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WorksheetsA. P Biology Cells and Membrane
Total questions: 101
Worksheet time: 2hrs 53mins
What do eukaryotic and prokaryotic cells, have in common?
Flagellum
Membrane-bound organells
Nucleus
Cell membrane
Animal cells are...
Multi-celled
Single-celled
Both
Neither
Which of the following reaction takes place during breakdown of polymers?
dehydration
hydrolysis
condensation
covalent bond
A phospholipid has two parts. What are they called?
Hydrophilic Head, Hydrophobic Tail
Hydrophobic Head, Hydrophilic Tail
what is the function of a lysosome?
To create energy for the cell
To command the cell what to do
To remove waste using digestive enzymes from the cell
To protect the cell
What is the difference between a prokaryotic cell and a eukaryotic cell?
Prokaryotes do not have a nucleus or organelles, but a eukaryotic cell does
Eukaryotic cells do not have a nucleus or organelles, but prokaryotes do
Which of the following is a eukaryotic cell?
Bacteria
Plant
Plant and animal
Animal
What is the difference between mitochondria and chloroplast?
Mitochondria produces energy and chloroplasts breaks down energy
There is no difference. They are the same.
Mitochondria breaks down energy from food and chloroplasts produce energy from sunlight.
Mitochondria contains DNA and chloroplasts are green
A cross section of part of a Golgi complex is shown. Part of the membrane of the Golgi complex pinches off and moves away. Which of the following is a function of this process?
to release energy from ATP
to deliver proteins to other locations in the cell
to collect amino acids for use in protein synthesis
to sent messages about cell requirements to the nucleus
Keratin is a protein found in hair. Where in a cell is keratin made?
nucleus
vacuole
ribosomes
mitochondria
Tay-Sachs disease is a human genetic abnormality that results in cells accumulating and becoming clogged with very large and complex lipids. Which cellular organelle must be involved in this condition?
the endoplasmic reticulum
the Golgi apparatus
the lysosome
membrane-bound ribosomes
Liver cells are specialized cells that carry out a multitude of tasks, including the synthesis of cholesterol and the breakdown of protein metabolites. These cells would be expected to contain a large proportion of which organelle relative to all others?
smooth ER
rough ER
golgi
nucleolus
The cell membrane is _______________ permeable.
selectively
somewhat
physically
ionically
The cell membrane is mostly made of what?
Membrane-spanning Proteins
Surface Proteins
Phospholipids
Carbohydrates
What are the two parts of a phospholipid?
head
enzyme
tail
hormone
What forms due to a difference in concentration of particles on opposite sides of the membrane?
concentration flow
concentration gradient
equilibrium
diffusion gradient
Which of the following statements is true?
Water is transported actively against a concentration gradient.
Water flows into the direction of the lowest water potential.
Active transport is ATP-independent.
Osmosis requires impermeable membranes.
To transport water from the root into the shoot does the water potential in the xylem need to become more positive or negative?
Positive
Negative
Neither positive nor negative
What will happen?
Assume that the “cell” below is permeable to sucrose, glucose, and water but impermeable to starch. Which of the following statements is correct?
(A) Starch will diffuse into the cell.
(B) Starch will diffuse out of the cell.
(C) There will be no net movement of glucose
(D) Glucose will diffuse into the cell
(E) Sucrose will diffuse into the cell
ตัวละลาย SOLUTE = ตัวทำละลาย SOLVENT
The solution surrounding the cell in Diagram B, would be defined as:
hypertonic
hypotonic
isotonic
This egg has shrunk, what type of solution was it placed in?
hypotonic solution
hypertonic solution
isotonic solution
If the dots represent sugar what direction will the water flow?
Into the cell
Out of the cell
Both equally (equilibrium)
Hydrophilic means
water repelling
water attracting
no water
none of the above
Hydrophobic refers to
water repelling
water attraction
none of the above
The fluid mosaic model suggests that ___________ are dispersed individually inserted into the phospholipid bilayer was suggested by scientists
proteins, Gorter and Grendel
lipids, Gorter and Grendel
proteins, Singer and Nicolson
proteins, Daveson and Danelli
The steroid cholesterol that is wedged between phospholipid molecules can be thought of as a ______________buffer
temperature
protein
movement
In relatively warm temperatures, cholesterol makes the membrane _____________by ____________the movement of phospholipds
more fluid, moving
less fluid, restraining
does nothing
Peripheral proteins _________________embedded
are
not
none of the above
_____________________are special proteins that have oligosaccharides attached to them and are important for cell-to-cell recognition and adhesion
glycolipids
glycoproteins
integral protein
peripheral proteins
_________________have a carbohydrate attached by a covalent bond. Their role is to maintain the stability of the cell membrane and facilitate cellular recognition
glycolipid
glycoprotein
perhipheral protein
cholesterol
_____________________proteins act as transporters, channels, linkers, and receptors.
Glycoprotein
Glycolipid
Cholesterol
Integral
Many ____________________exists on the surface of cell membranes to carry out an action on a specific substrate (simple enzyme function)
Integral protein
cholesterol
Peripheral
Glycoprotein
What is the name of the structure labeled Z?
peripheral Protein
integral Protein
cholesterol
glycoprotein
What is the name of the structure labeled X?
peripheral Protein
integral Protein
phospholipid bilayer
glycoprotein
What is the name of the structure labeled G?
peripheral Protein
integral Protein
cholesterol
glycolipid
What is the name of the structure labeled C?
peripheral Protein
integral Protein
glycoprotein
glycolipid
What is the name of the structure labeled D?
hydrophillic
hydrophobic
glycoprotein
glycolipid
Osmosis is each of the following EXCEPT... Which is FALSE about osmosis?
Requires ATP to force the water through aquaporins
Water specific movement DOWN the concentration gradient
Uses globular-shaped, pore proteins to diffuse past polar heads on the phospholipid bilayer since it may get stuck
Would not occur in a cell with 5% sugar dissolved in it if it is placed in an isotonic solution with 95% water and 5% solute.
Which of the following is untrue? Which is FALSE?
Aquaporins = allow diffusion of water, specifically called osmosis
Fibrous proteins, spanning the entire length of an animal cell, would only be used to stabilize that animal cell.
Globular proteins could be pores, channels, or glycoproteins
Glycoproteins are for cell recognition and may extend into the extracellular space
One type of Phagocytosis is endocytosis?
True
False
What is the process of drinking?
Phagocytosis
Pinocytosis
Cellular respiration
Photosynthesis
Enables cell to engulf bulk quantities of specific large molecules is called
pinocytosis
phagocytosis
receptor-mediated endocytosis
exocytosis
What happens to a cell when exposed to a hypertonic solution?
shrivels
swells
stays the same
When organisms maintain a stable internal environment it is known as
homeostasis
differentiation
maintenance
transformation
When you are sick and your white blood cells engulf the foreign bacteria, how would this occur?
By diffusion
By phagocytosis
By pinocytosis
By facilitated diffusion
