6th Grade -1st 9 Weeks Test Review

A cross between a parent who is heterozygous for a trait and a parent who is homozygous recessive would result in what possible percentage for their offspring?

• 100% chance of being homozygous dominant

• 50% chance of being heterozygous and a 50% chance of being homozygous recessive

• 25% chance of being homozygous recessive and a 75% chance of being heterozygous

• 50% chance of being homozygous dominant, 25% chance of being homozygous recessive and a 25% chance of being heterozygous

Margie views an electron micrograph of a cell during biology lab. The cell has a flagellum, ribosomes, and a cell wall but no apparent nucleus.

• The cell must also contain a mitochondrion.

• The organelles of cell proves it is eukaryotic.

• The cell is a plant cell because it has a cell wall.

• The cell is prokaryotic since it lacks a nucleus.

Which of the following is a major tenet of the cell theory?

• All cells that currently exist have originated from pre-existing cells.

• All organisms are composed of one or more cells.

• All cells possess DNA enclosed within a nucleus.

• Cells are the most basic structural and functional unit of life.

• All cells have specific functions.

Tags

NGSS.MS-LS1-1

Which of these lists presents the stages of the cell cycle in the correct order?

• mitosis, interphase, cytokinesis

• interphase, mitosis, cytokinesis

• cytokinesis, mitosis, interphase

• prophase, mitosis, cytokinesis

What organelle is the number 6 pointing to?

• Vacuoles

• Golgi Bodies

• Mitochondria

• Nucleus

Tags

NGSS.MS-LS1-2

Which statement best describes cell theory?

• Cells are part of complex organisms that work together produce new cells.

• Cells perform a single life function, and most cells come from existing cells.

• Cells use energy from food to be able to perform life functions and work together to produce new cells.

• Cells are the basic unit of structure for all organisms, and all cells come from existing cells.

Select the part whose main job is to store nutrients, water, and waste in an animal cell.

• lysosome

• nucleus

• chloroplast

• vacuole

Tags

NGSS.MS-LS1-2

Select the part whose main job is to break down worn-out cell parts and other waste in an animal cell.

• nucleus

• lysosomes

• golgi body

• mitochondria

Tags

NGSS.MS-LS1-2

Select the part whose main job is to help an animal cell make proteins.

• endoplasmic reticulum

• vacuoles

• mitochondria

• cytoplasm

Tags

NGSS.MS-LS1-2

A scientist is comparing two cells. One cell, cell A, is from a unicellular organism, and the other cell, cell B, is from a multicellular organism.

What functional differences will the scientist most likely see when comparing the two cells?

• Cell A performs only one or a few functions, while cell B performs all of the organism's necessary functions.

• Cell A is very large and has many organelles, while cell B is very small and has only a few organelles.

• Cell A performs all of the organism's necessary functions, while cell B performs only one or a few functions.

• Cell A is very small and has only a few organelles, while cell B is very large and has many organelles.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2