membrane?

osmosis

Cells that work together to perform a specific function?

tissue

Tissues that work together to perform a specific function?

organ

Organs that work together to perform a function?

system

Smallest blood vessels?

capillaries

Tiny air sacs, located at both ends of the lungs, through which gases are exchanged with the blood?

alveoli

Tiny tubes sticking into the small intestine that absorb nutrients into the blood?

villi

Tubes inside the kidneys where urea and water diffuse from the blood?

nephrons

Connective tissue that produces red and white blood cells?

bone marrow

Places where bones meet and are attached to each other and to muscles?

joints

Tough bands of connective tissue that attach muscles to bones?

tendons

Bands of connective tissue that hold a skeleton together?

ligaments

Specialized cell that can receive information and transmit it to other cells?

neuron

Nerve cells that detect conditions in the body’s environment?

receptors

Grouping of things by using a set of rules?

classification

Largest group into which living things are classified?

kingdom

Kingdom of organisms found with petroleum?

moneran

Kingdom of organisms that have only one cell and a nucleus?

protist

Living things such as mushrooms that look like plants, but cannot make their own food?

fungi

Second smallest grouping used in classification?

genus

Smallest grouping used in classification?

species

Animal with a backbone?

vertebrates

Animal that has hair and produces milk for its young?

mammals

Animal that has dry, scaly skin?

reptiles

Animal with moist skin and no scales?

amphibians

Vertebrate that lives in water?

fish

Vertebrate with feathers?

birds

Animal without a backbone?

invertebrates

Plant that has tubes for transporting food and water?

vascular plants

Plant that does not have tubes for transporting food and water?

nonvascular plants

Tubes that transport water and minerals in vascular plants?

xylem

Tubes that transport food in vascular plants?

phloem

Pigment, or coloring matter, that helps plants use light energy to produce sugars?

chlorophyll

Cycle in which nitrogen gas is changed into forms of nitrogen that plants can use?

nitrogen cycle

Process by which carbon and oxygen cycle among plants, animals and the physical environment?

carbon dioxide-oxygen cycle

Single reproductive cell that grows into a new plant?

spore

Plant with unprotected seeds; conifers or cone-bearing plants?

gymnosperm

Flower structures that contain the male reproductive cells?

pollen

A flowering plant?

angiosperm

Seeds of certain plants that are used for food?

grain

Any material that can be separated into threads?

fiber

Outer layer of cells of a leaf?

epidermis

Layer of cells in a leaf where most photosynthesis occurs?

palisade layer

Process by which cells release energy from food in order to carry on life processes?

cellular respiration

Plant’s response to a stimulus?

tropism

Plant’s response to gravity?

gravitropism

Joining of a male reproductive cell with a female reproductive cell?

fertilization

Male parts of a flower?

stamen

Female part of a flower?

pistil

Process by which plants make food?

photosynthesis

Plant’s response to light?

phototropism

Form of asexual reproduction in plants; reproduction without seeds?

vegetative propagation

Part of a flower that contains eggs?

ovary

Tiny plant inside a seed?

embryo

Structures where food is stored in seeds?

cotyledons

To sprout?

germinate

Plant stage when a germinated seed begins growing and making its own food?

seeding

Form of artificial reproduction that can produce desirable characteristics in woody plants?

grafting

Process of growing plants artificially in laboratories?

tissue culture

Only 25 more words to go!