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WorksheetsCellular Transport and Homeostasis
Total questions: 10
Worksheet time: 10mins
Which cell function is MOST directly dependent on the cytoskeleton?
transport of material inside the cell
response of the cell to external pathogens
storage of energy in stable long-term forms
direction of cellular activity
Which of these would be a model of diffusion?
a student passes through a revolving door
two students pass by each other in a hallway
two students bump into each other in a crowded subway car
many students pass from a crowded room into an empty hallway
Which two protein molecules are essential for muscle contraction and relaxation?
actin and myosin
collagen and tubulin
hemoglobin and myoglobin
amylase and polymerase
Which of these will occur if myosin fails to bind to actin during muscle contraction?
The muscle cells will lose ATP.
The muscle cells will remain relaxed.
The muscle cells will produce lactic acid
The muscle cells will lose calcium ions.
Newly made proteins are modified in which organelle?
ribosome
endoplasmic reticulum
mitochondrion
nuclear envelope
Which component of the cell membrane functions to actively transport molecules into the cell?
carbohydrate
cytoplasm
phospholipid
protein
Which process moves an ion across a cell membrane against the concentration gradient?
diffusion
exocytosis
facilitated diffusion
active transport
Which of the following travels from neuron to neuron as information is transmitted?
electrochemical impulses
RNA strands
transport vesicles high in ATP
mechanical forces
Electron transport in mitochondria results in a chemiosmotic gradient of which particle across the mitochondrial membrane?
ADP
ATP
protons
neutrons
Which cellular structure in an animal cell helps maintain homeostasis by controlling the transportation of substances into and out of the cell?
vacuole
cell wall
mitochondrion
cell membrane
