Cell Structure and Function Worksheet

Which cell structure is responsible for controlling the entry and exit of substances in both animal and plant cells?

• Cell membrane

• Nucleus

• Vacuole

• Chloroplasts

What is the main function of mitochondria in cells?

• Site of aerobic respiration

• Site of photosynthesis

• Controls the entry and exit of substances

• Contains chromosomes

Why are red blood cells biconcave in shape?

• To maximize efficiency in carrying oxygen

• To store genetic information

• To perform photosynthesis

• To provide structural support

Explain why plant cells, but not animal cells, contain chloroplasts.

• Because plant cells perform photosynthesis

• Because animal cells need more energy

• Because plant cells store genetic information

• Because animal cells have cell walls

A student wants to observe a cell in more detail than a light microscope allows. What should they use, and what is a limitation of this method?

• Use an electron microscope; it can only view dead material

• Use a magnifying glass; it cannot see cells

• Use a telescope; it can only see large objects

• Use a light microscope; it cannot magnify enough

How does the structure of a sperm cell help it perform its function?

• It has a tail to swim to the egg cell

• It contains chloroplasts for energy

• It has a cell wall for support

• It is biconcave to carry oxygen

Describe the relationship between tissues, organs, and organ systems in the organization of living things.

• Tissues form organs, which work together in organ systems

• Organs form tissues, which make up organ systems

• Organ systems form tissues, which make up organs

• Tissues and organs are unrelated

Why are specialised cells considered more efficient than unspecialised cells?

• They are adapted to specific functions

• They are larger in size

• They contain more mitochondria

• They have thicker cell walls

A plant cell is placed in a solution and its vacuole fills up. What effect does this have on the cell?

• It pushes the cytoplasm against the cell wall

• It causes the cell to shrink

• It increases the number of mitochondria

• It makes the cell lose its chloroplasts

Which structures are present in plant cells but not in animal cells?

• Chloroplasts and cell wall

• Nucleus and cytoplasm

• Cell membrane and mitochondria

• Vacuole and cell membrane