Star Biology EOC

Plant cells are able to produce their own food. This process happens in which structure?

• cell wall

• chloroplast

• mitochondrion

• vacuole

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Which statement best explains how sweating during exercise maintains homeostasis?

• It regulates mineral concentrations in cells.

• It regulates body temperature.

• It maintains water balance.

• It maintains sugar balance in cells.

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The chemical colchicine disrupts cell division. Which cell process would most likely stop if colchicine were added to a culture of human liver cells?

• mitosis

• meiosis

• crossing over

• active transport

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Which statement best explains why animals are considered heterotrophic?

• They are able to produce food through the process of photosynthesis.

• They are able to produce food through the process of respiration.

• They are able to obtain nutrients by decomposing plant and animal tissue.

• They are able to obtain nutrients by consuming other organisms or their products.

What carries the instructions for making amino acids in a protein?

• the nitrogen base on the tRNA

• the hydrogen bonding between nitrogen bases

• the sequence of nitrogen bases on the mRNA

• the nitrogen base bonding on the DNA molecule

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How mitosis and meiosis similar?

• both have two cell divisions

• both require DNA replication

• both produce gametes

• both involve crossing over

(1.02 MC) SC.912. . L.14.1 To help patients replenish bodily fluids quickly during an illness, doctors need to understand how cells behave in their environment. Doctors have confidence in what they know about how cells behave because

• cell theory has been tested, refined, and observed to be true over hundreds of years

• large medical institutions have conducted their own experiments justifying cell theory

• the basics of cell theory have not changed much since the original experiments

• what we know about cell theory has been published in reputable journals

SC. 912.L.14.1 Which of the following best summarizes why the technological invention of microscopes was important to biology?

• It allowed for development of the cell theory.

• It created a means of funding for cell research.

• It created public interest and support for research.

• It proved that cells could form spontaneously.

SC. 912. L.14.3 Which statement best compares a eukaryote and a prokaryote?

• Eukaryotes have a cell wall, while prokaryotes have a cell membrane.

• Eukaryotes have membrane-bound organelles, while prokaryotes have few specialized structures.

• Eukaryotes use active transport to move substances across the cell membrane, while prokaryotes use facilitated diffusion.

• Eukaryotes use flagella to move themselves through substances, while prokaryotes are not able to move.

SC. 912.L.14.3 Which of the following best compares the structures found in plant cells and animal cells?

• Animal cells contain cell walls and a large central vacuole while plant cells contain cell membranes and many small vacuoles.

• Animal cells do not contain chloroplasts, cell walls, or a large central vacuole while plant cells do.

• Plant cells contain rough endoplasmic reticulum and a Golgi apparatus while animal cells contain smooth endoplasmic reticulum surrounded by lysosomes.

• Plant cells have rigid cell walls and do not contain mitochondria or ribosomes while animal cells do.