WorksheetsQuiz #4 Cells, macromolecules, data, Sci Method etc
Total questions: 15
Worksheet time: 8mins
Which scientist first observed and named "cells" in 1665?
a. Anton van Leeuwenhoek
b. Robert Hooke
c. Charles Darwin
d. Louis Pasteur
What are the three main ideas/tenets of cell theory?
a. Cells contain DNA, cells need energy, cells reproduce
b. Cells are microscopic, cells need nutrients, cells die
c. All living things are made of cells, cells are the basic units of structure and function, new cells come from existing cells
d. Cells have organelles, cells need water, cells evolve over time
What did Leeuwenhoek discover in the 1680s using his microscope?
a. Plant cell walls
b. Single-celled organisms
c. Cell theory
d. DNA structure
What is the correct order of biological organization from smallest to largest?
Molecule → atom → cell → tissue → organ → organism
Atom → molecule → organelle → cell → tissue → organ system → organism
Organelle → cell → molecule → tissue → organ → organism
Atom → organelle → molecule → cell → tissue → organ → organism
What is the main difference between prokaryotic and eukaryotic cells?
Only eukaryotes contain DNA
Prokaryotes are always larger than eukaryotes
Eukaryotes have a membrane-bound nucleus containing DNA
Only prokaryotes can be unicellular
Which structure is found in plant cells but not in animal cells?
Mitochondria
Nucleus
Chloroplasts
Ribosomes
What are organelles?
a. Single-celled organisms
b. Specialized structures that perform specific tasks in cells
c. Types of molecules
d. Parts of DNA
What is the primary function of the nucleus?
Energy production
Protein synthesis
Contains genetic information
Photosynthesis
Which of these is a characteristic of eukaryotic cells?
Lack of membrane-bound organelles
Always unicellular
Generally larger and more complex than prokaryotes
DNA floating freely in cytoplasm
What is the function of the cell membrane?
To produce energy for the cell
To store genetic information
To provide structure and control what enters and exits the cell
To produce proteins for the cell
Why is water considered a polar molecule?
Oxygen is more electronegative than hydrogen
It has equal electron distribution
It has no electrical charge
Hydrogen atoms are larger than oxygen
What is the monomer of proteins?
Glucose
R-group
Nucleotide
Amino acid
Which molecule serves as the primary energy source for cellular respiration?
Cellulose
Glucose/sugar
Starch
Lipids
What is the primary function of triglycerides in the human body?
Genetic information storage
Enzyme catalysis
Long-term energy storage
Cell membrane structure
Why does ice float on liquid water?
Ice is heavier than liquid water
Ice molecules move faster
Ice has more energy
Ice is less dense than liquid water
