Vital Functions
What are the 3 vital functions?
Nutrition, Interaction, and Reproduction
What is a cell?
The smallest basic unit of life.
cells > tissue > organs > system > organism
What is the cell wall? Which cells have the cell wall?
Hard structure around the cell membrane and protects it. ONLY in plant cells.
What is the digestive system?
What is nutrition?
What does the nucleus do?
Creates material necessary to reproduce cells and assigns activities of the cell.
What is an organism with only one cell?
What are chloroplasts? Which cells are they in?
Chloroplasts are green organelles that capture light and produce nutrients. ONLY in plant cells.
What is the respiratory system?
The respiratory system has the trachea and lungs. It takes oxygen in and expels carbon dioxide.
What is interaction?
The ability to sense changes in the environment and react to them.
What 2 things does a plant cell have that an animal cell does not have?
Chloroplast and cell wall.
What is an organism with two or more cells?
Multicellular organism.
What is cytoplasma?
A viscous liquid, which organelles float in.
What is the circulatory system?
The circulatory system has the heart and blood vessels. It carries blood with oxygen and nutrients to the body. It collects waste and carbon dioxide.
What is reproduction?
Enables living things to produce offspring similar to themselves.
What is the cell membrane?
The outside part of the cell, which separates the nucleus form the environment.
Name 3 things plants do. Name 3 things animals do.
PLANTS: capture sunlight to make food, react to their surroundings, reproduce through pollination.
ANIMALS: eat living things, reacts to changes around and inside their bodies, create offspring (baby animals) through reproduction.
Describe muscle cells.
What is the excretory system?
The excretory system has the kidney and bladder. It cleans the blood of waste products.
Tell me an example of each vital function for plants and animals.
Nutrition, interaction, reproduction
PLANTS: Nutrition- make food through sunlight, Interaction- sunflower turning towards the sun, Reproduction- pollination
ANIMALS: Nutrition- eats other living things, Interaction- a cat running from a barking dog, Reproduction- baby animals
What do organelles do?
Are human beings viviparous? What does this word mean?
Yes. It means they are born from a mother's womb.
What shape are epithelial cells? What do they do?
What shape are nerve cells? What do they do.
Epithelial cells are flat and line parts of the body, like the skin. They insult and protect the body.
Nerve cells are star-shaped with "arms." They establish connections and transmit information to the body.
What is the nervous system?
What is the musculoskeletal system?
The nervous system gathers information from sense organs (eyes, skin, ears) and prepares the order.
The musculoskeletal system receives the order and responds with movement.