Biology EOC Practice

(SC.912.L.14.3) There are some similarities between prokaryotic and eukaryotic cells. Which of the following structures is found in both prokaryotic and eukaryotic cells?

• lysosome

• mitochondria

• nucleus

• ribosome

(SC.912.L.14.1) The cell theory was first proposed in 1838. Evidence obtained through additional scientific investigations resulted in the current cell theory. Which statement describes a component of the original cell theory that was removed because of the new scientific knowledge?

• All living things are made of cells

• All Cells come from preexisting cells.

• Cells form from spontaneous generation

• Cells are the basic structural and functional units of life.

(SC.912.L.14.7) Terrestrial plants have stomata on the surface of their leaves. A single stoma is surrounded by two guard cells that change shape in response to environmental factors and open or close the stoma. Which of the following best explains how the structure of the leaf is used in processes that occur in the plant?

• Water enters the plant through the surface of the leaf for transpiration

• Gases for photosynthesis are exchanged through the surface of the leaf

• Energy for cellular respiration is absorbed through the surface of the leaf.

• Carbon dioxide enters the plant through the surface of the leaf for cellular respiration.

Tags

NGSS.HS-LS2-5

(SC.912.L.14.36) The rate at which blood flows through the human body changes in response to many factors. Which statement describes one of these factors and its effect on blood flow?

• The narrowing of blood vessels increases pressure and leads to faster blood flow.

• High blood viscosity increases the resistance in the blood vessels and leads to slower blood flow.

• Low blood pH decreases the rate of diffusion through the blood vessels and leads to slower blood flow.

• The changing of the shape of red blood cells to a crescent shape decreases resistance and leads to faster blood flow.

Tags

NGSS.HS-LS1-3

(SC.912.L.14.52) The immune system has both specific and nonspecific defenses against viral infections. Which statement describes a nonspecific response of the immune system in fighting viral infections?

• T cells are produced to search out and destroy the viruses.

• Memory B cells are activated to rapidly respond to the viral infection.

• Plasma cells quickly replicate and release antibodies that bind to the viruses.

• Virus-infected cells produce interferons that lead to the inhibition of viral replication.

(SC.912.N.1.1) Carmen conducted an experiment to determine if listening to different types of music would affect a person's pulse. Her hypothesis was that pulse rate would change with different types of music. Each person listened to seven different selections of music for 30 seconds each. Each person's pulse was taken before the music and then after each 30-second interval of music. The pulses were taken again after the music selections were completed. Based on her experiment, Carmen concluded that a person's pulse rate changed when the person listened to different types of music....What component is missing from Carmen's experiment?

• question

• a hypothesis

• a control group

• a description of the experiment

(SC.912.N.1.1) The graph below shows atmospheric carbon dioxide levels since the year 1880. Which of the following conclusions can be drawn from this graph?

• Atmospheric carbon dioxide levels are responsible for global temperature change.

• Atmospheric carbon dioxide levels have been rising at about the same rate for the past century.

• Atmospheric carbon dioxide levels have remained the same over the past century

• Atmospheric carbon dioxide levels have been rising at an increasingly higher rate as the past century has progressed.

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

(SC.912.L.14.1) The cell theory was first proposed in 1838. Evidence obtained through additional scientific investigations resulted in the current cell theory. Which statement describes a component of the original cell theory that was removed because of the new scientific knowledge?

• All living things are made of cells.

• All cells come from other preexisting cells.

• Cells form through spontaneous generation.

• Cells are the basic structural and functional units of life.

(SC.912.L.14.1) Which invention for the 17th century allowed for the development of modern cell theory?

• x-rays

• computers

• the light microscope

• the scanning electron microscope

(SC.912.L.14.1) Which of the these statements is a principle of the cell theory that supports the idea that new cells will replace damaged cells in a scraped knee.

• All living things are composed of one or more cells.

• Cells are the basic units of structure and function in living things.

• All cells arise from previously existing cells.

• Most cells are too small to be viewed with the unaided eye.