Characteristics of life

All of the following can be used to identify a plant cell over an animal cell except.

• chloroplast

• cell wall

• large central vacuole

• mitochondria

Answer explanation

What can be used to identify a prokaryotic cell from a​ eukaryotic cell?

​ ​ (a)   ​ (b)   ​ (c)  

• lack of a nucleus
• no membrane-bound organelles
• circular DNA
• has a nucleus
• contains membrane-bound organelles
• linear DNA

Explain the order of sexual reproduction

• gamete

• baby

• embryo

• fertilization

• zygote

Eukaryotic cells are ​ ​ (a)   than prokaryotic cells, they are also ​ (b)   than prokaryotic cells.

• larger
• more complex
• smaller
• more simple

In which organelle is light energy converted into chemical energy?

• nucleus

• chloroplast

• cell membrane

• mitochondria

If the structure for DNA is the same for all organisms, what explains why there are different species?

• some organisms reproduce sexually, while other organisms reproduce asexually.

• some organisms live in terrestrial habitats while others live in aquatic habitats

• DNA sequence and the activated genes within the sequence.

• all of the above.

In what direction will movement occur during osmosis?

• solute will move to the left

• water will move to the left

• solute will move to the right

• water will move to the right

• Since the solution levels are the same, movement will not occur as equilibrium has been reached.

Answer explanation

Background, the membrane separating the two sides is permeable to water, but impermeable to the solute.

Which of the following structures would not be used for an organism to maintain homeostasis?

• contractile vacuole

• cytoplasm

• eyespot

• cell membrane

Identify how cellular organization occurs in multicellular organisms.​

• cells

• molecules

• atoms

• tissues

• organs,

  organ systems

Which biomolecule is used for quick energy?

• carbohydrates

• lipids

• proteins

• nucleic acids