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WorksheetsSnapShot #1 Review
Total questions: 34
Worksheet time: 22mins
Homeostasis
allows for a wildly fluctuating internal environment
is impossible in vertebrates
is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation
When you are cold, you shiver and your blood vessels contract, which warms you up. When you are hot, you sweat and your blood vessels expand, which cools you down.
False
True
When the body temperature drop below normal ranges, arterioles in the skin will
dilate to allow less blood to flow to skin surface
constrict to allow less blood to flow to skin surface
dilate to allow more blood to flow to skin surface
constrict to allow more blood to flow to skin surface
Which of the following correctly pairs the hormone and the response that it causes
Glucagon - makes body cells take in glucose
Insulin - makes body cells take in glucose
Pancreas - makes liver release stored glucagon
Liver - makes pancreas take in stored insulin
diabetes is a disease that affects your body's ability to produce or use ___.
energy
insulin
glucose
negative feedback
Which body system controls the body to maintain homeostasis?
excretory
nervous
circulatory
skeletal
Which of the following is an example of positive feedback?
Thermoregulation
Blood Pressure
Childbirth
Blood Sugar Levels
What is an example of a positive feedback mechanism?
What do enzymes do?
Build things up or break them down
Help filter waste from the body
Create environments where food can be eaten
Add and remove water
Which category of macromolecules do enzymes belong to?
Carbohydrates
Proteins
Fats/Lipids
In the diagram, what is letter A?
product
enzyme-substrate complex
substrate
active site
Letter D...
enzyme
active site
substrate
products
Letter B...
substrate
active site
enzyme
products
Letter C...
products
substrate
enzymes
active site
Letter E...
active site
products
substrate
enzyme
An enzyme speeds up a reaction by
raising the activation energy
lowering the activation energy
releasing energy
absorbing energy.
What happens to an enzyme when it is denatured?
Activation energy is lowered
It becomes stronger
It loses its shape
Activation energy is raised
Integumentary
Skin, hair, nails
Bones, cartilage, ligaments
Skeletal, cardiac, & smooth muscles
Lymph nodes, thymus, spleen
Urinary
Skin, hair, nails
Glands (pancreas, adrenals, pituitary)
Lymph nodes, thymus, spleen
Kidneys & bladder
Skeletal
Skeletal, cardiac, & smooth muscles
Bones, cartilage, ligaments
Stomach, intestines, esophagus
Glands (pancreas, adrenals, pituitary
Reproductive
Glands (pancreas, adrenals, pituitary)
Lymph nodes, thymus, spleen
Testes or ovaries
Skeletal, cardiac, & smooth muscles
Muscular
Stomach, intestines, esophagu
Bones, cartilage, ligaments
Heart, blood vessels
Skeletal, cardiac, & smooth muscles
Lymphatic
Lymph nodes, thymus, spleen
Lungs, trachea, pharynx
Bones, cartilage, ligaments
Lungs, trachea, pharynx
Digestive
Glands (pancreas, adrenals, pituitary)
Kidneys & bladder
Stomach, intestines, esophagus
Skeletal, cardiac, & smooth muscles
Nervous
Skeletal, cardiac, & smooth muscles
Lymph nodes, thymus, spleen
Glands (pancreas, adrenals, pituitary)
Brain, spinal cord, peripheral nerves
Respiratory
Skeletal, cardiac, & smooth muscles
Skin, hair, nails
Heart, blood vessels
Lungs, trachea, pharynx
Endocrine
Glands (pancreas, adrenals, pituitary)
Lymph nodes, thymus, spleen
Stomach, intestines, esophagus
Testes or ovaries
Cardiovascular
Glands (pancreas, adrenals, pituitary)
Heart, blood vessels
Lungs, trachea, pharynx
Kidneys & bladder
