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Worksheets4th form exam revision
Total questions: 64
Worksheet time: 49mins
Which blood vessel brings deoxygenated blood back to the heart?
Aorta
Pulmonary vein
Vena cava
Pulmonary artery
Which blood vessel brings deoxygenated blood to the lungs?
Aorta
Pulmonary vein
Vena cava
Pulmonary artery
Which blood vessel brings oxygenated back to the heart?
Aorta
Pulmonary vein
Vena cava
Pulmonary artery
Which blood vessel delivers oxygenated blood to the rest of the body?
Aorta
Pulmonary vein
Vena cava
Pulmonary artery
What chamber is the first chamber that blood flows through when it enters the heart?
(a)
Which chamber pumps blood out of the heart?
(a)
True or false; ALL arteries carry oxygenated blood
True
False
The (a) artery supplies the kidneys with blood
The (a) vein removes blood from the liver
The ............... ............. vein supplies blood to the liver from the stomach
(a)
Arteries have what in relation to veins?
Thicker outer fibrous layer
Thinner elastic layer
Thicker muscular layer
Wider lumen
Have valves
2. A seed has three major parts.......
A) root, stem and leaves
B) seed coat, embryo and cotyledon
C) petal, sepal and stamen
10.- What are the conditions that plants need to germinate?
A) water, warmth, air
B) water, sunlight, air
C) water, sunlight, carbon dioxide
Which of these is involved in the starch test on leaves?
Heat the leaf in ethanol to destroy waxy cuticle
Add benedicts to the leaf
Add biuret to the leaf
Add starch to the leaf
Why is starch a good storage molecule?
Soluble so does affect water potential of cell
Insoluble so doesnt affect water potential of cell
Which results in offspring that are genetically unique and display a combination of traits from each parent?
Sexual
Asexual
Neither
Both
Which type of reproduction results in offspring that are identical to the parent?
Sexual
Asexual
Neither
Both
Which type of reproduction tends to be a longer process?
Sexual
Asexual
They occur at the same rate
Both are slow processes
Which type of reproduction tends to produce more offspring?
Sexual
Asexual
They occur at the same rate
What is the cell process called that produces sex cells?
Mitosis
Meiosis
Photosynthesis
Cellular Respiration
What is the placenta?
The fluid-filled sac that surrounds the fetus
The organ that connects the fetus to the mother's blood supply
The structure that forms around the fertilised egg
The structure that nourishes the egg before implantation
What might pass across the placenta from mother to fetus?
Glucose
Amino acids
Urea
Carbon dioxide
Oxygen
Which hormone is responsible for the thickening of the uterus lining in the menstrual cycle?
Oestrogen
FSH
LH
Progesterone
Which hormone is responsible for the development of the follicle/egg in the menstrual cycle?
Oestrogen
FSH
LH
Progesterone
Which hormone is responsible for ovulation in the menstrual cycle?
Oestrogen
FSH
LH
Progesterone
Which hormone is responsible for maintaining the uterus lining in the menstrual cycle?
Oestrogen
FSH
LH
Progesterone
Which hormone inhibits the release of only FSH in the menstrual cycle?
Oestrogen
FSH
LH
Progesterone
Which hormone inhibits the release of FSH and LH in the menstrual cycle?
Oestrogen
FSH
LH
Progesterone
Osmosis is the movement of _____ across a selectively permeable membrane.
food
energy
oxygen
water
What is Osmosis?
movement of water from equal concentrations
movement of water through a selectively-permeable membrane from high to low water potential.
Movement of water high to low water concentration
movement of water through a selectively-permeable membrane from low to high water concentration.
What in the cell is selectively permeable?
cell membrane
cell wall
cytoplasm
nucleus
Plant cells that lose water are called?
Lysed
Plasmolysed
Turgid
Shrivelled
Plant cells that gain water are called?
Lysed
Plasmolysed
Turgid
Shrivelled
The leaf has a shiny, waxy cuticle around it to
increase the rate of photosynthesis
attract more light
control water loss
stop carbon dioxide and oxygen gases escaping
What is letter "A" pointing to?
cuticle
upper epidermis
lower epidermis
palisade mesophyll
What is letter "D" pointing to?
upper epidermis
palisade mesophyll
spongy mesophyll
bundle sheath
Which of the following is pointing to the "guard cell"?
B
C
D
E
What happens to the movement of air bubble if apparatus is kept in front of a fan
Air bubble does not move
Air bubble moves very little
Air bubble does not change its position
Air bubble moves very fast
The rate of transpiration increases with
High atmospheric CO2 level
Low water content of leaf
Shedding of leaves
Dry air
The rate of transpiration decreases with
high temperature
high water content of leaf
closure of stomata
intensity of sunlight
What is transpiration?
Excess water being released from the aerial parts of plants in the form of water vapor
Excess sugar being released from the leave
The way a plant makes its food
When the plant uses sugar for energy
Select all of the environmental factors that would increase transpiration.
Increased humidity
Increased wind speed
Increased temperature
Decreased surface area
Adaptations in plant to reduce transpiration are -
No of stomata
Thickness of cuticle
Loss of leaves
All of the above
wide, narrow
narrow, wide
Which of the following is NOT filtered out of the blood in the kidneys?
Blood cells
Amino acids
Urea
Glucose
To enter the Bowman's capsule, fluid from the blood crosses (in the correct order)...
epithelium of Bowman's capsule, basement membrane, capillary endothelium
capillary endothelium, epithelium of Bowman's capsule, basement membrane
arteriole endothelium, basement membrane, epithelium of Bowman's capsule
capillary endothelium, basement membrane, epithelium of Bowman's capsule
Which of the following is the most efficient component of the filtration process in ultrafiltration?
podocytes
basement membrane
capillary endothelium
epithelium of Bowman's capsule
How is the lining of the PCT adapted for selective reabsorption?
thin layer - short diffusion distance
microvilli - large surface area
partially permeable
The step of the nitrogen cycle that is in red is called...
Denitrification
Nitrification
Nitrogen Fixation
Ammonification
The step of the nitrogen cycle that is in red is called...
Denitrification
Nitrification
Nitrogen Fixation
Ammonification
The step of the nitrogen cycle that is in red is called...
Denitrification
Nitrification
Nitrogen Fixation
Ammonification
The step of the nitrogen cycle that is in red is called...
Denitrification
Nitrification
Nitrogen Fixation
Ammonification
The step of the nitrogen cycle that is in red is called...
Denitrification
Nitrification
Assimilation
Ammonification
Nitrogen fixation...
animals eat the plants and other animals that contain nitrogen and release it through their waste
Bacteria in the soil and lightning in the atmosphere “fix” the nitrogen
Once in the ground, bacteria in the soil also nitrify the nitrogen
plants absorb nitrogen through their roots and return it back to the atmosphere
Ammonification...
animals eat the plants and other animals that contain nitrogen and release it through their waste
Bacteria in the soil and lightning in the atmosphere “fix” the nitrogen
Once in the ground, bacteria in the soil also nitrify the nitrogen
plants absorb nitrogen through their roots and return it back to the atmosphere
Denitrification...
animals eat the plants and other animals that contain nitrogen and release it through their waste
Bacteria in the soil and lightning in the atmosphere “fix” the nitrogen
nitrogen is released back into the atmosphere from the animal’s waste or decomposers
plants absorb nitrogen through their roots and return it back to the atmosphere
