Cells and body systems

_____________ is the powerhouse of the cell.

• chloroplast

• cytoplasm

• mitochondria

_________ is the process of all cells, tissue, organs and organ systems working together to keep a stable internal balance.

• white blood cells

• homeostasis

• regulation

What is the main function of the digestive system?

• small intestine sending nutrients to your body

• stomach breaking down food

• your teeth chewing the food

The __________ system recognizes pathogens and the ____________system sends the specialized cells to fight the "invaders".

• respiratory , digestive

• immune, circulatory

• immune, respiratory

The __________system regulates your body temperature.

• respiratory

• digestive

• integumentary

_________system= breathing

• circulatory

• respiratory

• immune

• muscular

We take in oxygen and give off _____ ________. This is called a _____ exchange.

• photosynthesis, gas

• carbon monoxide, liquid

• carbon dioxide, gas

What level of organization is missing?? Cell, tissue, organ system, organism

• organ

• organelle

• mitochondria

Plant and animal cells have mitochondria. Plants also have ________ for energy and to make their own food.

• chloroplast

• muscles

• energy

• lysosomes

Muscles in athletes need more energy, therefore have more ______________.

• chloroplast

• mitochondria

• nuclei