Cell Biology Questions

which of these molecules is made in the light reactions of photosynthesis and used in the Calvin cycle?

which of the following are produced during the citric acid cycle (Krebs)

pores in the surface of leaves through which co2 enters and o2 exits

the process of breaking atp into adp releases energy based on this description what two statements below apply to the reaction that transforms atp into adp?

in the fall leaves can appear orange this is because orange light is being ------- by the leaves

all cells use a molecule called ___ to carry and release energy cyclically

hydrolysis of which covalent bonds in ATP releases a considerable amount of energy?

the energy that flows through most biological systems on Earth ultimately comes from which source?

the branch of chemistry that studies ___ changes is called thermodynamics

A cell has the following molecules and structures: enzymes, DNA, ribosomes, plasma membrane, chloroplasts, and mitochondria. It could bea plant cell but not an animal cell.an archaeal cell or a plant cell.an animal cell or a plant cell.a bacterial cell.

A cell has formed a food vacuole as it ingested a food particle. Which of the following events is associated with the breakdown of that food particle?Digestion of the food particle occurs in a vesicle enclosed by a membrane that separates the digestion from the cytoplasm.Proteins for digestion of the food are made by ribosomes in the Golgi apparatus.The membrane of the food vacuole is derived from the cell wall.Enzymes for the breakdown of the food are delivered to the food vacuole from the cytosol.Proteins for digestion of the food particle were initially processed in mitochondria.

Which of the following structures will be found in nearly all eukaryotic cells?nucleoidchloroplastmitochondriaflagellacell wall

In an animal cell, DNA may be found in which of the following organelles?only in the nucleus and mitochondriain the nucleus, mitochondria, and rough ERonly in the nucleus and rough ERonly in the nucleus

Plant cells have mitochondriaTrue False

The total volume of plant cells is often significantly greater than the total volume in animal cells. The most reasonable explanation for this observation is thatplant cells are capable of having a much higher surface-to-volume ratio than animal cells.animal cells are spherical, whereas plant cells are elongated.plant cells contain a large vacuole that occupies much of the volume of the cell.plant cells have a much more highly convoluted (folded) plasma membrane than animal cells.

Transcription is the first of the two main steps of protein synthesis.TrueFalse

Which of the following are surface appendages that allow a bacterium to stick to a surface?mitochondria fimbriae cell walls flagella ribosomes

Animal cells have a cell wallTrueFalse

Which of the following is a common trait of chloroplasts and mitochondria?Both are surrounded by a single membrane.Both reproduce by meiosis.Proteins for both are synthesized on ribosomes in the rough ER.Both are found in plant and animal cells.Both contain their own DNA.

Which organelle plays a role in intracellular digestion?plasmodesmaGolgi apparatuslysosomechloroplastribosome