SCIENCE 1ST TERM ASSESSMENT

Question 1

cell-biosphere

Question 2

how do multicellular and unicellular grow

Answer 2

multicellular grow by absorbing water and nutrients and unicellular just does cell division

Question 3

adipocyte

Answer 3

fat cells

Question 4

2 types of reproduction

Answer 4

asexual and sexual

Question 5

what are the sex cells

Answer 5

sperm and egg cell

Question 6

zygote

Answer 6

fertilized egg

Question 7

heredity

Answer 7

the passing down of traits from parent to offspring

Question 8

homeostasis

Answer 8

stable internal condition like body temp, acid levels and oxygen levels

Question 9

external response to change

Answer 9

responds to stimuli and changes in the environment

Question 10

stimuli

Answer 10

are what trigger your senses

Question 11

metabolism

Answer 11

the sum of all chemical processes of life and the breakdown of food

Question 12

respiration

Answer 12

how the body breaks down food to enegry

Question 13

cellular respiration

Answer 13

process where organisms break down oxygen and sugar to energy, happens in the mitochondria

Question 14

ATP

Answer 14

adenosine triphosphate is the chemical energy

Question 15

radial

Answer 15

can be cut in multiple ways to create mirror halves, has top and bottom but no right and left

Question 16

bilateral

Answer 16

can be cut only one way for a similar right and left halves

Question 17

assymetrical

Answer 17

canot be cut into equal halves

Question 18

petals, sepals and receptacle

Answer 18

petals: for sttraction
sepals: a protection for developing flower buds
Receptacle the enlarged upper portion of the stem for connecting

Question 19

ability of an object to be cut into equal halves that are mirror images of each other

Answer 19

symmetry

Question 20

pistil

Answer 20

stigma: sticky
style: tube that connects stigma to ovary
ovary: contains ovules

Question 21

Stamen

Answer 21

Anther: contains pollen(sperm cells)

Question 22

male and female only flower

Answer 22

Staminate and Pistillate

Question 23

Pollination

Answer 23

first step of a plants reproduction where wind or an insect brings pollen from the anther to the stigma.

Question 23

Carpels

Answer 23

internal system of pistils

Question 24

nectar

Answer 24

sweet liquid stored in the base of the blossom

Question 25

corolla

Answer 25

multiple petals

Question 26

calyx

Answer 26

multiple sepals

Question 27

allogamy

Answer 27

one flower to another flower thats genetically the same

Question 28

xenogamy

Answer 28

one flower to another thats not genetically the same

Question 29

autogamy

Answer 29

same flower fertilization

Question 30

geitonogamy

Answer 30

same plant diff flower

Question 31

insect polllinated

Answer 31

IP pollen are large and spikey, IP stigma are stickier

Question 32

wind pollinated

Answer 32

WP pollen are smaller and lightweight, WP stigma are feather-like to trap passiNg pollen

Question 33

fertilization

Answer 33

fusion of a male gamete (sex cell) with a female gamete to form a zygote

Question 34

tube nucleus

Answer 34

the one that makes the way for the pollen tube

Question 35

pollen tube

Answer 35

where the sperm cell passes through

Question 36

central cell

Answer 36

turns into the dnosperm

Question 37

step 1 of fertilization

Answer 37

formation of the tube by tube nucleus

Question 38

step 2 of fertilization

Answer 38

fusion of the 2 sperm cells with central cell and the egg cell

Question 39

endosperm

Answer 39

tissue that forms around the embryo, protectiing it