Forces
What type of force is magnetic force?
Non-contact force
What is the most important organelle within a cell?
Nucleus
What is a tissue?
A group of similar cells
What is the smallest unit of life?
Cell
Who was the first discoverer of force in modern physics?
Issac Newton
What is the unit of force?
Newton (N)
Which cell part is most directly responsible for controlling what enters and leaves the cell?
Cell membrane
Which tissue helps the heart pump blood?
Muscle tissue
What is an organ?
A structure made of different tissues with a specific function
Why are stem cells important?
Can turn into different cell types
Equal forces result in what?
Equilibrium
What happens in the cytoplasm?
Chemical reactions
Which tissue helps protect the heart?
Fat tissue
Which plant organ makes food by photosynthesis?
Who first observed cells in 1665?
Robert Hooke
What is the gravity of a 34kg object on Earth?
340 N
The most definitive, single structure to tell plant and animal cells apart is
Cell wall
Which plant tissue absorbs water from the soil?
Root hair tissue
Which organs are part of the plant water transport system?
Roots, stem, and leaves
What is the name of cells that grow and divide uncontrollably?
Cancer cells
What shape helps reduce resistance from air or water?
Streamlined shape
Name three cell structures that are found predominantly in plant cells
Cell wall, chloroplasts, and large central vacuole
What is the function of xylem tissue in plants?
Carries water
Name five human organ systems
Cardiovascular, digestive, endocrine, immune, integumentary, muscular, nervous, reproductive, respiratory, skeletal, and urinary systems
If two objects fall at the same time, one is heavier than the other, which object will hit the ground first?
Both