Hierarchy of Matter
What type of structure is formed by a group of similar cells that work together to perform a specific function?
a tissue
What makes up cells?
atoms and molecules
The white blood cell attacks bacterial cells that could cause a disease. What system includes white blood cells?
Immune System
Which two body systems eliminate waste products from the body?
A-respiratory and nervous
B-excretory and respiratory
C-reproductive and respiratory
D-respiratory and musculoskeletal
B- excretory and respiratory
How is a pure substance different from a mixture?
Pure substances cannot be physically separated and mixtures can.
Which of the following BEST represents the levels of organization that form the brain?
A-organism, organ system, organ, molecules, atoms
B-tissue, cells, atoms, organ, organ system
C-atoms, molecules, cells, tissue, organ
D-molecules, organ, tissue, cells, organism
What makes up tissue?
same types of cells
What is the primary function of the digestive system?
To provide nutrients to the body
Which system transports oxygen to cells in the body?
circulatory
Which of the following are pure substances?
Elements
Molecules
Compounds
Solutions
Heterogeneous Mixtures
elements, molecules, and compounds are all pure substances
What level of organization BEST describes the large and small intestines?
organs
Neurons are cells that make up what kind of tissue?
nerves
After a long run, your skeletal muscles need more oxygen. Which organ systems meet this need MOST rapidly?
circulatory
During a routine physical exam, the doctor checked the child's auto reflexes. Which body system was the doctor checking?
The nervous system
How are elements ordered on a periodic table? (what does the 1-118 numbers mean?)
They are ordered by atomic number, which tells the number of protons in one atom of that element.
What represents the highest level of organization in any living thing?
organism
What is the smallest unit of matter that is living?
Cells
What are three main functions of the skeletal system?
Structure, support, protect vital organs, produce blood cells, movement
Which system responds to internal and external stimuli, coordinating each of the other systems to maintain homeostasis?
The nervous system
Elements on the periodic table are grouped in columns and rows. What do we call the columns? What do we call the rows? Circle the one in which elements will be chemically similar.
Periods- rows
Groups- Columns
What is the hierarchy of life from largest to smallest? Underline the one that is most complex.
organisms, organ system, organ, tissue, cells, molecules, atoms
What do you call the parts within a cell that have specialized functions such as mitochondria?
Organelles
What are TWO main functions of the respiratory system?
1. Take in Oxygen
2. Eliminate Carbon Dioxide gas
The bladder, kidney, lungs, and skin are organs that work together to maintain homeostasis. What function do all these organs have in common?
eliminate waste products
What can you predict from an element's location in the Periodic table?
a-chemical symbol
b-chemical name
c-its properties
d-when it was discovered
C- its properties (based on family and group it is part of)