Cell Biology and Human Respiratory System Crossword Puzzle

QUESTIONS LIST:

• cell: the smallest unit of life.
• nucleus: controls the cell and holds dna.
• cytoplasm: jelly-like substance where chemical reactions happen.
• membrane: the thin layer that controls what goes in and out of the cell.
• mitochondria: where respiration takes place to release energy.
• ribosome: tiny structure that makes proteins.
• chloroplast: where photosynthesis happens in plant cells.
• tissue: a group of similar cells working together.
• organ: a body part made of different tissues with a specific job.
• organ system: a group of organs working together.
• microscope: tool used to see very small things like cells.
• magnification: how much larger an image looks under a microscope.
• lungs: organs where gas exchange happens.
• trachea: windpipe that carries air to the lungs.
• bronchi: two main tubes leading from the trachea to each lung.
• bronchioles: smaller airways branching from the bronchi.
• alveoli: tiny air sacs where oxygen enters the blood.
• diaphragm: muscle below the lungs that helps breathing.
• inhale: to breathe air in.
• exhale: to breathe air out.
• oxygen: gas we need to release energy from food.
• carbon dioxide: waste gas produced during respiration.
• gas exchange: swapping of oxygen and carbon dioxide in the lungs.
• respiration: chemical reaction that releases energy from glucose.
• glucose: a type of sugar used in respiration.