Biology Basics Alexandra axcRona

APPRECIATE THAT ALL LIVING ORGANISMS ARE MADE UP OF CELLS

All living things are made up of cells

The cell is the smallest unit of life

BE ABLE TO INTERPRET LIGHT MICROGRAPHS AND SIMPLE ELECTRON MICROGRAPHS OF ANIMAL AND PLANT CELLS

Electron micrograph of cell

Light micrograph of animal cell

Light micrograph of plant cell

Electron micrograph of animal cell

SPECIALIZED CELLS- different types of cells perform different types of function and their structure is related to their function

Leaf palisade cell

guard cell in Science Expand. guard cell. (gärd) One of the paired cells in the epidermis of a plant that control the opening and closing of a stoma of a leaf. When swollen with water, guard cells pull apart from each other, opening the stoma to allow the escape of water vapor and the exchange of gases.

Xylem vessel

Smooth muscle cell - A myocyte (also known as a muscle cell) is the type of cell found in muscle tissue. Myocytes are long, tubular cells that develop from myoblasts to form muscles in a process known as myogenesis. There are various specialized forms of myocytes: cardiac, skeletal, and smooth muscle cells, with various properties.

Nerve cell - Types of Neurons (Nerve Cells) The human body is made up of trillions of cells. Cells of the nervous system, called nerve cells or neurons, are specialized to carry "messages" through an electrochemical process. The human brain has approximately 100 billion neurons.

Definition of osmosis. 1 : movement of a solvent (as water) through a semipermeable membrane (as of a living cell) into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane.

Characteristics of living organisms

Small parts of the cells are called organelles

KNIW THAT CELLS ARE ARRANGED IN GROUPS TO FORM TISSUES

Tissues are groups of cells if the same type

Diffusion. Diffusion is the net passive movement of particles (atoms, ions or molecules) from a region in which they are in higher concentration to regions of lower concentration. It continues until the concentration of substances is uniform throughout.

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