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Cells and DNA Unit

Study guide

What are the products of photosynthesis? Carbon Dioxide and water
What happens during photosynthesis? The cell uses the energy in sunlight to make food
The stage of respiration that releases most of the energy in glucose occurs where? Mitochondria
How are photosynthesis and respiration related? The have opposite equations
The cell's DNA is replicated in which stage? Mitosis
What is DNA molecule is shaped like? Spiral staircase
During DNA replication, adenine (A) always pairs with what? Thymine (T)
Each rung of the DNA ladder is made up of what? A pair of nitrogen bases
What stage of the cell cycle does replication occur? Interphase
What is copied during replication? The cell's DNA
What is the stage of the cell cycle that follows mitosis? Cytokinesis
What is the regular cycle of growth and division that cells undergo? The cell cycle
Which term refers to the movement of molecules from an area of higher concentration to an area of lower concentration? Diffusion
Which term refers to the diffusion of water molecules through a selectively permeable membrane? Osmosis
Which term refers to the movement of materials through a cell membrane without using the cell's energy? Passive transport
When two or more elements combine chemically, the form what? Compound
What is the function of a cell membrane? To control what enters and leaves the cell
Which organelle is the control center of a cell? Nucleus
What is the function of a cell wall? To protect and support the cell
Which organelles store food and other materials needed by the cell? Vacuoles
Which organelles release chemicals that break down large food particles into smaller ones? Lysosomes
What process releases energy from sugar/glucose? Respiration
The products of respiration are energy, water, and _____________. Carbon dioxide
Which stage of the cell cycle does the nucleus divide to form two identical nuclei? Mitosis
What is the final stage of the cell cycle where the cytoplasm divides? Cytokensis
During cytokensis in plant cells, what forms in the middle of the cell? Cell plate
Sugars and starches are examples of what? Carbohydrates
DNA and RNA belong to the group of organic compounds known as what? Nucleic Acids
The diffusion of __________ molecules through a selectively permeable membrane is called osmosis. Water
Active transport requires the cell to use its own ___________. Energy
Two or more elements combine chemically, they form what? Compound
What are the thin strands in the nucleus that contain genetic material called? Chromosomes
What organelle produces protein in a cell? Ribosomes
Created by: rachelwh