Biology Standards

A prokaryote is _________________.

• A cell that has membrane bound organelles.

• A cell that has a nucleus.

• A cell that has no membrane bound organelles (No nucleus).

• A fungi.

Which of the following biological molecules are used by the body as a source of quick energy?

• carbohydrates
• protein
• fat
• nucleic acids

Rabbits introduced into Australia over 100 years ago have become a serious pest to farmers. Rabbit populations increased so much that they displaced many native species of plant eaters. What is the most logical explanation for their increased numbers?

• Rabbits have a high death rate.
• There are few effective predators.
• Additional rabbit species have been introduced.
• There is an increase in rabbit competitors.

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In an ecosystem, each trophic level receives energy from the level below it. What is the source of energy for the first trophic level? 

• Energy is recycled from higher levels
• The first level receives continuous radiant energy from the sun
• The first level produces energy without any outside input
• The first level converts nutrients from the soil into energy

A population of elephants has reached its carrying capacity. Which best describes the population?

• The population has become to dense for the ecosystem to support
• The population will remain stable, even if the ecosystem undergoes severe changes
• The population has grown to the largest size the ecsystem can support
• The population has decreased so much it is in danger of not surviving. 

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Which is the most likely function of a group of cells that contain a high number of chloroplasts?

• Respiration
• Transpiration
• Photosynthesis
• Fermentation

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What will most likely happen if an appropriate enzyme is added to a chemical reaction?

• The reaction rate will increase
• The reaction rate will decrease
• The reaction will stop
• It will explode

Which pair of structures best shows that plant cells have functions different from animal cells?

• Cytoplasm and mitochondria
• Chloroplasts and cell wall
• Ribosome and golgi
• Nucleus and cell membrane

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Which process best describes the assembly of proteins from amino acids?

• Atoms are linked to form a compound.

• Monomers are linked to form a polymer.

• Atoms are added to a monomer until it becomes a polymer.

• Molecules are added to a compound until it becomes a monomer.

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What is meant by the term interdependent?

• organisms all require heat from the Sun

• organisms depend on the planet's water to hydrate their cells

• organisms need bacteria to assist in digestion

• organisms rely on each other for food, and other life-sustaining factors

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