問題一覧
1
Proteins and polysaccharides that are too large to move into a cell through diffusion move by
Endocytosis
2
Which type of molecule forms the cell membrane?
Phospholipid
3
which process uses proteins to move molecules against a concentration gradient
Active transport
4
Unlike a eukaryotic cell, a prokaryotic cell does not have
Nucleus
5
Which of the following led to the discovery of cells?
Microscopes
6
Which of the following statements about an isotonic solution and
The solution has the same solute concentration that the cytoplasm does
7
Which phrase best describes rough ER?
Studded with ribosomes
8
Microfilaments, microtubules, and intermediate fibers are
Protein fibers
9
Plant cells have a large membrane-bound compartment stored. This compartment is called the
Central vacuole
10
The double membrane surrounding the nucleus is called
Nuclear envelope
11
Which process occurs inside the chloroplasts?
Photosynthesis
12
Removing materials from a cell in vesicles is called
Expocytosis
13
Phospholipids are molecules that have
one polar phosphate head and two nonpolar fatty acid tails
14
Which phrase best describes passive transport?
Requires no energy from the cell
15
How does water pass through the cell membrane?
directly through the lipid bilayer
16
Which process is occurring when a vesicle fuses with the cell membrane
exocytosis
17
Which of the following is a major principle upon which cell theory is based?
All organisms are made up of cells
18
Which organelles are unique to plant cells?
Chloroplasts
19
Which phrase best describes the property of selective permeability?
Some molecules pass
20
Which organelles supply energy to the cell?
Mitochondria
21
Which model did scientists develop to describe the cell membrane
Fluid mosaic model
22
Osmosis is a type of
Passive transport
23
which of the following organelles can be found in the cytoplasm and on the surface of the endoplasm reticulum
Ribosomes
24
Which organelle is the storehouse for most of a cells genetic information
Nucleus
25
Which of the following is a network of proteins that supports and gives shape to a cell?
Cytoskeleton
26
A cell that requires a lot of energy might contain large numbers of
Mitochondria
27
What is the term for the diffusion of water across a semipermeable membrane?
Osmosis
28
Water moves into a cell when the solution surrounding the cell is
Hypotonic
29
The interior of the lipid bilayer of a cell membrane forms a nonpolar zone that
Repels ions and most polar molecules
30
What is the term for the jellylike substance
Cytoplasm
31
Molecules that are too large to be moved across a cell membrane
Exocytosis
32
Which organelle contains enzymes that break down damaged cell part
Lysosome
33
the movement of molecules down a concentration gradient through transport proteins in the cell is a type of
Facilitated diffusion
34
Specialized structures that work together inside a cell are called
Organelles
35
A solution that is hypotonic to a cell has
Fewer solutes than the cell
36
As a result of diffusion, the concentration of many types of substances
eventually becomes balanced on both sides of a membrane.
37
Unlike passive transport, active transport requires
Energy from the cell
38
Proteins that serve as tunnels for specific substances through the lipid bilayer are
Channel proteins
39
Which process requires no energy from the cell?
Facilitated diffusion