systems

Question 1

what is a system

Answer 1

a group of organs that work together to perform a function

Question 2

what makes the cell an open system

Answer 2

it exchanges matter and energy

Question 3

cell membranes

Answer 3

all cells have them
it separates the cell interior from the environment
prevents unwanted materials
permeable
made up of lipids
the proteins act as passage ways and communicate info from outside the cell to the nucleus

Question 4

vacuoles

Answer 4

in animal cells they store food, water and minerals
in plant cells they are larger in size and help regulate the amount of water

Question 5

mitochondria

Answer 5

chemical reactions convert sugar to ATP which is usable form of energy for cells
provides energy for the cell though the process of cellular respiration

Question 6

chloroplasts

Answer 6

found in green plants and algae. contains a pigment call chlorophyll which captures sunlight

Question 7

what organelle is responsible for nutrients gas exchange and waste

Answer 7

cell membrane

Question 8

what are trace elements

Answer 8

minerals in living tissue in small amount

Question 9

3 similarities in chemical composition of plant and animal cells

Answer 9

both have a mitochondria

both have cytoplasm

both have ribosomes

Question 10

3 differences in the chemical composition of plant and animal cells

Answer 10

only plant cells have a chloroplast

animal cells lack a cell wall

a plant cell is larger then an animal cell