Biology: Cells and Chemistry of Life

Which of the following lists the levels of organization from smallest to largest?

• Cell, tissue, organ, organ system, organism

• Tissue, cell, organ system, organ, organism

• Cell, organ, tissue, organ system, organism

• Organ, tissue, cell organ system, organism

Tags

NGSS.HS-LS1-2

What is the mass number of an element with 5 protons, 6 neutrons, and 5 electrons?

• 5

• 6

• 11

• 12

Tags

NGSS.MS-PS1-1

What are the 3 different subatomic particles

(a)  

Which of the following are found in the space surrounding the nucleus of an atom?

• protons

• neutrons

• electrons

• ions

Which type of bond results from sharing of electrons?

• Hydrogen bond

• Ionic bond

• Covalent bond

• A mixture

What's the difference between a solution and a suspension?

Answer explanation

Solutions are mixtures in which solute and solvent are evenly mixed

Suspensions are mixtures in which solute and solvent cannot evenly mix, instead the solute and solvent separate upon standing. Think oil and water.

How to enzymes affect chemical reactions?

• They change the products

• They speed up chemical reactions

• They change the temperature of the reaction

• They change the pH of the reaction

Tags

NGSS.HS-PS1-5

How is a prokaryotic cell different from a eukaryotic cell?

Answer explanation

Prokaryotic cells are smaller and simpler. They have DNA, cytoplasm, and a cell membrane, but no nucleus or other organelles.

Eukaryotic cells are larger and more complex. They also have DNA, cytoplasm, and a cell membrane. They also have a nucleus and other organelles.

Which of the following is an example of prokaryote?

• Plant

• Animal

• Fungi

• Bacteria

Which is an organelle that would be found only in plant cells, but not animal cells?

• Mitochondria

• Rough ER

• Smooth ER

• Chloroplast

Tags

NGSS.MS-LS1-6