Match the membrane structures with their function or characteristics. 14
Membrane Structure
Description
11.
Phosphate heads
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12.
Fatty acid tails
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3.
Membrane proteins
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4.
Cholesterol
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5.
Glycoproteins
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Cell identification
Receptors, transporters
Hydrophobic interior of membrane
Hydrophilic surfaces of membrane
Maintains rigidity

Identify the type of energy used in each action. the flexing of an arm muscle: a signal transduction process by a neuron: a ball at the top of a hill: 1. electrical energy 2. mechanical energy 3. gravitational potential energy

When a gasoline engine burns gasoline, what type of chemical reaction is occurring?

Fill in the blank 1. digestion occurs in the small intestine through the action of enzymes. 2. urea, excess water, and other waste materials are eliminated in a water fluid called 3. can cause infections by injecting dna or rna into hosts. 4. the human immune system produces in response to a vaccine, which later can bind to and destroy a pathogen if it invades. 5. are structures that link bone to bone at a joint 6. in the heart, blood flows from the right atrium to the right ventricle, where it is pumped to the the words i can use are: lymphocytes gliding pivot gas urine absorption dermis fulcrum lungs chemical viruses capillary vertebrae esophagus tendons antibodies synapses ligaments kidneys pathogens