CA#2 Review

Which of the following correctly orders the organization in plants and animals from least to most complex?

• Organisms – Organ Systems – Organs – Tissues – Cells
• Tissues – Cells – Organs – Organisms – Organ Systems
• Organs – Tissues – Organisms – Cells – Organ Systems
• Cells – Tissues – Organs – Organ Systems – Organisms

Which body system forms a protective barrier between the external and the internal body systems?

• Circulatory system.
• Respiratory system.
• Integumentary system.
• Endocrine system.

Which statement about the cell theory is correct?

• New cells form from old cells that have died.
• Cell organelles are the smallest units of life.
• All cells have the same internal structures.
• All living things are made up of cells.

Cells require a structure that regulates the transfer of material in and out of the cell. This structure is the –

• cell membrane.
• mitochondrion.
• nucleus.
• chloroplast.

Plant cells have a strong, rigid outer layer known as the cell wall. The function of the cell wall is to –

• help the cell maintain its shape under changing water pressure.
• convert energy from sunlight into chemical energy.
• regulate the transfer of material into the cell.
• separate genetic material from the rest of the cell.

The nucleus is a round, double-walled structure often found in the center of both plant and animal cells. Its function is to – 

• purify water.
• store fat.
• generate cytoplasm.
• contain genetic material and control the cell 

• Number 1 is the vacuole
• Number 2 is the mitochondria
• Number 4 is the cytoplasm
• This is an animal cell

Which organelle controls cellular activity comparable to the way the brain controls body activity?

• Cytoplasm.
• Cell membrane.
• Vacuole.
• Nucleus.

Which of the following lists includes cellular structures found in both plan and animal cells?

• Chloroplasts, cell wall, cell membrane, cytoplasm.
• Vacuoles, cell membrane, nucleus, mitochondria.
• Cell membrane, cytoplasm, nucleus, cell wall.
• Chloroplasts, vacuoles, cell wall, cytoplasm.

• F
• G
• H
• J