Biology 2
celery stalks that are immersed in fresh water for several hours become stiff and hard. Similar
stalks left in a salf solution become limp and soft. From his we can deduce that the cells of the
celery stalk✔✔hypertonic to fresh water but hypotonic to the salt solution
the movement of a substance across a biological membrane against its concentration gradient
with the help of energy input is✔✔active transport
what kinds of molecules pass through a cell membrane most easily✔✔small and hydrophobic
which of the following statements is correct about diffusion✔✔it is a passive process in which
molecules move from a region of higher concentration to a region of lower concentration
all of the following are functions of integral membrane proteins except✔✔protein synthesis
all of the following are part of a prokaryotic cell except✔✔an endoplasmic reticulum
where is the plasma membrane found✔✔in all cells
where is the mitochondrion found✔✔in eukaryotic cells only
where is the nucleoid found✔✔in prokaryotic cells only
the golgi apparatus has a polarity or sidedness to its structure and function. Which of the
following statements correctly describes this polarity✔✔all the the above!!!
what organelle contains hydrolytic enzymes✔✔lysosome
what organelle helps to recycle the cell's organic material✔✔lysosome
what organelle is one of the main energy transformers of cells✔✔mitochondrion
what organelle contains its own DNA and ribosomes✔✔mitochondrion
celery stalks that are immersed in fresh water for several hours become stiff and hard. Similar
stalks left in a salf solution become limp and soft. From his we can deduce that the cells of the
celery stalk✔✔hypertonic to fresh water but hypotonic to the salt solution
the movement of a substance across a biological membrane against its concentration gradient
with the help of energy input is✔✔active transport
what kinds of molecules pass through a cell membrane most easily✔✔small and hydrophobic
which of the following statements is correct about diffusion✔✔it is a passive process in which
molecules move from a region of higher concentration to a region of lower concentration
all of the following are functions of integral membrane proteins except✔✔protein synthesis
all of the following are part of a prokaryotic cell except✔✔an endoplasmic reticulum
where is the plasma membrane found✔✔in all cells
where is the mitochondrion found✔✔in eukaryotic cells only
where is the nucleoid found✔✔in prokaryotic cells only
the golgi apparatus has a polarity or sidedness to its structure and function. Which of the
following statements correctly describes this polarity✔✔all the the above!!!
what organelle contains hydrolytic enzymes✔✔lysosome
what organelle helps to recycle the cell's organic material✔✔lysosome
what organelle is one of the main energy transformers of cells✔✔mitochondrion
what organelle contains its own DNA and ribosomes✔✔mitochondrion
