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Worksheetsmetabolism across cell membrane
Total questions: 103
Worksheet time: 58mins
Xác định protein bám màng
a
b
g
h
Màng sinh chất có chức năng nào sau đây?
nó tạo thành một rào cản có chọn lọc
nó có các thụ thể giúp truyền tin tế bào
là trung tâm của tế bào
liên quan đến việc nhận biết tế bào quen lạ
Các phân tử nhỏ, không phân cực, kỵ nước như axit béo
dễ dàng đi qua lớp kép của màng
khuếch tán rất chậm qua lớp kép
yêu cầu protein vận chuyển
nhập bào vào cơ thế
Các phospholipid màng
có các đầu kỵ nước đối diện với tâm của màng và được che chắn khỏi nước
có đuôi ưa nước hướng ra ngoài
vẫn còn chất lỏng vì chúng được đóng gói chặt chẽ
không đáp án nào đúng
Chất nào sau đây hầu như không gặp khó khăn khi đi qua màng bằng cách khuếch tán qua lớp kép?
Nước
Oxi
Cacbondioxide
Na+
Cholesterol liên quan đến màng
được gắn vào protein và mở rộng ra môi trường xung quanh tế bào
giúp ổn định màng ở nhiệt độ cơ thể
là một bất thường do chế độ ăn nhiều cholesterol
cả a và c
Một chức năng chính của glycoprotein và glycolipid trong màng sinh chất là
dính kết các tế bào lại với nhau để tạo thành các mô
cho phép các tế bào xác định nhau
gắn màng vào bộ xương tế bào
giúp giữ dáng
Khi các bác sĩ thực hiện cấy ghép nội tạng, họ sẽ chọn một mô phù hợp của người hiến tặng. Thành phần nào được kết hợp?
màng phospholipid
bộ xương tế bào
cacbohydrat bề mặt tế bào
cholesterol
Mô hình khảm chất lỏng mô tả một màng bao gồm
một lớp kép phospholipid với các protein xuyên màng
2 lớp phospholipid với protein ở giữa
các protein và phospholipid riêng lẻ có thể trôi dạt
Cacbonhidrat bám với lớp phospholipid
Loại phân tử nào đi qua màng tế bào dễ dàng nhất?
ion
nhỏ và kỵ nước
lớn và kỵ nước
tích điện
Điều nào sau đây cho phép nước di chuyển nhanh hơn qua màng tế bào?
Kênh aquaporins
ATP
protein bám màng
kênh K+/Na+
Cấu trúc nào là đầu phân cực ưa nước của phân tử photpholipit?
F
D
C
A1
Cấu trúc nào là đuôi kỵ nước của phân tử photpholipit?
E
F
A2
D
Chuyển động ngang của photpholipit xảy ra thường xuyên hơn chuyển động lật
Điền Đ hoặc S
(a)
Cholesterol ảnh hưởng như thế nào đến màng tế bào ở nhiệt độ thấp?
giúp nó không trở nên quá cứng nhắc
làm cho nó nhớt hơn
biến tính nó
đảm bảo rằng nó đông đặc
Chức năng của màng sinh chất là….
điều chỉnh những gì đi vào và ra khỏi tế bào.
chống lại vi khuẩn và vi rút xâm nhập vào tế bào.
đảm bảo mỗi tế bào tự tái tạo
đảm bảo mỗi tế bào có thể di chuyển
Phần lớn màng sinh chất được cấu tạo bởi (a) .
(phospholipid, cholesterol, cacbohydrat, protein)
Tính chất nào mà lớp kép phospholipid không cung cấp cho màng sinh chất?
cung cấp rào cản giữa bên trong và bên ngoài tế bào
giao tiếp giữa các tế bào
dẫn truyền xung điện trong tế bào thần kinh
cho phép các tế bào liên kết với nhau
Siapakah yang memperkenalkan Model Mozek Bendalir?
Who are the scientists that proposed the Fluid Mosaic Model?
S. L. Singer
G. L. Nicholson
G. J. Nicholson
S. J Singer
Pada tahun bilakah Model Mozek Bendalir diperkenalkan?
When is the year Fluid Mosaic Model being introduced?
1792
1279
1972
1927
Apakah struktur S?
What is structure S?
Kolesterol
Cholesterol
Kepala berkutub hidrofilik
Polar hydrophilic head
Glikolipid
Glicolipid
Fosfolipid
Phospholipid
Apakah hubungan antara metabolisma dengan pergerakan bahan merentas membran plasma?
What is the relationship between metabolism and substance movement?
Metabolisma katabolik menghasilkan bahan buangan yang perlu disingkirkan daripada badan.
Metabolisma anabolik menghasilkan bahan buangan yang perlu disingkirkan daripada badan.
Metabolisma anabolik memerlukan bahan untuk diproses menjadi sebatian kompleks.
Metabolisma berlaku dalam setiap sel hidup
Apakah struktur X dan Y?
What are structure X and Y?
X : kepala berkutub fosfolipid
Y : Kepala tidak berkutub fosfolipid
X : kepala berkutub hidrofilik
Y : Kepala tidak berkutub hidrofobik
X : kepala berkutub hidrofobik
Y : Ekor tidak berkutub hidrofilik
X : kepala berkutub hidrofilik
Y : Ekor tidak berkutub hidrofobik
Apakah struktur M?
What is structure M?
Glikoprotein
Glicoprotein
Protein pembawa
Carrier protein
Protein liang
Channel protein
Dwilapisan fosfolipid
Phospholipid bilayer
Apakah struktur J dan K?
What are structure J and K?
J - Protein pembawa / Carrier protein
J - Protein liang / channel protein
K - Glikolipid / Glicolipid
K - Glikoprotein / Glicoprotein
Apakah konsep membran separa telap?
What is the concept of semi-permeable membrane?
Semua molekul bebas bergerak merentasinya dengan syarat.
Allows all types of molecules to move freely across it in one condition.
Semua molekul tidak boleh merentasinya
Does not allow any molecules to move across it.
Membenarkan sesetengah molekul merentasinya dan beberapa molekul tidak boleh merentasinya
Allow only few types of molecules to move freely across them but prevent the passage of other types of molecules.
Pada waktu tertentu molekul boleh bergerak bebas dan adakalanya tidak boleh.
All molecules can move freely across it in certain time while others cannot.
Apakah peranan glikoprotein dan glikolipid?
What are the functions of glicoprotein and glicolipid?
Tapak reseptor hormon tertentu seperti insulin.
Receptors of several hormone such as insulin
Menstabilkan membran plasma dengan membentuk ikatan hidrogen bersama air
Stabilized the membrane by forming hydrogen bond with water
Gabungan polisakarida dan protein atau lipid
Combination of polysaccharide chain between protein and lipid molecule
Berperanan sebagai antigen bagi pengecaman sel.
Acts as antigen for cell identification
Yang manakah di bawah merupakan membran separa telap buatan?
Which of the following are the synthetic semi-permeable membrane?
Membrane osmosis berbalik
Reverse osmosis membrane
Membrane kulit telur
Egg shell membrane
Tiub visking
Visking Tubing
Membrane organel
Organelle membrane
The apparent swelling of the 1st cell indicates the reaction of the cell to what?
a lower solute concentration outside the cell
a lower solute concentration inside the cell
a higher solute concentration outside the cell
a higher need to undergo cellular respiration to produce ATP
The movement of substances from an area of high concentration to an area of lower concentration is known as......
Cell membrane
facilitated diffusion
diffusion
active transport
What type of biomolecule is a major part of the cell membrane because it creates a thin hydrophobic layer that helps maintain selective permeability?
Carbohydrates
Lipids
Proteins
Nucleic Acids
The diagram reveals that lipids and proteins are both parts of cell membranes. They have different functions because lipids work to hold the cell membrane together, and proteins
stiffen the cell membrane.
move chemical molecules across the cell membrane.
store water in the cell membrane.
create fibers that attach to the ends of lipids.
All of the following describe the cell membrane EXCEPT
composed of phospholipid bilayer
site of cellular transport
regulates what gets into and out of the cell
site of ATP (energy) production
The passage of a substance from a region of higher concentration to lower concentration is known as
Homeostasis
Diffusion
Active Transport
Phagocytosis
The yellow and brown portion of this image is:
phospholipid
carbohydrate
chloesterol
protein
If saltwater plants are placed into a container of distilled water, what effect will this have on the plants?
The cells will seperate
The cells will shrink
The cells will swell
The cells will remain the same
Facilitated diffusion uses the help of ___________ to move larger or charged molecules from a high to low concentration.
energy
cells
carbohydrates
proteins
Examples of particles that can diffuse across through the phospholipid bilayer include
oxygen and carbon dioxide
sugar
calcium ions
water
The cell membrane is selectively permeable, which means...
All materials can enter and leave the cell
The cell allows all materials into the cell, but no materials allowed out
Certain materials can enter easily while others cannot
The cell allows no materials to enter the cell
When materials pass into and out of the cell at equal rates, the cell is in a state of
Dynamic equilibrium
Metabolism
Imbalance
Inertia
Which of the following is NOT part of the cell membrane?
lipids
proteins
carbohydrates
nucleic acids
Osmosis is the movement of _________ across a membrane.
food
water
oxygen
energy
The purple regions of the image represent:
phospholipid
protein
chloesterol
carbohydrate
Passive transport requires no
concentration gradients
motion
energy
osmosis
Which process involves the movement of molecules across the plasma membrane from areas of high to low concentration without any assistance or energy from the cell?
active transport
diffusion
endocytosis
metabolism
Macrophages engulf foreign particles from the bloodstream using energy through the process called phagocytosis. Why do macrophages require energy to engulf foreign particles?
Foreign particles are large molecules.
Foreign particles have complex body systems.
Foreign particles need to be taken care of quickly.
Foreign particles are organic molecules that can bind with DNA.
Diagram A: active transport; Diagram B: active transport
Diagram A: passive transport; Diagram B: active transport
Diagram A: active transport; Diagram B: passive transport
Diagram A: passive transport; Diagram B: passive transport
What type of molecule diffuses across a selectively permeable membrane during the process of osmosis?
carbon dioxide
glucose
water
oxygen
Which table shows the correct pairing of a molecule with its function in maintaining homeostasis in the human body?
The protein transports a food molecule against the concentration gradient using energy.
The protein transports a food molecule with the concentration gradient without using energy.
The protein removes a toxin with the concentration gradient using energy.
The protein removes a toxin against the concentration gradient without using energy.
Why is homeostasis important?
It allows organisms to maintain a constant internal environment.
It breaks down fats when carbohydrates are not available.
It uses the energy from sunlight to make sugar from carbon dioxide and water.
It is the process by which a less specialized cell becomes a more specialized cell type.
what process does the cell use proteins to transport large molecules, such as glucose, across the plasma membrane from areas of high to low concentration?
ATP
osmosis
active transport
facilitated diffusion
Healthy human beings can maintain their blood sugar levels within a narrow range of values, even after eating a large amount of carbohydrates. This is an example of what process?
circulation
digestion
homeostasis
metabolism
All molecules are present in the intracellular space.
All molecules are present in the extracellular space.
Molecules have relatively equal concentrations in both the extracellular and intracellular spaces.
Molecules have a greater concentration in the extracellular space than in the intracellular space.
bacterial
eukaryotic
prokaryotic
viral
It reduces the amount of sunlight that is reflected back.
It creates ample space for the storage of photosynthetic products for the plant.
It promotes quick transfer of photosynthetic products to other plant parts.
It increases the surface area for the absorption of sunlight.
The protons are moving with the concentration gradient by active transport.
The protons are moving against the concentration gradient by active transport.
The protons are moving with the concentration gradient by diffusion.
The protons are moving against the concentration gradient by diffusion.
hydrogen ions
fatty acids
amino acids
ATP
utilization of ATP molecules
dilution of a part of the cytoplasm
shrinking of the plasma membrane
absorbing heat from the environment
ATP
ADP
Na+
H+
What is required by all organisms for the maintenance of homeostasis?
carbon dioxide
energy
lipids
oxygen
The red blood cells of mammals are sensitive to changes in the salt concentration of an external solution. If the red blood cells are transferred from plasma to a less concentrated salt solution, they swell and eventually burst.
Which explanation best describes why mammalian red blood cells burst when transferred to a less concentrated salt solution?
Salt moves into the cell, causing it to swell and burst.
Water moves into the cell, causing it to swell and burst.
Salt moves out of the cell, causing it to swell and burst.
Water moves out of the cell, causing it to swell and burst.
Cell P can make proteins, and Cell Q cannot.
Cell P can make energy molecules, and Cell Q cannot.
Cell P can perform photosynthesis, and Cell Q cannot.
Cell P can store water, and Cell Q cannot.
A student studies the characteristics of prokaryotic cells and tries to draw an example of one. Which diagram shows the correct representation of a prokaryotic cell?
Transmembrane proteins span the width of cell membranes. Four types of transmembrane proteins are shown in a section of cell membrane.
Las proteínas transmembrana abarcan el ancho de las membranas celulares. Cuatro tipos de proteínas transmembrana se muestran en una sección de la membrana celular.
stop chemical reactions within the cell
synthesize molecules that signal other cells
help the cell interact with its external environment
remove large waste particles from the cytoplasm of the cell
This picture represents which type of cellular transport?
¿Esta imagen representa qué tipo de transporte celular?
Which statements best compare the function of an ATP molecule to a DNA molecule?
¿Qué enunciados comparan mejor la función de una molécula de ATP con una molécula de ADN?
ATP carries and transmits the genetic information of organisms. DNA serves as a biological catalyst that speeds up the rate of chemical reactions.
ATP provides energy for chemical reactions in the cell. DNA carries and transmits the genetic information of organisms.
ATP serves as a biological catalyst that speeds up the rate of chemical reactions. DNA acts as a structural sugar in the cell walls of plants
ATP acts as a structural sugar in the cell walls of plants. DNA provides energy for chemical reactions in the cell.
Which statement describes the process of osmosis in an animal cell?
¿Qué enunciado describe el proceso de ósmosis en una célula animal?
Sugar molecules move across the plasma membrane until the cell has enough energy to grow in size and divide
Water molecules move across the plasma membrane until solute concentrations are equal on both sides of the membrane.
Ions move across the plasma membrane until the inside of the cell has a higher concentration of positive charges.
Enzymes move across the plasma membrane until the cell has completed metabolism.
Cell have several mechanisms for regulating their internal environments. Which of these mechanisms involved in maintaining homeostasis requires energy?
Las células tienen varios mecanismos para regular sus ambientes internos. ¿Cuál de estos mecanismos implicados en el mantenimiento de la homeostasis requiere energía?
osmosis
diffusion
active transport
passive transport
Some students used vinegar to dissolve away the shells of three eggs and used the eggs as models of human red blood cells. The students observed the changes in the eggs when they were placed in different solutions. (View Image).
Which statement best describes the role of the cell membrane in this model?
Algunos estudiantes usaron vinagre para disolver las cáscaras de tres huevos y usaron los huevos como modelos de glóbulos rojos humanos. Los estudiantes observaron los cambios en los huevos cuando se colocaron en diferentes soluciones. (Ver imagen)
¿Qué afirmación describe mejor el papel de la membrana celular en este modelo?
The cell membrane is an impermeable barrier that prevents water from entering the cell.
The cell membrane allows solutes to enter the cell, which causes the cell to shrink.
The cell membrane allows water to enter and leave the cell.
The cell membrane removes solutes from the environment.
This diagram shows cellular activity across a cell membrane.
Which two processes does this diagram most directly model?
Este diagrama muestra la actividad celular a través de una membrana celular.
¿Qué dos procesos modela más directamente este diagrama?
Energy conversions and synthesis of new molecules
Synthesis of new molecules and homeostasis
Transport of molecules and energy conversions
Homeostasis and transport of molecules
In PASSIVE TRANSPORT, substances move from:
En el TRANSPORTE PASIVO, las sustancias se mueven desde:
High concentration to low concentration
Low concentration to high concentration
In ACTIVE TRANSPORT, substances move from:
En el TRANSPORTE ACTIVO, las sustancias se mueven desde:
High concentration to low concentration
Low concentration to high concentration
What type of transportation is depicted in this picture?
¿Qué tipo de transporte se representa en esta imagen?
Osmosis
Exocytosis
Endocytosis
Facilitated Diffusion
What type of transportation is depicted in this picture?
¿Qué tipo de transporte se representa en esta imagen?
Osmosis
Exocytosis
Endocytosis
Facilitated Diffusion
Grapes contain very few salt molecules. If I put a grape into very salty water over night, what do you think would happen?
Las uvas contienen muy pocas moléculas de sal. Si pongo una uva en agua muy salada durante la noche, ¿qué crees que sucedería?
The grape would shrivel up (get smaller)
The grape would swell up like a balloon (get larger)
The grape would not change size or shape (same)
The grape would develop a mutation which would start a chain of reaction ultimately resulting in a zombie apocalypse
Which is true about active transport?
¿Cuál es cierto sobre el transporte activo?
It requires (needs) energy
it does not require (not need) energy
The concentration of water is higher in the soil than in plant root cells. Water moves into root cells of a plant by...
La concentración de agua es mayor en el suelo que en las células de las raíces de las plantas. El agua se mueve hacia las células de la raíz de una planta por...
Molecules diffusing with the concentration gradient through a protein channel is...
Las moléculas que se difunden con el gradiente de concentración a través de un canal de proteína son...
What type of transport is this?
¿Qué tipo de transporte es este?
In diffusion, molecules move from _________ concentration?
En la difusión, las moléculas se mueven de _________ ¿concentración?
high to low
low to high
low to low
high to high
Osmosis describes movement of ___________ across the semipermeable membrane.
La ósmosis describe el movimiento de ___________ a través de la membrana semipermeable.
gas
sugar
water
people
Moving from areas of LOW concentration to areas of HIGH concentration is called?
¿Cómo se llama pasar de áreas de BAJA concentración a áreas de ALTA concentración?
What means of particle transport requires energy?
¿Qué medio de transporte de partículas requiere energía?
Where is there a low concentration of dye?
¿Dónde hay una baja concentración de colorante?
A membrane that allows SOME molecules to pass through it is called...
Una membrana que permite el paso de ALGUNAS moléculas se llama...
Impermeable
Permeable
Semipermeable
What will occur naturally as the dye spreads out in the water?
¿Qué ocurrirá naturalmente cuando el tinte se esparza en el agua?
diffusion
facilitated diffusion
active transport
endocytosis
