7th Grade Final Exam 22-23

Which structures are common to both plant and animal cells?

• vacuole, chloroplast, nucleus

• cell membrane, nucleus, mitochondrion

• nucleus, cell wall, cell membrane

• mitochondrion, vacuole, cell wall

Which of these is the fundamental unit of life?

• system

• organ

• tissue

• cell

Which set includes kingdoms that contain only heterotrophs?

• Protista, Fungi

• Eubacteria, Animalia

• Plantae, Fungi

• Animalia, Fungi

Which of these can only be found in a plant cell?

• nucleus

• vacuole

• chloroplast

• mitochondrion

Water enters a cell and waste material leaves a cell through the cell membrane. Based on this information, the cell membrane is

• semi-permeable

• transparent

• rigid

• impermeable

Why does water (H2O) cross the cell membrane without help, but sugar (C6H12O6) requires special structures to cross the membrane?

• Sugar molecules are too large to enter by diffusion.

• Sugar molecules are too large to enter by osmosis.

• Water molecules are too small to enter by diffusion.

• Water molecules are too small to enter by osmosis.

Which diagram accurately shows the process of simple diffusion?

• 
• 
• 
• 

What is the correct flow of organization in biological systems?

• tissue→cell→fiber→organ

• cell→fiber→tissue→organ system

• fiber→tissue→organ system→population

• cell→tissue→organ→organ system

The heart is made up of muscle tissues and connective tissues that work together to pump blood to all the parts of the body. Which level of organization best describes the heart?

• cell

• organ

• system

• tissue

Oxygen-rich blood returns from the lungs to the heart. Which two systems are most directly involved in this process?

• excretory and digestive

• circulatory and excretory

• digestive and respiratory

• respiratory and circulatory