- These words were written by Robert Hooke in 1665. The pores or cells that Hooke described were really--
Your answer:
cell walls
nuclei
cell membranes
mitochondria
- What do plants require in order to undergo photosynthesis?
Your answer:
CO2 + C6H12O6 + sunlight
O2 + C6H12O6
CO2 + H2O + sunlight
O2 + H2O + sunlight
- How is the prokaryotic bacterium in the diagram different from a eukaryotic cell?
Your answer:
It has ribosomes to make proteins.
It stores its genetic information in DNA.
It has a cell membrane.
It has no membrane-bound nucleus.
- Photosynthesis is important for life on Earth because it--
Your answer:
uses simple elements
produces oxygen
is responsible for most decay
releases usable forms of nitrogen
-
Your answer:
Circulation
Catching prey
Movement
Attachment
- Diffusion is the movement of substances from _________ to ____________ concentrations.
Your answer:
high, low
low, high
high, high
low, low
- The structure in the cell membrane seen embedded in membrane that helps to transport larger molecules accross the membrane is called this: (seen in red in picture)
Your answer:
lipid
cholesterol
protein
carbohydrate
- Because the cell membrane is selective about what it allows in and out of the cell, we say it is ____________________.
Your answer:
exclusively-permeable
semi-permeable
non permeable
allpermeable
- If a bag contains 2M sucrose solution and the outside environment contains the same amount of solution - 2 M, what happens to the solution (seen in last example).
Your answer:
sucrose will move out of bag and water will move into bag.
there will be no net movement of particles because solutions are equal in concentrations.
sucrose will move into bag and water will move out of bag.
sucrose will move into bag and water will move into bag.
- What structure is common to all five kingdoms of living organisms?
Your answer:
Nucleus
Cell wall
Mitochondria
DNA
- Elodea is a common plant beginner scientists use to see chloroplasts. If Elodea is placed in a salt solution, what direction will water move to reach equilibrium?
Your answer:
Water will move into the Elodea cells to reach equilibrium
There will be no net movement of water.
Water will move out of the Elodea cells to reach equilibrium.
Salt will move into cell but water won't move.
- Compared to a skin cell, a muscle cell is likely to have more--
Your answer:
Golgi bodies
cell membranes
chloroplasts
mitochondria
- Substances will sometimes move into a cell membrane from a low to high concentration gradient and ATP is required. What do we call this type of transport?
Your answer:
passive
active
diffusion
osmosis
- A cell with numerous ribosomes is probably specialized for--
Your answer:
enzyme storage
energy production
protein synthesis
cell division
- Which of the following organelles is present in both prokaryotes and eukaryotes?
Your answer:
Ribosome
Nucleus
Golgi body
Endoplasmic reticulum