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Worksheets2NA Sci WA1 Revision (Transport in Plants & HSR (partial))
Total questions: 46
Worksheet time: 35mins
Which best explains diffusion?
Diffusion is the net movement of particles down a concentration gradient until equilibrium is reached.
Diffusion is the net movement of particles down a concentration gradient across a partially permeable membrane until equilibrium is reached.
Diffusion is the net movement of water molecules down a water potential gradient until equilibrium is reached.
Diffusion is the net movement of water molecules down a water potential gradient across a partially permeable membrane until equilibrium is reached.
A potato strip is immersed into concentrated salt solution. Two drops of blue dye was added to the solution.
Predict the change in length of the potato strip after 30 minutes.
Increase in length
Decrease in length
No change in length
A potato strip is immersed into concentrated salt solution. Two drops of blue dye was added to the solution.
The length of the potato strip changed. What process led to the change in length?
Diffusion
Osmosis
Transpiration pull
Ms Tan was too hungry
A potato strip is immersed into concentrated salt solution. Two drops of blue dye was added to the solution.
The colour of the potato strip changed. What process was involved in the colour change?
Diffusion
Osmosis
Transpiration pull
A potato strip is immersed into concentrated salt solution. Two drops of blue dye was added to the solution.
Describe the change in colour of the potato strip after 30 minutes.
There is higher water potential inside the potato cells compared to in the solution. Water molecules move out of the potato cells by osmosis. Hence, the potato strip loses colour.
There is higher water potential in the solution compared to inside the potato cells. Water molecules move into the potato cells by osmosis. Hence, the potato strip darkens in colour.
There is higher concentration of blue dye particles in the solution compared to inside the potato cells. Blue dye particles move into the potato cells by diffusion. Hence, the potato strip turns blue in colour.
There is higher concentration of blue dye particles inside the potato cells compared to in the solution. Blue dye particles move out of the potato cells by diffusion. Hence, the potato strip becomes less blue in colour.
A potato strip is immersed into concentrated salt solution. Two drops of blue dye was added to the solution.
Describe the change in length of the potato strip after 30 minutes.
There is higher water potential inside the potato cells compared to in the solution. Water molecules move out of the potato cells by osmosis. Hence, the potato strip decreases in length.
There is higher water potential in the solution compared to inside the potato cells. Water molecules move into the potato cells by osmosis. Hence, the potato strip increases in length.
There is higher concentration of blue dye particles in the solution compared to inside the potato cells. Blue dye particles move into the potato cells by diffusion. Hence, the potato strip increases in length.
There is higher concentration of blue dye particles inside the potato cells compared to in the solution. Blue dye particles move out of the potato cells by diffusion. Hence, the potato strip decreases in length.
Someone farts in an enclosed lift. The smell is able to reach the noses of the people in the lift through which process?
Diffusion
Osmosis
Transpiration pull
Which best explains osmosis?
Osmosis is the net movement of particles down a concentration gradient until equilibrium is reached.
Osmosis is the net movement of particles down a concentration gradient across a partially permeable membrane until equilibrium is reached.
Osmosis is the net movement of water molecules down a water potential gradient until equilibrium is reached.
Osmosis is the net movement of water molecules down a water potential gradient across a partially permeable membrane until equilibrium is reached.
What is the nature of a Visking tubing?
It is dilute.
It is concentrated.
It is a partially permeable membrane.
It is a fully permeable membrane.
What is the nature of 90% salt solution?
It is dilute.
It is concentrated.
It is a partially permeable membrane.
It is a fully permeable membrane.
What is the nature of 5% sugar solution?
It is dilute.
It is concentrated.
It is a partially permeable membrane.
It is a fully permeable membrane.
Describe the process happening at point 4. (hint: transpiration pull) [SELECT TWO ANSWERS for 2 marks]
Water vapour evaporates from the stomata of leaves through transpiration.
Water vapour evaporates from the xylem through transpiration.
Transpiration pull, a suction force, pulls water up the xylem from the roots to the leaves.
Transpiration pull, a suction force, pulls water up the xylem from the leaves to the roots.
Describe the process happening at point 1. (hint: osmosis) [SELECT TWO ANSWERS for 2 marks]
There is higher concentration in the soil compared to in the root hair cell.
There is higher water potential in the soil compared to in the root hair cell.
Water molecules move from the soil to the root hair cell by osmosis.
Water particles move from the soil to the root hair cell by osmosis.
What are the 2 vessels in the vascular bundle?
root
xylem
stem
phloem
Which numbers correspond to the xylem?
1
2
3
4
5
Which numbers correspond to the phloem?
1
2
3
4
6
Name part A.
(a)
Name part B.
(a)
Name part C.
(a)
Name part E.
(a)
Name part F.
(a)
Name part G.
(a)
Name part A.
(a)
Name part B.
(a)
Name part C.
(a)
Name part D.
(a)
Name part E.
(a)
Which is the function of the testes?
Secrete fluid with nutrients to provide sperms with energy to move
Transport semen out of the body (into woman’s vagina)
Site of production of sperms and male sex hormone/testosterone
Which is the function of the urethra in males?
Site of production of sperms and male sex hormone/testosterone
Transport semen out of the body (into woman’s vagina)
Secrete fluid with nutrients to provide sperms with energy to move
Which is the function of the male sex glands in males?
Site of production of sperms and male sex hormone/testosterone
Transport semen out of the body (into woman’s vagina)
Secrete fluid with nutrients to provide sperms with energy to move
Which is the function of the sperm duct in males?
Holds testes outside the body where the temperature is lower for production of healthy sperms
Transport semen out of the body (into woman’s vagina)
Carries sperms from testes to urethra
Which is the function of the scrotum in males?
Holds testes outside the body where the temperature is lower for production of healthy sperms
Transport semen out of the body (into woman’s vagina)
Carries sperms from testes to urethra
Which is the function of the ovary?
Site of production of mature ova and female sex hormones
Site of implantation of embryo for growth and development into a foetus
Enlarges during birth to allow passage of foetus
Site of sperm deposition
Canal for passage of foetus during birth
Which is the function of the oviduct?
Enlarges during birth to allow passage of foetus
Site of sperm deposition
Canal for passage of foetus during birth
Site of fertilisation
Transports ovum from ovary to uterus
Site of implantation of embryo for growth and development into a foetus
Which is the function of the cervix?
Enlarges during birth to allow passage of foetus
Site of sperm deposition
Canal for passage of foetus during birth
Site of fertilisation
Transports ovum from ovary to uterus
Site of implantation of embryo for growth and development into a foetus
Which is the function of the uterus?
Enlarges during birth to allow passage of foetus
Site of sperm deposition
Canal for passage of foetus during birth
Site of fertilisation
Transports ovum from ovary to uterus
Site of implantation of embryo for growth and development into a foetus
Which is the function of the vagina?
Enlarges during birth to allow passage of foetus
Site of sperm deposition
Canal for passage of foetus during birth
Site of fertilisation
Transports ovum from ovary to uterus
Site of implantation of embryo for growth and development into a foetus
Pathway of sperms: Where is the first organ where sperms can be found?
(a)
Pathway of sperms: Where is the second organ where sperms can be found?
testis -> (a)
Pathway of sperms: Where is the third organ where sperms can be found?
testis -> sperm duct -> (a)
Pathway of sperms: Where is the fourth organ where sperms can be found?
testis -> sperm duct -> urethra -> (a)
Pathway of sperms: Where is the fifth organ where sperms can be found?
testis -> sperm duct -> urethra -> vagina -> (a)
Pathway of sperms: Where is the sixth organ where sperms can be found?
testis -> sperm duct -> urethra -> vagina -> cervix -> (a)
Pathway of sperms: Where is the seventh organ where sperms can be found?
testis -> sperm duct -> urethra -> vagina -> cervix -> uterus -> (a)
Osmosis affects..... (select all that are correct)
volume
length
mass
colour
size
Diffusion affects..... (select all that are correct)
mass
smell
colour
weight
length
