Worksheets2025 Biology Benchmark
Total questions: 40
Worksheet time: 1hrs 3mins
What happens to water when it freezes?
It expands and floats, becoming more dense
It expands and floats, becoming less dense
It contracts and sinks, becoming more dense
It contracts and sinks, becoming less dense
______ is the movement of water from high to low concentration across a membrane.
Cohesion
Diffusion
Osmosis
Adhesion
Why is water considered a polar molecule?
The oxygen end is slightly negative and the hydrogen end is slightly positive
The hydrogen end is slightly negative and the oxygen end is slightly positive
The hydrogen and oxygen are covalently bonded
Because it is hydrophobic
water moves up a thin tube
Polarity
Surface tension
Capillary action
Universal solvent
Label 2 shows a...
Hydrogen bond
Covalent bond
Organize the macromolecules according to their elemental composition.
Carbohydrates
Lipids
Proteins
Nucleic Acids
enzymes _________ reactions by _________ activation energy.
speed up / raising
speed up / lowering
slow down / raising
slow down / lowering
Click on the model that correctly depicts the water molecule.
Match each property of water to its description.
A water molecules has regions of positive (+) and negative (-) charge.
Polarity
Water absorbs a lot of heat energy before its temperature rises.
High specific heat
Water molecules stick to other water molecules
Cohesion
Water molecules stick to other substances or surfaces
Adhesion
Water moves up a thin tube, like the tissue of a plant (xylem)
Capillary action
Match each scenario to its most useful macromolecule.
You are about to run a mile.
Carbohydrate
You need enzymes to digest food quickly
Protein
You are a hibernating animal
Lipid
You pass a gene on to your offspring.
Nucleic acid
Match each macromolecule to its structure.
carbon rings called monosaccharides
Carbohydrate
3D folded chains of amino acids
Protein
long, straight chains of hydrocarbon fatty acids
Lipid
chains of nucleotides, usually in a helix shape
Nucleic acid
Match each macromolecule to its function keywords.
insulation, long term energy
lipid
fast, short-term energy
carbohydrate
genetic
nucleic acid
enzymes, muscle, immune system
protein
The cell membrane is composed primarily of which macromolecules?
Lipids
Proteins
Carbohydrates
Nucleic acids
Cells are the smallest unit of life
Cells arise from other living cells
All cells store DNA in a nucleus
All living things are made of one or more cells
This organelle takes food and turns it into ENERGY for plant and animal cells during CELL RESPIRATION.
You can see in this picture that these cells have chloroplasts and rigid cell walls. What type of cells are they?
Match each organelle to its key word.
mitochondria
energy (ATP)
golgi
packages
nucleus
control
ribosomes
proteins
vacuole
storage
Match each organelle to its key word(s).
chloroplast
photosynthesis
ER
transport
vesicle
small package
lysosome
digestive enzymes
cell wall
structural support
In which diagram would water move INTO of the cell?
(black dots = solute)
This diagram shows the _________ transport of solute.
Active
Passive
Going into the cell, the free movement of ANY molecule from HIGH → LOW concentration is called...
(hint: it does NOT require energy)
osmosis
active transport
diffusion
exocytosis
Sort as either Prokaryotic or Eukaryotic
NO nucleus
Nucleus
Bacteria
Plants, animals, fungi, protists
Free-floating DNA in cytoplasm
Membrane-bound organelles
May have flagella, pili
May have mitochondria, chloroplasts, lysosomes, and more
Small, simple
Large, complex
ALL unicellular
MOSTLY multicellular
Under a microscope, you see a large cell with a nucleus and a cell wall.
What type of cell is this?
Prokaryotic - Plant
Eukaryotic - Plant
Prokaryotic - Animal
Eukaryotic - Animal
Organize these options into the right categories
A testable prediction or "educated guess"
"If....Then..."
A WHY explanation backed by a lot of evidence
A WHAT explanation that uses MATH (formulas, equations)
Which of these membrane processes requires energy?
facilitated diffusion
passive transport
active transport
protein assisted diffusion
Reorder the phases of mitosis.
Match each phase of the cell cycle to its description.
Interphase
Copy DNA
Grow
Prophase
DNA packed into chromosomes
Metaphase
Chromosomes line up in the middle
Anaphase
Chromatids pulled apart
Telophase
Two nuclei form
The reason organisms grow, and can repair damaged tissue is...
mitosis
photosynthesis
cell respiration
osmosis
Sort options into 1 of the 2 types of cell respiration.
OXYGEN
NO OXYGEN
MORE ATP made
LESS ATP made
Drag & drop items to complete the input/output cycle for photosynthesis and cell respiration.
Not all labels will be used.
The purpose of photosynthesis is to make...
The purpose of cell respiration is to make...
Photosynthesis and cell respiration both (a) energy.
Photosynthesis transforms (b) energy from the sun into stored (c) energy (glucose sugar).
Cell respiration transforms chemical energy into (d) energy (ATP).
Label the DNA molecule.
Not all answers will be used.
Peptide bonds
Hydrogen bonds
U
G
C
A
T
Categorize each as either DNA or RNA.
Double-stranded
Single-stranded
A-T, C-G
A-U, C-G
Deoxyribose sugar
Ribose sugar
Label the diagram with the 2 steps of protein synthesis.
translation
transcription
Which suspect has DNA that matches the blood stain?
1
2
3
Match the DNA code to its mRNA code.
ATACGA
UAUGCU
ACGGTA
UGCCAU
TAAGTT
AUUCAA
What does the question mark represent?
DNA
Protein
mRNA
Chromosomes
