Biology - 1st 9 Weeks Review

What is the role of a receptor in helping an organism maintain homeostasis?

• Receives messages sent by the control center.

• Carries out a response to restore internal conditions.

• Detects stimuli and sends information to the control center.

• Compares current conditions with ideal values for those conditions.

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NGSS.HS-LS1-3

Which of these does homeostasis most directly relate?

• Stability

• Evolution

• Scale and structure

• Interacting systems

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NGSS.HS-LS1-3

Which of these is an example of a positive feedback loop?

• Plants closing their stomata in response to water loss.

• The removal of salt from a saltwater fish during osmoregulation.

• The release of glucose by the liver in response to low blood sugar.

• Platelets stimulating the activation of more platelets during clotting.

Tags

NGSS.HS-LS1-3

Internal control systems maintain homeostasis by regulating which of these?

• pH of body fluids

• External conditions

• Receptors in the body

• The body's control centers

Tags

NGSS.HS-LS1-3

How does the liver help to regulate glucose levels in the blood?

• By storing glucose

• By producing insulin

• By releasing glucagon

• By excreting excess water

Tags

NGSS.HS-LS1-3

Which of the following are most important for an organism to maintain homeostasis?

• Reproduction and development

• Dependence on other organisms

• Behaviors and negative feedback

• Interactions with nonliving things

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NGSS.HS-LS1-3

The body's internal environment must stay _____

• Exactly the same at all times

• The same as its external environment

• Within narrow ranges that support human life

• Away from sudden outside temperature changes

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NGSS.HS-LS1-3

The long-term effects of a disruption of homeostasis include ______

• Destruction of organ systems

• The immune system's taking control

• Regulation of the internal environment

• Establishment of feedback mechanisms

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NGSS.HS-LS1-3

What type of carbon-based molecule is the first to be broken down by the body's cells to provide a source of energy?

• Fat

• Protein

• Amino Acids

• Carbohydrates

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NGSS.HS-LS1-7

The smallest particle of matter that can retain the chemical properties of carbon is a carbon....

• Atom

• Element

• Molecule

• Macromolecule