Life Science - Reviewer (Grade 7-Science)

Microscope

100

Give one magnification parts of the microscope

Eyepiece or objectives

200

What is the formula for the Image size of an object in a microscope?

A. Actual size / Magnification                  
B. Image size/ Actual size

C. (Actual size) (Magnification)                  
D. Image size/Magnification

C. (Actual size) (Magnification)

300

Father of Microscopy

Anton Van Leeuwenhoek

400

3 Classification of Microscope according to Functions

1. Mechanical

2. Magnifying

3. Illuminating

500

Find the total magnification if compound microscope has 5X ocular lens and 40X objective.

200 x

Plant and animal Cells

100

Controls all the activities of the cell

Nucleus

200

Which of the following describes a unicellular organism?

A. It varies greatly in size

B. It can adapt to changing environment

C. It consists of multiple specialized cells

D. It forms tissues, organs and organ system

A. It varies greatly in size

300

If the chloroplasts of a plant cell are damaged, which will it be unable to do?

A. protect the cell

B. make food for the cell

C. excrete waste materials

D. give instruction for cell to reproduce

B. make food for the cell

400

Identify Cell A and Cell B

A- Animal Cell

B - Plant Cell

500

Label the parts of the cell from A to E

A- Cell Membrane

B - Cell Wall

C - Cytoplasm

D - Vacuole

E - Nucleus

Cellular Reproduction

100

Phase of the cell cycle where cell growth happens. 

Interphase

200

• Imagine a plant cell undergoing meiosis. During this process, the cell starts with 46 chromosomes. Create a diagram or explanation to demonstrate how the chromosomes are divided across the daughter cells by the end of meiosis. Based on your model or explanation, how many daughter cells will be produced, and how many chromosomes will each daughter cell contain?
• A. 2 daughter cells, each with 46 chromosomes
• B. 2 daughter cells, each with 23 chromosomes
• C. 4 daughter cells, each with 46 chromosomes
• D. 4 daughter cells, each with 23 chromosomes

B. 2 daughter cells, each with 23 chromosomes

300

Type of cell division is responsible for the healing process. 

Mitosis

400

TRUE OR FALSE: 

IN MEIOSIS,  IF one parent’s cell divides incorrectly, resulting in an extra chromosome______. 

1. The offspring will be identical to one parent.

2. The offspring will lose one chromosome to balance the total.

3. The offspring will have genetic conditions.

4. The offspring will not be affected by the extra chromosome.

1. FALSE

2. FALSE

3. TRUE

4. FALSE

500

Name these phases of Mitosis

A- ANAPHASE

B - METAPHASE

C- PROPHASE

D - TELOPHASE

Levels of Biological Organization

100

LOWEST LEVEL OF BIOLOGICAL ORGANIZATION

CELL

200

What level of BIological Organization described this? 

ORGAN SYSTEM

300

GIVE THE CORRECT sequences  of the biological organization from complex to simple. 

Biosphere – ecosystem - community – population –– organism – organ system –– organ – tissue - Cell

400

GIVE 2 EXAMPLES OF ORGAN SYSTEM FOR PLANTS

ROOT SYSTEM

SHOOT SYSTEM

500

GIVE 3 EXAMPLES OF  CELLS

ANSWERS MAY VARY

Trophic Levels and the Transfer of Energy

100

non living things components of ecoysystem

biotic

200

3 examples of biome

answers may vary

300

What happens to the energy from base to top?

Decreases

400

TRUE OR FALSE:
1. A consumer consumes the dead remains of organisms

2. A consumer can be classified as a primary[1] , secondary, and [2] tertiary consumer

3. Herbivores feed on plants, carnivores eat meat, and omnivores[3] feed on both plants and animals

4. Competition is a type of relationship between organisms for limited resources that interact with prey and predators.

a primary

, and

and omnivores

1. FALSE

2. TRUE

3. TRUE

4. FALSE

500

5 SYMBIOTIC RELATIONSHIPS

MUTUALISM

COMMENSALISM

PREDATION

PARASITISM

COMPETITION