Cyanide is a poison that prevents mitochondria from using oxygen. As a result, the mitochondria cannot produce(1 point) Responses Glucose Glucose Energy Energy Lipids Lipids Proteins
33 answers
Energy
Transport of molecules within animal cells is assisted by a system of internal membranes that make up the(1 point) Responses Endoplasmic reticulum Endoplasmic reticulum Mitochondria Mitochondria Ribosomes Ribosomes Chloroplasts
Endoplasmic reticulum
What would most likely happen if the ribosomes in a cell were not functioning?(1 point) Responses The rate of transport of glucose in the cytoplasm would increase The rate of transport of glucose in the cytoplasm would increase The cell would undergo uncontrolled mitotic cell division The cell would undergo uncontrolled mitotic cell division The cell would produce antibodies The cell would produce antibodies The synthesis of enzymes would stop
The synthesis of enzymes would stop.
Which of these substances moves across cell membranes by osmosis?(1 point) Responses Sugar Sugar Salt Salt Water Water Protein
Water
Prokaryotes always have(1 point) Responses Specialized organelles Specialized organelles Genetic material Genetic material Many cells Many cells A nucleus
Genetic material
Which of the following organisms are prokaryotes?(1 point) Responses Plants Plants Animals Animals Fungi Fungi Bacteria
Bacteria
Which sequence correctly traces the path of a protein in the cell?(1 point) Responses ribosome, endoplasmic reticulum, Golgi apparatus ribosome, endoplasmic reticulum, Golgi apparatus endoplasmic reticulum, lysosome, Golgi apparatus endoplasmic reticulum, lysosome, Golgi apparatus ribosome, Golgi apparatus, endoplasmic reticulum ribosome, Golgi apparatus, endoplasmic reticulum ribosome, endoplasmic reticulum, chloroplast
ribosome, endoplasmic reticulum, Golgi apparatus
Which organelle would you expect to find in plant cells but NOT animal cells?(1 point) Responses ribosome ribosome smooth endoplasmic reticulum smooth endoplasmic reticulum mitochondrion mitochondrion chloroplast
chloroplast
The primary function of the cell wall is to(1 point) Responses direct the activities of the cell. direct the activities of the cell. support and protect the cell. support and protect the cell. store DNA. store DNA. help the cell move.
support and protect the cell.
Cell walls are NOT found in this type of organism.(1 point) Responses fungi fungi bacteria bacteria animals animals plants
animals
Which of the following is a function of the cell membrane?(1 point) Responses keeps the cell wall in place keeps the cell wall in place breaks down lipids, carbohydrates, and proteins from foods breaks down lipids, carbohydrates, and proteins from foods stores water, salt, proteins, and carbohydrates stores water, salt, proteins, and carbohydrates regulates the movement of materials into and out of the cell
regulates the movement of materials into and out of the cell
The cell membrane contains channels and pumps that help move materials from one side to the other. What are these channels and pumps made of?(1 point) Responses bilipids bilipids lipids lipids proteins proteins carbohydrates
proteins
Simple diffusion occurs because(1 point) Responses molecules constantly move and collide with each other. molecules constantly move and collide with each other. cellular energy forces molecules to collide with each other. cellular energy forces molecules to collide with each other. molecules are attracted to one another. molecules are attracted to one another. cellular energy pumps molecules across the cell membrane.
molecules constantly move and collide with each other.
During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will(1 point) Responses move across the membrane to the outside of the cell. move across the membrane to the outside of the cell. continue to move across the membrane in both directions. continue to move across the membrane in both directions. stop moving across the membrane. stop moving across the membrane. move across the membrane to the inside of the cel
continue to move across the membrane in both directions.
The diffusion of water across a selectively permeable membrane is called(1 point) Responses pinocytosis. pinocytosis. pressure. pressure. active transport. active transport. osmosis.
osmosis.
An animal cell that is surrounded by fresh water will burst because the water pressure causes the(1 point) Responses water to move into the cell. water to move into the cell. water to move out of the cell. water to move out of the cell. solutes to move out of the cell. solutes to move out of the cell. solutes to move into the cell.
water to move into the cell.
Celery stalks that are soaked in fresh water for several hours become stiff and hard. Similar stalks left in a salt solution become limp and soft. From this we can determine that the celery is in a __________ solution in the first scenario and a ___________ solution in the second scenario.(1 point) Responses isotonic/ hypertonic isotonic/ hypertonic hypertonic/ hypotonic hypertonic/ hypotonic hypotonic/ hypertonic hypotonic/ hypertonic hypotonic/ isotonic
hypotonic/ hypertonic
1 answer