Cell Processes Practice

Euglena are unicellular organisms that live in pond water and contain a nucleus, chloroplast, and flagellum. Given this information, we can determine that euglena...

• Are prokaryotic

• Can use photosynthesis

• Reproduce sexually

• Are a type of fungi

In the cycle shown in the figure above, which processes are shown by letters A and B?

• A - respiration, B - photosynthesis

• A - respiration, B - excretion

• A - decomposition, B - excretion

• A - decomposition, B - transpiration

Photosynthesis and cellular respiration are often described as existing in a cycle. Which statement best describes why this is true?

• Heterotrophs can perform photosynthesis and cellular respiration, while autotrophs can only perform photosynthesis

• Each reaction results in chemical products that are needed as reactants for the other reaction

• Plants perform cellular respiration and animals perform photosynthesis

• Plants perform only photosynthesis and animals perform cellular respiration

The cellular process in which materials are moved across a membrane from an area of low concentration to an area of high concentration is called

• Osmosis
• Simple Diffusion
• Active Transport
• Passive Transport 

When there is a lower concentration of water outside of a plant cell rather than inside a plant cell, the plant will tend to -

• lose water and wilt

• gain water and become rigid

• grow towards the sun

• increase its rate of photosynthesis

To create proteins, mRNA copies the DNA code. The mRNA must then transfer the DNA code from the nucleus to the ribosomes that are located in the cytoplasm. What action occurs next at the ribosomes?

• Messenger RNA is transcribed back into DNA to create nucleotide bases

• Nucleic acids are formed through the DNA code

• Nucleotides detach to form individual protein strands

• Specific proteins are formed through the linking of amino acids

During interphase, the cell

• grows, repairs, and makes more DNA.
• shrinks or shrivels.
• enters a deep cycle.
• stops growing

The picture below is an example of _________________.

• osmosis

• isotonic

• diffusion

• active transport

During osmosis

• water moves from high to low concentration

• large or oddly shaped molecules move across a cell membrane

• water moves when energy is used

• proteins are built

What is this image?

• cell membrane

• proteins

• nucleus

• mitochondria