Combined Science 1º Period

What are the 7 characteristics of living organisims?

Movement, respiration, sensitivity, growth, reproduction, excretion, nutrition.

What is movement?

An organisim changing position or place.

What is respiration?

Chemical reactions in cells taking nutrients and breaking them down to release energy.

What is sensitivity?

Detecting and responding to changes in the environment.

What is growth?

A permenent increase in size.

What is reproduction?

Making more of the same kind of organism.

What is excretion?

The removal of waste product.

What is nutrition?

Taking in materials for energy and growth.

Animal Cell Diagram

Nucleus

contains genetic information (DNA), is responsible for reproduction

Mitochondria

where the cell creates energy

Cytoplasm

a jelly-like substance where all the cell reactions take place

Cell Membrane

controls what goes in and out of the cell, e.g oxygen, glucose and waste

Ribosomes

creates protein for the cell in order to create new structures.

Plant Cell Diagram

Chloroplasts

for photosynthesis

Cell Wall

helps the cell keep its rigid state

Vacuoles

used as storage

Bacteria Cell Diagram

Circular DNA

a closed-loop structure of DNA that contains genetic information and can replicate independently.

DNA Plasmids

small, circular pieces of DNA in bacteria that carry extra genes, often giving advantages like antibiotic resistance.

How to calculate magnifictation

image size/actual size

Postively Charged Ions

cations

Negatively Charged Ions

anions