What chemicals are needed for respiration? Glucose and oxygen react together in cells to produce carbon dioxide and water and releases energy. The reaction is called aerobic respiration because oxygen from the air is needed for it to work. What 3 substances must be present in mitochondria for aerobic respiration to take place? Most of […]

What is bad about habitat loss? Habitat loss poses the greatest threat to species. The world’s forests, swamps, plains, lakes, and other habitats continue to disappear as they are harvested for human consumption and cleared to make way for agriculture, housing, roads, pipelines and the other hallmarks of industrial development. How does habitat loss affect […]

What part of the plant cell allows the plant to complete the process of photosynthesis? chloroplasts What are the parts and functions of a plant cell? Animal cells and plant cells Part Function Cytoplasm Jelly-like substance, where chemical reactions happen Nucleus Carries genetic information and controls what happens inside the cell Mitochondria Where most respiration […]

How is starch digested and absorbed? Starch breaks down to shorter glucose chains. This process starts in the mouth with salivary amylase. The process slows in the stomach and then goes into overdrive in the small intestines. The short glucose chains are broken down to maltose and then to glucose. Where is sugar absorbed in […]

Does cell reproduction require energy? Cell division requires the coordinated generation of energy for multiple pro- cesses, including the synthesis of the machinery required for DNA replication and mitosis. Autophagy and particularly mitophagy are crucial pathways that link energy availability to cell-cycle progression. What are two reasons for cell reproduction? The two reasons why cell […]

What takes the genetic code of DNA to the cytoplasm? Messenger RNA (mRNA) is a single-stranded RNA molecule that is complementary to one of the DNA strands of a gene. The mRNA is an RNA version of the gene that leaves the cell nucleus and moves to the cytoplasm where proteins are made. How does […]

Are redhead babies born with red hair? Question: Are redheads born with red hair? Answer: In general, most people who have red hair would show the trait at birth. Some people have the genotype for red hair in addition to genes coding for dark hair (more eumelanin production). Is red hair inherited from mother or […]

How does burning fossil fuels affect the balance of the carbon cycle? Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. This extra carbon dioxide is lowering the ocean’s pH, through a process […]

What should a food worker do to prevent a chemical hazard? There are many ways, but three basic things to remember are (1) properly wash all fruits and vegetables prior to use, (2) keep all chemicals away from cooking and prepping surfaces when food is present, and (3) store all chemicals separately from food items. […]

What are some example of communicable diseases? Some examples of the communicable disease include HIV, hepatitis A, B and C, measles, salmonella, measles, and blood-borne illnesses. Most common forms of spread include fecal-oral, food, sexual intercourse, insect bites, contact with contaminated fomites, droplets, or skin contact. What are the 4 types of communicable diseases? Communicable […]