Healing Process Quiz

What is the main reason cells need to grow and divide after an injury?

• To create energy for the body
• To repair damaged tissues
• To make more nerve signals
• To break down waste materials

Select all the ways the immune system contributes to healing

• white blood cells fight infection at the wound site
• platelets help form scabs
• the nervous system signals for more oxygen to the injury site
• the immune system removes dead or damaged cells

Which of the following are true about bacteria and yeast? (Select all that apply)

• Bacteria and yeast are both single-celled organisms.
• Yeast belong to the archaea domain.
• Some bacteria help humans by aiding digestion and protecting against infections.
• Both bacteria and yeast reproduce by binary fission.

Which process allows oxygen and carbon dioxide to move freely across a cell membrane?

• osmosis
• diffusion
• active transport
• endocytosis

Which of the following BEST describes how nutrients reach cells to help them grow and repair?

• They are absorbed directly through the skin
• The circulatory system transports them through the blood
• They are stored in bones until needed
• Cells make all the nutrients they need

Which cell process is MOST important for healing a wound?

• Cellular respiration
• Mitosis - Cell division
• Photosynthesis
• Fermentation

During healing, why does the body increase blood flow to an injured area?

• To carry away broken cell parts
• To transport oxygen and nutrients needed for cell repair
• To prevent the body from overheating
• To reduce the size of the injury

What happens to the number of cells at an injury site during the healing process?

• The number decreases as damaged cells dissolve
• The number stays the same throughout healing
• The number increases as new cells are produced
• The number remains high even after healing is complete

How do different body systems work together to repair an injury? Choose all that apply

• The circulatory system delivers oxygen and nutrients
• The digestive system provides nutrients from food
• The skeletal system replaces damaged tissue with bone
• The nervous system coordinates pain signals and healing responses

Jasmine accidentally cuts her finger while preparing dinner. Over the next few days, she notices the cut becoming red and swollen before eventually healing. Which of the following BEST explains why this happens?

• The redness and swelling mean her cells are dying
• The body increases blood flow to bring oxygen and nutrients for healing
• The nervous system is shutting down at the injury site
• The cells around the injury are shrinking to reduce swelling