Question 1

Which type of transport requires energy to move substances across the cell membrane?

Accepted Answer

Active transport

Answer

Passive transport

Answer

Facilitated diffusion

Answer

Osmosis

Question 2

What is the process called when water moves across a selectively permeable membrane?

Accepted Answer

Osmosis

Answer

Facilitated diffusion

Answer

Active transport

Answer

Diffusion

Question 3

What type of transport involves the engulfing of large particles or entire cells by the cell membrane?

Accepted Answer

Endocytosis

Answer

Facilitated diffusion

Answer

Exocytosis

Answer

Diffusion

Question 4

Which process allows for specific molecules to pass through the cell membrane via protein channels?

Accepted Answer

Facilitated diffusion

Answer

Simple diffusion

Answer

Osmosis

Answer

Active transport

Question 5

What type of solution causes a cell to swell due to water entering the cell?

Accepted Answer

Hypotonic solution

Answer

Isosmotic solution

Answer

Hypertonic solution

Answer

Isotonic solution

Question 6

What is the primary difference between active transport and passive transport?

Accepted Answer

Active transport requires energy, while passive transport does not

Answer

Active transport occurs in the presence of water, while passive transport occurs in dry conditions

Answer

Active transport can only move small molecules, passive transport can move large molecules

Answer

Active transport moves substances downward concentration gradients, passive transport moves them upward

Question 7

Which statement best describes viruses?

Accepted Answer

Viruses require a host cell to reproduce.

Answer

Viruses are made of cells and can reproduce independently.

Answer

Viruses can survive outside of hosts indefinitely.

Answer

Viruses have a complex cellular structure.

Question 8

Which of the following is true about eukaryotic cells compared to prokaryotic cells?

Accepted Answer

Eukaryotic cells have membrane-bound organelles, while prokaryotic cells do not.

Answer

Eukaryotic cells are always unicellular, while prokaryotic cells are multicellular.

Answer

Prokaryotic cells have a nucleus, while eukaryotic cells do not.

Answer

Both cell types lack DNA.

Question 9

Which of the following statements is true regarding the genetic material of bacteria and viruses?

Accepted Answer

Bacteria typically have circular DNA, while viruses can have DNA or RNA.

Answer

Both bacteria and viruses have linear DNA.

Answer

Bacteria do not contain any genetic material.

Answer

Viruses only have DNA as their genetic material.

Question 10

What is one major difference between bacterial cells and human cells?

Accepted Answer

Bacterial cells lack a nucleus.

Answer

Human cells cannot reproduce independently.

Answer

Bacterial cells have more organelles than human cells.

Answer

Human cells have thicker cell walls than bacterial cells.

Question 11

What is a key reason that antibiotics are effective against bacteria but not viruses?

Accepted Answer

Antibiotics target specific bacterial processes that viruses do not have.

Answer

Viruses reproduce faster than bacteria.

Answer

Antibiotics kill all types of microorganisms including viruses.

Answer

Viruses have thicker cell walls than bacteria.

Question 12

Which type of biomolecule includes enzymes, hormones, and structural components of cells?

Accepted Answer

Proteins

Answer

Nucleic acids

Answer

Carbohydrates

Answer

Lipids

Question 13

Which biomolecule is critical in facilitating biochemical reactions by lowering the activation energy?

Accepted Answer

Enzymes

Answer

Carbohydrates

Answer

Lipids

Answer

DNA

Question 14

Which biomolecule serves as a primary component of cell membranes?

Accepted Answer

Phospholipids

Answer

Proteins

Answer

Nucleic acids

Answer

Carbohydrates

Question 15

Which biomolecule functions as the main source of short-term energy for cells?

Accepted Answer

Carbohydrates

Answer

Proteins

Answer

Lipids

Answer

Nucleic acids

Question 16

Which of the following biomolecules is primarily responsible for storing genetic information in cells?

Accepted Answer

DNA

Answer

Proteins

Answer

Lipids

Answer

RNA

Question 17

What is the primary role of carbohydrates in living organisms?

Accepted Answer

Energy storage and supply

Answer

Hormonal regulation

Answer

Cellular structure

Answer

Genetic information storage

Question 18

Which statement accurately describes the DNA of prokaryotic cells?

Accepted Answer

It is circular and located in the cytoplasm.

Answer

It is double-stranded but not organized.

Answer

It is fragmented and stored in organelles.

Answer

It is linear and contained in a nucleus.

Question 19

Which organelle is absent in prokaryotic cells?

Accepted Answer

Nucleus

Answer

Ribosome

Answer

Cell wall

Answer

Plasma membrane

Question 20

What is a common feature of both prokaryotic and eukaryotic cells?

Accepted Answer

They both have ribosomes.

Answer

They both reproduce sexually.

Answer

They both have a cell wall made of cellulose.

Answer

They both have a nucleus.

Question 21

Which of the following organisms is classified as a prokaryote?

Accepted Answer

Escherichia coli (E. coli)

Answer

Saccharomyces cerevisiae (brewer's yeast)

Answer

Chlamydomonas reinhardtii (green algae)

Answer

Streptococcus pneumoniae

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