WorksheetsMarch Madness Week 4 7th Grade Science
Total questions: 15
Worksheet time: 15mins
A lysosome's main function is to...
Use light energy to make food
Protect the cell
Break down materials
Fight off infections
Ziyah is making a model of a living plant cell. The following objects are available to her for her model:
a cloth bag
a wire cage
a solar panel
a battery with wires
a zippered sandwich bag
Ziyah wants to represent the function of different plant cell parts by using objects that have functions similar to the cell’s parts.
Which object would represent the mitochondrion (singular for mitochondria)?
battery with wires
zippered sandwich bag
wire cage
solar panel
Which of the following is the BEST definition for passive transport?
Movement of substances through a cell membrane from a high to low concentration without the use of energy
Movement of substances through a cell membrane from a low to high concentration requiring the use of energy
Movement of substances through a cell membrane from a low to high concentration without the use of energy
Movement of substance through a cell membrane from a high to low concentration requiring the use of energy
Which of the following pictures shows a higher concentration?
A highway system is made up of many interconnected roads. Vehicles on these roads transport people, goods and wastes within cities and between cities. Which organ system is most like a highway system in its function?
Skeletal
Digestive
Circulatory
Nervous
Which statement describes how your body systems function so that you can survive?
The systems in my body share their functions in order to help me maintain homeostasis.
The systems in my body work together to help me get food, oxygen and energy to do things like move and respond to the environment.
The systems in my body share their functions in order to help me respond to the environment.
The systems in my body work independently and have separate functions that help me get food, oxygen and energy or do things like move and respond to the environment.
A mom with the heterozygous gene for Widows peak and a father with the heterozygous gene for Widows peak: odds their baby HAS a widow's peak?
0%
25%
75%
100%
A mom with a dominant HOMOZYGOUS gene of a hitchhiker's thumb and a dad with a homozygous recessive gene for a straight thumb. What is the baby's phenotype?
50% straight thumb
100% Hitchhiker's Thumb
25% Hitchhiker's Thumb
