Bio Ch. 3 Vocabulary 2 Question Preview (ID: 12104)
Ch.3 Review.
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These divide DNA during cell division.
a) lysosomes
b) centrioles
c) chloroplasts
d) cell wall
A membrane bound organelle that contain enzymes. Defends cells from bacteria and viruses.
a) centrioles
b) cell wall
c) chloroplasts
d) lysosomes
Makes plants green by carrying out the process of photosynthesis.
a) chloroplasts
b) lysosomes
c) cell wall
d) centrioles
GIves protection support and shape to the cell
a) chloroplasts
b) lysosomes
c) cell wall
d) centrioles
Allows some, but not all materials to cross through.
a) selective permeability
b) selective cells
c) selective lisosomes
d) selective proteins
Drives molecules across a membrane from a region of lower concentration to a region of higher concentration.
a) passive transport
b) active transport
c) diffusion
d) concentration gradient
Is the movement of molecules in a fluid or gas from a region of higher concentration to a region of lower concentration.
a) passive transport
b) active transport
c) diffusion
d) concentration gradient
Is the movement of molecules across a cell membrane without energy input from the cell.
a) passive transport
b) active transport
c) diffusion
d) concentration gradient
is the difference of concentration from one location to another
a) passive transport
b) active transport
c) diffussion
d) concentration gradient
A _________ is a protein that detects a signal molecule and performs an action in response.
a) difussion
b) lipid
c) ribosome
d) receptor
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