Worksheets8th Grade Mod A Unit 1 Lessons 1-4 Review Quiz
Total questions: 22
Worksheet time: 22mins
Which molecule is a source of energy, a store of energy in the body, and can mix with water?
lipid
chlorophyll
nucleic acid
carbohydrate
Which of these is the smallest?
cells
atoms
molecules
cell membranes
Nutritionists know that lipids are a vital nutrient that helps keep cells working properly. What is one way the cells in our bodies use lipids?
to make amino acids
to repair broken bones
to form cell membranes
to carry information in the cell
Some dog foods contain corn and wheat that provide the dog with carbohydrates. Why are carbohydrates important to cell processes?
They make amino acids.
They form cell membranes.
They are a source of energy.
They help chemical processes happen.
DNA stores genetic information. What type of molecule is DNA?
lipid
protein
nucleic acid
carbohydrate
Which of these is one of the six most common elements found in the human body?
iron
helium
oxygen
water
Ms. Salis explains to her class that sodium (Na) and chlorine (Cl) atoms bond to make table salt (NaCl). Which is the best description of table salt?
It is a cell.
It is an atom.
It is an element.
It is a compound.
When people eat foods high in proteins, such as meat, eggs and cheese, the body breaks down the proteins into smaller molecules. What is supplied to cells when the body breaks down proteins?
amino acids
nucleic acids
phospholipids
carbohydrates
What will happen if the concentration of water inside a cell is higher than the concentration of water outside a cell?
The cell will burst.
Water will move into the cell.
The cell will remain unchanged.
Water will move out of the cell.
Which molecules make up proteins?
amino acids
nucleic acids
carbohydrates
phospholipids
Plants contain xylem and phloem tissue. What organ system in animals performs a similar function as the xylem and phloem of plants?
digestive system
excretory system
respiratory system
circulatory system
A plant leaf is an organ that traps light energy to make food. In what way is an animal stomach similar to a plant leaf?
Both organs make food.
Both organs are made up of only one kind of cell.
Both organs are made up of several kinds of tissues.
Both organs take in oxygen and release carbon dioxide.
Which of the following is a plant organ responsible for trapping light energy to make food?
leaf
fruit
petal
root
Which is a type of tissue that both plants and animals have?
nerve
ground
protective
connective
Eugene is studying the levels of structural organization of an animal’s body. Which level would describe a dog’s eye?
organ
tissue
organ system
organism
Which term describes the adaptation of cells, organs, or organ systems for a specific function?
structure
specialization
multicellular organism
level of cellular organization
Prem finds an unusual object on the forest floor. After he examines it under a microscope and performs several lab tests, he concludes that the object is a living thing. Which of the following observations most likely led to Prem’s conclusion?
The object contained carbon.
Prem saw cells in the object.
The object had a green color.
Prem saw minerals inside the object.
Eukaryotic cells and prokaryotic cells have some parts in common. Which of the following pairs of parts would you find in both types of cells?
cytoplasm and nucleus
cell membrane and cytoplasm
DNA and membrane-bound organelles
cell membrane and membrane-bound organelles
What term describes the smallest unit that can perform all of the functions necessary for life?
a single cell
a cell nucleus
a cell membrane
a multicellular organism
Jayden knows that multicellular organisms are more complex than unicellular organisms. Which of the following is a characteristic of multicellular organisms?
obtaining food
having organelles
being able to move
having specialized cells
According to Theodor Schwann, all parts of organisms are made up of which of the following?
cells
nuclei
organs
organelles
What did Robert Virchow observe about cell division?
Cells have nuclei.
Cells move around.
Cells have cell membranes.
Cells come from other cells.
