Biology Flores Semester Review

Which of these is a function of the cell membrane in all cells?

• Producing a cellular nutrients

• preserving cellular wastes

• maintaining homeostasis

• neutralizing chemicals

Which of the following is found in both plant and animal cells?

• cell wall

• chloroplasts

• genetic material

• disgestive cavity

which of the following represents the phases of mitosis in their proper sequence?

• PMAT

• IPMTC

• IPAM

• PMIT

Which elements are in or could be in organic biomolecules

• H, P, N

• Al, Si, Cu

• Ca, K, N

• Fe, O, Mg

The chemical reactions taking place in a cell will most likely speed up if

• genetic material in the nucleus stops replicating

• size of the cell is increased

• enzymes are involved in the reaction

• concentration of the reactants is decreased

When molecules move from high concentration to low concentration

• phagocytosis

• pinocytosis

• diffusion

• cyclosis

Which of the following suggests that the shape of an enzyme determines the enzyme's function?

• enzymes are specific to a substrate

• Enzymes can operate in a wide range of conditions

• enzymes are activated by neighboring molecules

• enzymes can be found in all life-forms

Which chromosome number could be nondisjunction?

• 23

• 15

• 19

• 21

if a cat has 38 chromosomes in each of its body cells, how many chromosomes will be in each daughter cell after mitosis?

• 38

• 76

• 19

• 0

Euglena a eurokarote is different from cyanobacteria because the euglena has the

• ability to maintain homeostasis

• presence of ribosomes

• ability to reproduce

• presence of a nuclear membrane