Cambridge Science
review; Checkpoint
(grade 8) with correct
answers 2025/2026
why do plants need carbon dioxide water and light for photosynthesis to create biomass and
oxygen - correct answersPhotosynthesis requires carbon dioxide, H20, and sunlight in order to
create glucose needed to make the plant grow and also produces oxygen for us humans to
inhale
purpose of cilia - correct answersMoves the mucous upwards towards the pharynx to remove it
from the respiratory tract
how do plants absorb and transport water and minerals - correct answersnutrients are first
gathered by root hairs via soil and then transported by the xylem up to the leaves. the glucose is
then transported throughout the plant using the phloem
, what is the significance behind the structure of the phloem and xylem - correct answersthe
xylem produces an upward motion because the are solely used to transport minerals and water
up to the leaves. the phloem are used to transport glucose all over the plant.
balanced diet - correct answersA diet which contains an optimal ratio of nutrients
fats - correct answersa macro nutrient used to insulate and provide energy throughout the body
(lard)
Proteins - correct answersa macro nutrient used to build up muscles and in some cases provide
energy (chicken)
Carbohydrates - correct answersa macro nutrient primarily used to give us energy (bread)
minerals - correct answersa micro nutrient used to regulate fluids, grow bones, and help with
other bodily functions (salt)
vitamins - correct answersa micro nutrient that helps with normal bodily functions (vitamin C)
water - correct answersa micro nutrient that makes up more than 70% of our body and helps
form and make the body function
Nutrional Deficiences - correct answersa lack of nutrients that can cause fatigue, disease, and
possibly death (scurvy)
alimentary canal - correct answersdigestive tube that extends from the mouth to the anus that
is responsible for processing the consumed food
alimentary canal organs and functions - correct answersthe digestive tube containing the mouth
that grinds food using teeth, the pharynx that transports the food to the stomach that uses
review; Checkpoint
(grade 8) with correct
answers 2025/2026
why do plants need carbon dioxide water and light for photosynthesis to create biomass and
oxygen - correct answersPhotosynthesis requires carbon dioxide, H20, and sunlight in order to
create glucose needed to make the plant grow and also produces oxygen for us humans to
inhale
purpose of cilia - correct answersMoves the mucous upwards towards the pharynx to remove it
from the respiratory tract
how do plants absorb and transport water and minerals - correct answersnutrients are first
gathered by root hairs via soil and then transported by the xylem up to the leaves. the glucose is
then transported throughout the plant using the phloem
, what is the significance behind the structure of the phloem and xylem - correct answersthe
xylem produces an upward motion because the are solely used to transport minerals and water
up to the leaves. the phloem are used to transport glucose all over the plant.
balanced diet - correct answersA diet which contains an optimal ratio of nutrients
fats - correct answersa macro nutrient used to insulate and provide energy throughout the body
(lard)
Proteins - correct answersa macro nutrient used to build up muscles and in some cases provide
energy (chicken)
Carbohydrates - correct answersa macro nutrient primarily used to give us energy (bread)
minerals - correct answersa micro nutrient used to regulate fluids, grow bones, and help with
other bodily functions (salt)
vitamins - correct answersa micro nutrient that helps with normal bodily functions (vitamin C)
water - correct answersa micro nutrient that makes up more than 70% of our body and helps
form and make the body function
Nutrional Deficiences - correct answersa lack of nutrients that can cause fatigue, disease, and
possibly death (scurvy)
alimentary canal - correct answersdigestive tube that extends from the mouth to the anus that
is responsible for processing the consumed food
alimentary canal organs and functions - correct answersthe digestive tube containing the mouth
that grinds food using teeth, the pharynx that transports the food to the stomach that uses
