Biology EOC RC1

People who have leukemia, a cancer that affects white blood cells, are often given Cytarabine. This drug inhibits the synthesis of DNA. Which phase of the cell cycle is most affected by Cytarabine?

• G1 phase

• S phase

• G2 phase

• M phase

Which cellular process takes place in the ribosomes that are bound to the endoplasmic reticulum?

• The breakdown of waste material

• The conversion of radiant energy to glucose

• The synthesis of new proteins

• The replication of nucleic acids

What is the end result of mitosis

• 2 cells that are identical to the parent cell
• 2 cells that have half the number of chromosomes as the parent cell
• 4 cells that are identical to the parent cell
• 4 cells that have half the number of chromosomes as the parent cell

Tags

NGSS.HS-LS1-4

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

The ability to maintain a stable internal environment is called ________________.

• Metabolism

• Mitosis

• Heterozygous

• Homeostasis

Tags

NGSS.HS-LS1-3

What is one way that a lysogenic infection differs from a lytic infection?

• A lysogenic virus does not act on bacteria as a lytic virus does.
• A lysogenic virus can remain in the host DNA for a longer period without becoming active.
• A lysogenic virus contains RNA instead of DNA.
• A lysogenic virus directs the production of new viruses right away.

Cell have several mechanisms for regulating their internal environments. Which of these mechanisms involved in maintaining homeostasis requires energy?

• osmosis

• diffusion

• active transport

• passive transport

Tags

NGSS.MS-LS1-7

The concentration of water is higher in the soil than in plant root cells. Water moves into root cells of a plant by...

• Facilitated Diffusion
• Simple Diffusion
• Active Transport
• Osmosis

Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?

• In order for genetic information to be transferred into daughter cells.
• In order for the cell to be able to increase in size.
• In order for the DNA to be contained in the nucleus.
• In order for the cell to re-order the DNA sequencing in the new cells.

Tags

NGSS.HS-LS1-4

NGSS.HS-LS3-2

DNA replication occurs in the -

• mitochondira

• nucleus

• endoplasmic reticulum

• cell membrane