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Stage 1 cells
Stage 1 cells
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A quiz about cells
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
A plant cell wall is made of:
Phospholipids
Cellulose
nucleotides
Peptidoglycan
2
The organelle that protects genetic material, hence directs cell activities is:
Mitochondria
Cell Membrane
Nucleus
Brain
3
The passive movement of a substance across a membrane aided by a protein
diffusion
exocytosis
active transport
facillitated diffusion
4
Osmosis is the movement of water from a region of:
low to high solvent concentration
High to low solute concentration
low to high solute concentration
hydrophilia to hydrophobia
5
Cells that have a cell wall are:
animals and plant cells
virus'
Animal cells
plant cells
6
Prokaryotes are:
macrocellular
Multicellular
Polycellular
Unicellular
7
The function of the Mitochondria is:
Produce energy (Cellular Power station)
to facilitate photosynthesis
digest cell waste
to direct cell activities
8
What makes rough ER rough?
carbohydrates
scales
Cell debris
Ribosomes
9
The energy store within animals is
glucose
cellulose
glycogen
starch
10
The function of the cell membrane is:
to control the movement of substances in and out of the cell
maintain the identity of the cell
receive chemical messages
All of the above
11
Which of the following processes require energy?
facilitated diffusion
Diffusion
Endocytosis
all of the above
12
If a blood cell bursts (lyses) it is possible that:
has lost the ability to remove salt from the inside
the concentration of salt on the outside was greater
it spontaneously combusted
it can repair itself
13
Cell membrane receptors
cause the cell to lyse
Identify specific chemical messangers
Can receive messages from any molecule
Only occur on brain cells
14
The following picture represents
Endoplasmic reticulum
Nucleus
Golgi apparatus/body
Cell membrane
15
If the movement of a substance across a membrane is passive it:
moves with the concentration gradient
Requires a protein to facilitate its passage
moves against a concentration gradient
requires energy
16
The Stage 1 mid year Biology exam is in week:
5
7
6
8
17
The efficiency of the movement of substances across a membrane is increased by:
low SA:V
A decrease in temperature
high SA:V
phospholipids
18
The organelle where photosynthesis occurs is:
chloroplast
chlorophyll
Rough Endoplasmic reticulum
Leaf
19
The cell membrane:
Is composed of proteins
all of the above
Is dynamic
is composed of lipids
20
The function of the Smooth ER is
protein synthesis
secretion of cell products
the site of cellular party time
Synthesis of lipids (cellular workbench)
21
The fluid Mosaic model is the model used to describe:
Cytoplasm
Cell Membrane
Cell wall
Enzyme action
22
The most basic unit of life is a:
Cell
Molecule
Virus
Atom
23
One difference between prokaryotes and eukaryotes is:
Prokaryotes have a well defined nucleus
Prokaryotes have no genetic material
eukaryotes have circular DNA
Eukaryotes have membrane bound organelles
24
What are organelles?
Deformed organs
Musical instruments
Chemical messengers
Structures within a cell that perform specific functions
25
Solvent
is always salt
causes substances to dissolve
causes substances to dissolve
is always water